{"id":308,"date":"2017-07-28T14:12:26","date_gmt":"2017-07-28T06:12:26","guid":{"rendered":"https:\/\/blog.jsjs.org\/?p=308"},"modified":"2017-07-28T14:12:26","modified_gmt":"2017-07-28T06:12:26","slug":"%e7%ae%80%e4%bb%8bselinux%e7%9a%84%e5%9c%a8centos-7-%e7%ac%ac2%e9%83%a8%e5%88%86%ef%bc%9a%e6%96%87%e4%bb%b6%e5%92%8c%e8%bf%9b%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/blog.jsjs.org\/?p=308","title":{"rendered":"\u7b80\u4ecbSELinux\u7684\u5728CentOS 7 \u2013 \u7b2c2\u90e8\u5206\uff1a\u6587\u4ef6\u548c\u8fdb\u7a0b"},"content":{"rendered":"<h3 id=\"introduction\">\u4ecb\u7ecd<\/h3>\n<p>\u5728<a href=\"http:\/\/www.howtoing.com\/an-introduction-to-selinux-on-centos-7-part-1-basic-concepts\/\">\u7b2c\u4e00\u90e8\u5206<\/a>\u6211\u4eecSELinux\u7684\u7cfb\u5217\uff0c\u6211\u4eec\u770b\u5230\u4e86\u5982\u4f55\u542f\u7528\u548c\u7981\u7528SELinux\uff0c\u5982\u4f55\u6539\u53d8\u4e00\u4e9b\u4f7f\u7528\u5e03\u5c14\u503c\u7684\u7b56\u7565\u8bbe\u7f6e\u3002\u00a0\u5728\u7b2c\u4e8c\u90e8\u5206\u4e2d\uff0c\u6211\u4eec\u5c06\u8ba8\u8bba\u6587\u4ef6\u548c\u8fdb\u7a0b\u5b89\u5168\u4e0a\u4e0b\u6587\u3002<\/p>\n<p>\u4ece\u524d\u9762\u7684\u6559\u7a0b\u5237\u65b0\u4f60\u7684\u8bb0\u5fc6\uff0c\u4e00\u4e2a\u6587\u4ef6\u7684\u5b89\u5168\u4e0a\u4e0b\u6587\u662f\u4e00\u4e2a<em>\u7c7b\u578b<\/em>\u00a0\uff0c\u4e00\u4e2a\u8fc7\u7a0b\u7684\u5b89\u5168\u4e0a\u4e0b\u6587\u662f\u4e00\u4e2a<em>\u57df<\/em>\u00a0\u3002<\/p>\n<blockquote><p><strong>\u6ce8\u610f<\/strong><br \/>\n\u672c\u6559\u7a0b\u4e2d\u663e\u793a\u7684\u547d\u4ee4\uff0c\u5305\u548c\u6587\u4ef6\u5728CENTOS 7\u4e0a\u8fdb\u884c\u4e86\u6d4b\u8bd5\u3002\u5176\u4ed6\u53d1\u884c\u7248\u7684\u6982\u5ff5\u4fdd\u6301\u4e0d\u53d8\u3002<\/p><\/blockquote>\n<p>\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u9664\u975e\u53e6\u6709\u8bf4\u660e\uff0c\u5426\u5219\u6211\u4eec\u5c06\u4ee5root\u7528\u6237\u8eab\u4efd\u8fd0\u884c\u547d\u4ee4\u3002\u00a0\u5982\u679c\u60a8\u6ca1\u6709\u8bbf\u95ee\u5230root\u5e10\u6237\uff0c\u5e76\u4f7f\u7528\u4f7f\u7528sudo\u6743\u9650\u7684\u5176\u4ed6\u5e10\u6237\uff0c\u60a8\u9700\u8981\u4e0e\u5148\u4e8e\u547d\u4ee4<code class=\" prettyprinted\"><span class=\"pln\">sudo<\/span><\/code>\u5173\u952e\u5b57\u3002<\/p>\n<h2 id=\"creating-test-user-accounts\">\u521b\u5efa\u6d4b\u8bd5\u7528\u6237\u5e10\u6237<\/h2>\n<p>\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u521b\u5efa\u56db\u4e2a\u7528\u6237\u5e10\u6237\u6765\u6f14\u793aSELinux\u7684\u529f\u80fd\u3002<\/p>\n<ul>\n<li>\u666e\u901a\u7528\u6237<\/li>\n<li>\u5207\u6362\u7528\u6237<\/li>\n<li>\u8bbf\u5ba2<\/li>\n<li>restricteduser<\/li>\n<\/ul>\n<p>\u76ee\u524d\u5e94\u8be5\u662f<strong>root<\/strong>\u7528\u6237\u3002\u00a0\u8ba9\u6211\u4eec\u8fd0\u884c\u4e0b\u9762\u7684\u547d\u4ee4\u6765\u6dfb\u52a0<strong>regularuser<\/strong>\u5e10\u6237\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">useradd <\/span><span class=\"pun\">-<\/span><span class=\"pln\">c <\/span><span class=\"str\">\"Regular User\"<\/span><span class=\"pln\"> regularuser<\/span><\/code><\/pre>\n<p>\u7136\u540e\uff0c\u6211\u4eec\u8fd0\u884c<code class=\" prettyprinted\"><span class=\"pln\">passwd<\/span><\/code>\u547d\u4ee4\u6765\u4fee\u6539\u81ea\u5df1\u7684\u53e3\u4ee4\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">passwd regularuser<\/span><\/code><\/pre>\n<p>\u8f93\u51fa\u5c06\u8981\u6c42\u6211\u4eec\u8f93\u5165\u65b0\u5bc6\u7801\u3002\u00a0\u4e00\u65e6\u63d0\u4f9b\uff0c\u8be5\u5e10\u6237\u5c06\u51c6\u5907\u767b\u5f55\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"typ\">Changing<\/span><span class=\"pln\"> password <\/span><span class=\"kwd\">for<\/span><span class=\"pln\"> user regularuser<\/span><span class=\"pun\">.<\/span>\n<span class=\"typ\">New<\/span><span class=\"pln\"> password<\/span><span class=\"pun\">:<\/span>\n<span class=\"typ\">Retype<\/span> <span class=\"kwd\">new<\/span><span class=\"pln\"> password<\/span><span class=\"pun\">:<\/span><span class=\"pln\">\npasswd<\/span><span class=\"pun\">:<\/span><span class=\"pln\"> all authentication tokens updated successfully<\/span><span class=\"pun\">.<\/span><\/code><\/pre>\n<p>\u8ba9\u6211\u4eec\u521b\u5efa\u5176\u4ed6\u5e10\u6237\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">useradd <\/span><span class=\"pun\">-<\/span><span class=\"pln\">c <\/span><span class=\"str\">\"Switched User\"<\/span><span class=\"pln\"> switcheduser\n\npasswd switcheduser<\/span><\/code><\/pre>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">useradd <\/span><span class=\"pun\">-<\/span><span class=\"pln\">c <\/span><span class=\"str\">\"Guest User\"<\/span><span class=\"pln\"> guestuser\n\npasswd guestuser <\/span><\/code><\/pre>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">useradd <\/span><span class=\"pun\">-<\/span><span class=\"pln\">c <\/span><span class=\"str\">\"Restricted Role User\"<\/span><span class=\"pln\"> restricteduser\n\npasswd restricteduser <\/span><\/code><\/pre>\n<h2 id=\"selinux-for-processes-and-files\">SELinux\u7528\u4e8e\u8fdb\u7a0b\u548c\u6587\u4ef6<\/h2>\n<p>SELinux\u7684\u76ee\u7684\u662f\u4fdd\u62a4\u8fdb\u7a0b\u5728Linux\u73af\u5883\u4e2d\u8bbf\u95ee\u6587\u4ef6\u7684\u65b9\u5f0f\u3002\u00a0\u6ca1\u6709SELinux\uff0c\u50cfApache\u5b88\u62a4\u8fdb\u7a0b\u90a3\u6837\u7684\u8fdb\u7a0b\u6216\u5e94\u7528\u7a0b\u5e8f\u5c06\u5728\u542f\u52a8\u5b83\u7684\u7528\u6237\u7684\u4e0a\u4e0b\u6587\u4e2d\u8fd0\u884c\u3002\u00a0\u56e0\u6b64\uff0c\u5982\u679c\u60a8\u7684\u7cfb\u7edf\u53d7\u5230root\u7528\u6237\u4e0b\u8fd0\u884c\u7684\u6d41\u6c13\u5e94\u7528\u7a0b\u5e8f\u7684\u653b\u51fb\uff0c\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u505a\u4efb\u4f55\u5b83\u60f3\u8981\u7684\uff0c\u56e0\u4e3aroot\u5bf9\u6bcf\u4e2a\u6587\u4ef6\u62e5\u6709\u6240\u6709\u6743\u9650\u3002<\/p>\n<p>SELinux\u5c1d\u8bd5\u8fdb\u4e00\u6b65\uff0c\u6d88\u9664\u8fd9\u79cd\u98ce\u9669\u3002\u00a0\u4f7f\u7528SELinux\uff0c\u8fdb\u7a0b\u6216\u5e94\u7528\u7a0b\u5e8f\u5c06\u53ea\u5177\u6709\u5b83\u6240\u9700\u7684\u529f\u80fd\u548c\u66f4\u591a\u7684\u6743\u9650\u3002SELinux\u7b56\u7565\u7684\u5e94\u7528\u7a0b\u5e8f\u5c06\u51b3\u5b9a\u5b83\u9700\u8981\u4ec0\u4e48\u7c7b\u578b\u7684\u6587\u4ef6\u83b7\u5f97\u4ec0\u4e48\u5904\u7406\u5b83\u53ef\u4ee5<em>\u8f6c\u6362<\/em>\u5230\u3002\u00a0SELinux\u7b56\u7565\u7531\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\u4eba\u5458\u7f16\u5199\uff0c\u5e76\u968f\u652f\u6301\u5b83\u7684Linux\u53d1\u884c\u7248\u4e00\u8d77\u63d0\u4f9b\u3002\u00a0\u7b56\u7565\u57fa\u672c\u4e0a\u662f\u4e00\u7ec4\u5c06\u6d41\u7a0b\u548c\u7528\u6237\u6620\u5c04\u5230\u5176\u6743\u9650\u7684\u89c4\u5219\u3002<\/p>\n<p>\u6211\u4eec\u901a\u8fc7\u4e86\u89e3SELinux\u00a0<em>\u5185\u5bb9<\/em>\u548c<em>\u57df<\/em>\u610f\u5473\u7740\u5f00\u59cb\u6559\u7a0b\u7684\u8fd9\u4e00\u90e8\u5206\u7684\u8ba8\u8bba\u3002<\/p>\n<p>\u5b89\u5168\u7684\u7b2c\u4e00\u90e8\u5206\u653e\u7f6e\u4e00\u4e2a<em>\u6807\u7b7e<\/em>\u4e0a\u5728Linux\u7cfb\u7edf\u4e2d\u7684\u6bcf\u4e2a\u5b9e\u4f53\u3002\u00a0\u6807\u7b7e\u4e0e\u4efb\u4f55\u5176\u4ed6\u6587\u4ef6\u6216\u8fdb\u7a0b\u5c5e\u6027\uff08\u6240\u6709\u8005\uff0c\u7ec4\uff0c\u521b\u5efa\u65e5\u671f\u7b49\uff09\u76f8\u540c;\u00a0\u5b83\u663e\u793a\u4e86\u8d44\u6e90\u7684<em>\u60c5\u51b5\u4e0b<\/em>\u00a0\u3002\u00a0\u90a3\u4e48\u4ec0\u4e48\u662f\u4e0a\u4e0b\u6587\uff1f\u00a0\u7b80\u5355\u6765\u8bf4\uff0c\u4e0a\u4e0b\u6587\u662f\u4e00\u4e2a\u5b89\u5168\u76f8\u5173\u4fe1\u606f\u7684\u96c6\u5408\uff0c\u5e2e\u52a9SELinux\u505a\u51fa\u8bbf\u95ee\u63a7\u5236\u51b3\u7b56\u3002\u00a0Linux\u7cfb\u7edf\u4e2d\u7684\u4e00\u5207\u90fd\u53ef\u4ee5\u6709\u5b89\u5168\u4e0a\u4e0b\u6587\uff1a\u7528\u6237\u5e10\u6237\uff0c\u6587\u4ef6\uff0c\u76ee\u5f55\uff0c\u5b88\u62a4\u7a0b\u5e8f\u6216\u7aef\u53e3\u90fd\u53ef\u4ee5\u6709\u5176\u5b89\u5168\u4e0a\u4e0b\u6587\u3002\u00a0\u7136\u800c\uff0c\u5b89\u5168\u4e0a\u4e0b\u6587\u5bf9\u4e8e\u4e0d\u540c\u7c7b\u578b\u7684\u5bf9\u8c61\u610f\u5473\u7740\u4e0d\u540c\u7684\u4e1c\u897f\u3002<\/p>\n<h3 id=\"selinux-file-contexts\">SELinux\u6587\u4ef6\u4e0a\u4e0b\u6587<\/h3>\n<p>\u8ba9\u6211\u4eec\u4ece\u7406\u89e3SELinux\u6587\u4ef6\u4e0a\u4e0b\u6587\u5f00\u59cb\u3002\u00a0\u8ba9\u6211\u4eec\u770b\u770b\u5e38\u89c4ls -l\u547d\u4ee4\u5bf9\/ etc\u76ee\u5f55\u7684\u8f93\u51fa\u3002<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">ls <\/span><span class=\"pun\">-<\/span><span class=\"pln\">l <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">etc<\/span><span class=\"com\">\/*.conf<\/span><\/code><\/pre>\n<p>\u8fd9\u5c06\u5411\u6211\u4eec\u5c55\u793a\u4e00\u4e2a\u719f\u6089\u7684\u8f93\u51fa\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pun\">...<\/span>\n<span class=\"pun\">-<\/span><span class=\"pln\">rw<\/span><span class=\"pun\">-<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--.<\/span> <span class=\"lit\">1<\/span><span class=\"pln\"> root root    <\/span><span class=\"lit\">19<\/span> <span class=\"typ\">Aug<\/span> <span class=\"lit\">19<\/span> <span class=\"lit\">21<\/span><span class=\"pun\">:<\/span><span class=\"lit\">42<\/span> <span class=\"pun\">\/<\/span><span class=\"pln\">etc<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">locale<\/span><span class=\"pun\">.<\/span><span class=\"pln\">conf\n<\/span><span class=\"pun\">-<\/span><span class=\"pln\">rw<\/span><span class=\"pun\">-<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--.<\/span> <span class=\"lit\">1<\/span><span class=\"pln\"> root root   <\/span><span class=\"lit\">662<\/span> <span class=\"typ\">Jul<\/span> <span class=\"lit\">31<\/span>  <span class=\"lit\">2013<\/span> <span class=\"pun\">\/<\/span><span class=\"pln\">etc<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">logrotate<\/span><span class=\"pun\">.<\/span><span class=\"pln\">conf\n<\/span><span class=\"pun\">-<\/span><span class=\"pln\">rw<\/span><span class=\"pun\">-<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--.<\/span> <span class=\"lit\">1<\/span><span class=\"pln\"> root root  <\/span><span class=\"lit\">5171<\/span> <span class=\"typ\">Jun<\/span> <span class=\"lit\">10<\/span> <span class=\"lit\">07<\/span><span class=\"pun\">:<\/span><span class=\"lit\">35<\/span> <span class=\"pun\">\/<\/span><span class=\"pln\">etc<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">man_db<\/span><span class=\"pun\">.<\/span><span class=\"pln\">conf\n<\/span><span class=\"pun\">-<\/span><span class=\"pln\">rw<\/span><span class=\"pun\">-<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--.<\/span> <span class=\"lit\">1<\/span><span class=\"pln\"> root root   <\/span><span class=\"lit\">936<\/span> <span class=\"typ\">Jun<\/span> <span class=\"lit\">10<\/span> <span class=\"lit\">05<\/span><span class=\"pun\">:<\/span><span class=\"lit\">59<\/span> <span class=\"pun\">\/<\/span><span class=\"pln\">etc<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">mke2fs<\/span><span class=\"pun\">.<\/span><span class=\"pln\">conf\n<\/span><span class=\"pun\">...<\/span><\/code><\/pre>\n<p>\u7b80\u5355\uff0c\u5bf9\u5427\uff1f\u00a0\u8ba9\u6211\u4eec\u73b0\u5728\u6dfb\u52a0-Z\u6807\u5fd7\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">ls <\/span><span class=\"pun\">-<\/span><span class=\"pln\">Z <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">etc<\/span><span class=\"com\">\/*.conf<\/span><\/code><\/pre>\n<p>\u6211\u4eec\u73b0\u5728\u5728\u7528\u6237\u548c\u7ec4\u6240\u6709\u6743\u540e\u8fd8\u6709\u4e00\u4e2a\u989d\u5916\u7684\u4fe1\u606f\u5217\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pun\">...<\/span>\n<span class=\"pun\">-<\/span><span class=\"pln\">rw<\/span><span class=\"pun\">-<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--.<\/span><span class=\"pln\"> root root system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">locale_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0    <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">etc<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">locale<\/span><span class=\"pun\">.<\/span><span class=\"pln\">conf\n<\/span><span class=\"pun\">-<\/span><span class=\"pln\">rw<\/span><span class=\"pun\">-<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--.<\/span><span class=\"pln\"> root root system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">etc_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0       <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">etc<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">logrotate<\/span><span class=\"pun\">.<\/span><span class=\"pln\">conf\n<\/span><span class=\"pun\">-<\/span><span class=\"pln\">rw<\/span><span class=\"pun\">-<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--.<\/span><span class=\"pln\"> root root system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">etc_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0       <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">etc<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">man_db<\/span><span class=\"pun\">.<\/span><span class=\"pln\">conf\n<\/span><span class=\"pun\">-<\/span><span class=\"pln\">rw<\/span><span class=\"pun\">-<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--.<\/span><span class=\"pln\"> root root system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">etc_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0       <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">etc<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">mke2fs<\/span><span class=\"pun\">.<\/span><span class=\"pln\">conf\n<\/span><span class=\"pun\">...<\/span><\/code><\/pre>\n<p>\u6b64\u5217\u663e\u793a\u6587\u4ef6\u7684\u5b89\u5168\u4e0a\u4e0b\u6587\u3002\u00a0\u4e00\u4e2a\u6587\u4ef6\uff0c\u636e\u8bf4\u5df2\u88ab<em>\u8d34\u4e0a<\/em>\u4e86\u5176\u5b89\u5168\u6027\u4e0a\u4e0b\u6587\uff0c\u5f53\u4f60\u6709\u76f8\u5173\u7684\u53ef\u7528\u4fe1\u606f\u3002\u00a0\u8ba9\u6211\u4eec\u4ed4\u7ec6\u770b\u770b\u4e00\u4e2a\u5b89\u5168\u4e0a\u4e0b\u6587\u3002<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pun\">-<\/span><span class=\"pln\">rw<\/span><span class=\"pun\">-<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--.<\/span><span class=\"pln\"> root    root  system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">etc_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0       <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">etc<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">logrotate<\/span><span class=\"pun\">.<\/span><span class=\"pln\">conf<\/span><\/code><\/pre>\n<p>\u5b89\u5168\u4e0a\u4e0b\u6587\u662f\u8fd9\u90e8\u5206\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">etc_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0<\/span><\/code><\/pre>\n<p>\u6709\u56db\u4e2a\u90e8\u5206\uff0c\u5b89\u5168\u4e0a\u4e0b\u6587\u7684\u6bcf\u4e2a\u90e8\u5206\u7531\u5192\u53f7\uff08:)\u5206\u9694\u3002\u00a0\u7b2c\u4e00\u90e8\u5206\u662f\u4e3a\u6587\u4ef6\u7684SELinux\u00a0<em>\u7528\u6237<\/em>\u4e0a\u4e0b\u6587\u3002\u00a0\u7a0d\u540e\u6211\u4eec\u5c06\u8ba8\u8bbaSELinux\u7684\u7528\u6237\uff0c\u4f46\u73b0\u5728\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0c\u5b83\u7684<strong>system_u\u3002<\/strong>\u00a0\u6bcf\u4e2aLinux\u7528\u6237\u5e10\u6237\u6620\u5c04\u5230SELinux\u7684\u7528\u6237\uff0c\u5e76\u4e14\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u62e5\u6709\u8be5\u6587\u4ef6\u7684<strong>\u6839<\/strong>\u7528\u6237\u88ab\u6620\u5c04\u5230<strong>system_u<\/strong>\u00a0SELinux\u7684\u7528\u6237\u3002\u00a0\u6b64\u6620\u5c04\u7531SELinux\u7b56\u7565\u5b8c\u6210\u3002<\/p>\n<p>\u7b2c\u4e8c\u90e8\u5206\u89c4\u5b9a\u4e86SELinux\u7684<em>\u4f5c\u7528<\/em>\u00a0\uff0c\u8fd9\u4e5f\u662f<strong>object_r\u3002<\/strong>\u00a0\u8981\u5237\u65b0SELinux\u89d2\u8272\uff0c\u8bf7\u56de\u987e\u7b2c\u4e00\u4e2aSELinux\u6587\u7ae0\u3002<\/p>\n<p>\u4ec0\u4e48\u662f\u6700\u91cd\u8981\u7684\u8fd9\u91cc\u662f\u7b2c\u4e09\u90e8\u5206\uff0c\u8fd9\u662f\u8fd9\u91cc\u5217\u4e3a<strong>etc_t<\/strong>\u6587\u4ef6\u7684<em>\u7c7b\u578b<\/em>\u00a0\u3002\u00a0\u8fd9\u662f\u5b9a\u4e49\u4ec0\u4e48<em>\u7c7b\u578b<\/em>\u7684\u6587\u4ef6\u6216\u76ee\u5f55\u6240\u5c5e\u7684\u4e00\u90e8\u5206\u3002\u00a0\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0c\u5927\u90e8\u5206\u6587\u4ef6\u5c5e\u4e8e\u5728\u8be5<strong>etc_t<\/strong>\u7c7b\u578b<code class=\" prettyprinted\"><span class=\"pun\">\/<\/span><span class=\"pln\">etc<\/span><\/code>\u76ee\u5f55\u4e2d\u3002\u00a0\u5047\u60f3\uff0c\u4f60\u80fd\u60f3\u5230\u7c7b\u578b\u7684\u4f5c\u4e3a\u4e00\u79cd\u201c\u57fa\u56e2\u201d\u6216<em>\u5c5e\u6027<\/em>\u7684\u6587\u4ef6\u7684\uff1a\u5b83\u7684\u6587\u4ef6\u8fdb\u884c\u5206\u7c7b\u7684\u65b9\u6cd5\u3002<\/p>\n<p>\u6211\u4eec\u8fd8\u53ef\u4ee5\u770b\u5230\u4e00\u4e9b\u6587\u4ef6\u53ef\u80fd\u5c5e\u4e8e\u5176\u4ed6\u7c7b\u578b\uff0c\u5982<code class=\" prettyprinted\"><span class=\"pln\">locale<\/span><span class=\"pun\">.<\/span><span class=\"pln\">conf<\/span><\/code>\u5177\u6709<strong>locale_t<\/strong>\u7c7b\u578b\u3002\u00a0\u5373\u4f7f\u5f53\u6b64\u5904\u5217\u51fa\u7684\u6240\u6709\u6587\u4ef6\u5177\u6709\u76f8\u540c\u7684\u7528\u6237\u548c\u7ec4\u6240\u6709\u8005\u65f6\uff0c\u5176\u7c7b\u578b\u4e5f\u53ef\u80fd\u4e0d\u540c\u3002<\/p>\n<p>\u4f5c\u4e3a\u53e6\u4e00\u4e2a\u4f8b\u5b50\uff0c\u8ba9\u6211\u4eec\u68c0\u67e5\u7528\u6237\u4e3b\u76ee\u5f55\u7684\u7c7b\u578b\u4e0a\u4e0b\u6587\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">ls <\/span><span class=\"pun\">-<\/span><span class=\"pln\">Z <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">home<\/span><\/code><\/pre>\n<p>\u4e3b\u76ee\u5f55\u5c06\u6709\u4e00\u4e2a\u4e0d\u540c\u7684\u4e0a\u4e0b\u6587\u7c7b\u578b\uff1a\u00a0<strong>\u7528\u6237<em>\u4e3b<\/em>\u00a0dir_t<\/strong><\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">drwx<\/span><span class=\"pun\">------.<\/span><span class=\"pln\"> guestuser      guestuser      unconfined_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">user_home_dir_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0      guestuser\ndrwx<\/span><span class=\"pun\">------.<\/span><span class=\"pln\"> root           root           system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">lost_found_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0 lost<\/span><span class=\"pun\">+<\/span><span class=\"pln\">found\ndrwx<\/span><span class=\"pun\">------.<\/span><span class=\"pln\"> regularuser    regularuser    unconfined_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">user_home_dir_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0      regularuser\ndrwx<\/span><span class=\"pun\">------.<\/span><span class=\"pln\"> restricteduser restricteduser unconfined_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">user_home_dir_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0      restricteduser\ndrwx<\/span><span class=\"pun\">------.<\/span><span class=\"pln\"> switcheduser   switcheduser   unconfined_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">user_home_dir_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0      switcheduser\ndrwx<\/span><span class=\"pun\">------.<\/span><span class=\"pln\"> sysadmin       sysadmin       unconfined_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">user_home_dir_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0      sysadmin<\/span><\/code><\/pre>\n<p>\u5b89\u5168\u4e0a\u4e0b\u6587\u7684\u7b2c\u56db\u90e8\u5206<strong>\uff0cS0\uff0c<\/strong>\u5177\u6709<em>\u591a\u7ea7\u5b89\u5168<\/em>\u6216MLS\u505a\u3002\u00a0\u57fa\u672c\u4e0a\uff0c\u8fd9\u662f\u5b9e\u65bdSELinux\u5b89\u5168\u7b56\u7565\u7684\u53e6\u4e00\u79cd\u65b9\u5f0f\uff0c\u8fd9\u90e8\u5206\u663e\u793a\u4e86\u8d44\u6e90<strong>\uff08S0\uff09<\/strong>\u7684<em>\u7075\u654f\u5ea6<\/em>\u00a0\u3002\u00a0\u7a0d\u540e\u6211\u4eec\u5c06\u7b80\u8981\u8ba8\u8bba\u7075\u654f\u5ea6\u548c\u7c7b\u522b\u3002\u00a0\u5bf9\u4e8eSELinux\u7684\u5927\u591a\u6570\u9999\u8349\u8bbe\u7f6e\uff0c\u524d\u4e09\u4e2a\u5b89\u5168\u4e0a\u4e0b\u6587\u66f4\u91cd\u8981\u3002<\/p>\n<h3 id=\"selinux-process-contexts\">SELinux\u8fc7\u7a0b\u4e0a\u4e0b\u6587<\/h3>\n<p>\u8ba9\u6211\u4eec\u6765\u8c08\u8c08\u8fc7\u7a0b\u5b89\u5168\u4e0a\u4e0b\u6587\u3002<\/p>\n<p>\u542f\u52a8Apache\u548cSFTP\u670d\u52a1\u3002\u00a0\u6211\u4eec\u5728\u7b2c\u4e00\u4e2aSELinux\u6559\u7a0b\u4e2d\u5b89\u88c5\u4e86\u8fd9\u4e9b\u670d\u52a1\u3002<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">service httpd start\n\nservice vsftpd start<\/span><\/code><\/pre>\n<p>\u6211\u4eec\u53ef\u4ee5\u8fd0\u884c<code class=\" prettyprinted\"><span class=\"pln\">ps<\/span><\/code>\u4e0e\u51e0\u4e2a\u6807\u5fd7\uff0c\u4ee5\u663e\u793a\u6211\u4eec\u7684\u670d\u52a1\u5668\u4e0a\u8fd0\u884c\u7684Apache\u548cSFTP\u8fdb\u7a0b\u7684\u547d\u4ee4\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">ps <\/span><span class=\"pun\">-<\/span><span class=\"pln\">efZ <\/span><span class=\"pun\">|<\/span><span class=\"pln\"> grep <\/span><span class=\"str\">'httpd\\|vsftpd'<\/span><\/code><\/pre>\n<p>\u540c\u6837\uff0c-Z\u6807\u5fd7\u7528\u4e8e\u663e\u793aSELinux\u4e0a\u4e0b\u6587\u3002\u00a0\u8f93\u51fa\u663e\u793a\u8fd0\u884c\u8fdb\u7a0b\uff0c\u8fdb\u7a0bID\u548c\u7236\u8fdb\u7a0bID\u7684\u7528\u6237\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">system_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0            root        <\/span><span class=\"lit\">7126<\/span>    <span class=\"lit\">1<\/span>       <span class=\"lit\">0<\/span> <span class=\"lit\">16<\/span><span class=\"pun\">:<\/span><span class=\"lit\">50<\/span> <span class=\"pun\">?<\/span>        <span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span> <span class=\"pun\">\/<\/span><span class=\"pln\">usr<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">sbin<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">httpd <\/span><span class=\"pun\">-<\/span><span class=\"pln\">DFOREGROUND\nsystem_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">system_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0            apache      <\/span><span class=\"lit\">7127<\/span>    <span class=\"lit\">7126<\/span>    <span class=\"lit\">0<\/span> <span class=\"lit\">16<\/span><span class=\"pun\">:<\/span><span class=\"lit\">50<\/span> <span class=\"pun\">?<\/span>        <span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span> <span class=\"pun\">\/<\/span><span class=\"pln\">usr<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">sbin<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">httpd <\/span><span class=\"pun\">-<\/span><span class=\"pln\">DFOREGROUND\nsystem_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">system_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0            apache      <\/span><span class=\"lit\">7128<\/span>    <span class=\"lit\">7126<\/span>    <span class=\"lit\">0<\/span> <span class=\"lit\">16<\/span><span class=\"pun\">:<\/span><span class=\"lit\">50<\/span> <span class=\"pun\">?<\/span>        <span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span> <span class=\"pun\">\/<\/span><span class=\"pln\">usr<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">sbin<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">httpd <\/span><span class=\"pun\">-<\/span><span class=\"pln\">DFOREGROUND\nsystem_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">system_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0            apache      <\/span><span class=\"lit\">7129<\/span>    <span class=\"lit\">7126<\/span>    <span class=\"lit\">0<\/span> <span class=\"lit\">16<\/span><span class=\"pun\">:<\/span><span class=\"lit\">50<\/span> <span class=\"pun\">?<\/span>        <span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span> <span class=\"pun\">\/<\/span><span class=\"pln\">usr<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">sbin<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">httpd <\/span><span class=\"pun\">-<\/span><span class=\"pln\">DFOREGROUND\nsystem_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">system_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0            apache      <\/span><span class=\"lit\">7130<\/span>    <span class=\"lit\">7126<\/span>    <span class=\"lit\">0<\/span> <span class=\"lit\">16<\/span><span class=\"pun\">:<\/span><span class=\"lit\">50<\/span> <span class=\"pun\">?<\/span>        <span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span> <span class=\"pun\">\/<\/span><span class=\"pln\">usr<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">sbin<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">httpd <\/span><span class=\"pun\">-<\/span><span class=\"pln\">DFOREGROUND\nsystem_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">system_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0            apache      <\/span><span class=\"lit\">7131<\/span>    <span class=\"lit\">7126<\/span>    <span class=\"lit\">0<\/span> <span class=\"lit\">16<\/span><span class=\"pun\">:<\/span><span class=\"lit\">50<\/span> <span class=\"pun\">?<\/span>        <span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span> <span class=\"pun\">\/<\/span><span class=\"pln\">usr<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">sbin<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">httpd <\/span><span class=\"pun\">-<\/span><span class=\"pln\">DFOREGROUND\nsystem_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">system_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">ftpd_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0<\/span><span class=\"pun\">-<\/span><span class=\"pln\">s0<\/span><span class=\"pun\">:<\/span><span class=\"pln\">c0<\/span><span class=\"pun\">.<\/span><span class=\"pln\">c1023 root        <\/span><span class=\"lit\">7209<\/span>    <span class=\"lit\">1<\/span>       <span class=\"lit\">0<\/span> <span class=\"lit\">16<\/span><span class=\"pun\">:<\/span><span class=\"lit\">54<\/span> <span class=\"pun\">?<\/span>        <span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span> <span class=\"pun\">\/<\/span><span class=\"pln\">usr<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">sbin<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">vsftpd <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">etc<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">vsftpd<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">vsftpd<\/span><span class=\"pun\">.<\/span><span class=\"pln\">conf\nunconfined_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">unconfined_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">unconfined_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0<\/span><span class=\"pun\">-<\/span><span class=\"pln\">s0<\/span><span class=\"pun\">:<\/span><span class=\"pln\">c0<\/span><span class=\"pun\">.<\/span><span class=\"pln\">c1023 root <\/span><span class=\"lit\">7252<\/span> <span class=\"lit\">2636<\/span>  <span class=\"lit\">0<\/span> <span class=\"lit\">16<\/span><span class=\"pun\">:<\/span><span class=\"lit\">57<\/span><span class=\"pln\"> pts<\/span><span class=\"pun\">\/<\/span><span class=\"lit\">0<\/span> <span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pln\"> grep <\/span><span class=\"pun\">--<\/span><span class=\"pln\">color<\/span><span class=\"pun\">=<\/span><span class=\"kwd\">auto<\/span><span class=\"pln\"> httpd\\|vsftpd<\/span><\/code><\/pre>\n<p>\u5b89\u5168\u4e0a\u4e0b\u6587\u662f\u8fd9\u90e8\u5206\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">system_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0<\/span><\/code><\/pre>\n<p>\u5b89\u5168\u4e0a\u4e0b\u6587\u6709\u56db\u4e2a\u90e8\u5206\uff1a\u7528\u6237\uff0c\u89d2\u8272\uff0c\u57df\u548c\u654f\u611f\u6027\u3002\u00a0\u7528\u6237\uff0c\u89d2\u8272\u548c\u654f\u611f\u6027\u5c31\u50cf\u6587\u4ef6\u7684\u76f8\u540c\u4e0a\u4e0b\u6587\u4e00\u6837\u5de5\u4f5c\uff08\u5728\u4e0a\u4e00\u8282\u4e2d\u89e3\u91ca\uff09\u3002\u00a0\u57df\u662f\u8fdb\u7a0b\u72ec\u6709\u7684\u3002<\/p>\n<p>\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0c\u51e0\u4e2a\u8fdb\u7a0b\u5728<strong>httpd_t<\/strong>\u57df\u5185\u8fd0\u884c\uff0c\u800c\u4e00\u4e2a\u662f<strong>ftpd_t<\/strong>\u57df\u5185\u8fd0\u884c\u3002<\/p>\n<p>\u90a3\u4e48\uff0c\u57df\u4e3a\u6d41\u7a0b\u505a\u4ec0\u4e48\uff1f\u00a0\u5b83\u7ed9\u8fdb\u7a0b\u4e00\u4e2a\u5728\u5176\u4e2d\u8fd0\u884c\u7684\u4e0a\u4e0b\u6587\u3002\u00a0\u8fd9\u5c31\u50cf\u5468\u56f4\u7684<em>\u5730\u9650\u5236<\/em>\u5b83\u7684\u8fdb\u7a0b\u6ce1\u6cab\u3002\u00a0\u5b83\u544a\u8bc9\u8fc7\u7a0b\u5b83\u53ef\u4ee5\u505a\u4ec0\u4e48\u548c\u5b83\u4e0d\u80fd\u505a\u4ec0\u4e48\u3002\u00a0\u8fd9\u4e2a\u9650\u5236\u786e\u4fdd\u6bcf\u4e2a\u8fdb\u7a0b\u57df\u53ea\u80fd\u5904\u7406\u67d0\u4e9b\u7c7b\u578b\u7684\u6587\u4ef6\uff0c\u6ca1\u6709\u66f4\u591a\u3002<\/p>\n<p>\u4f7f\u7528\u8fd9\u4e2a\u6a21\u578b\uff0c\u5373\u4f7f\u4e00\u4e2a\u8fdb\u7a0b\u88ab\u53e6\u4e00\u4e2a\u6076\u610f\u8fdb\u7a0b\u6216\u7528\u6237\u52ab\u6301\uff0c\u5b83\u53ef\u4ee5\u505a\u7684\u6700\u7cdf\u7cd5\u7684\u4e8b\u60c5\u662f\u635f\u574f\u5b83\u8bbf\u95ee\u7684\u6587\u4ef6\u3002\u4f8b\u5982\uff0cvsftp\u5b88\u62a4\u7a0b\u5e8f\u5c06\u65e0\u6743\u8bbf\u95eesay\uff0csendmail\u6216samba\u4f7f\u7528\u7684\u6587\u4ef6\u3002\u00a0\u6b64\u9650\u5236\u662f\u4ece\u5185\u6838\u7ea7\u5b9e\u73b0\u7684\uff1a\u5b83\u662f\u6267\u884c\u4f5c\u4e3aSELinux\u7b56\u7565\u52a0\u8f7d\u5230\u5b58\u50a8\u5668\u4e2d\uff0c\u5e76\u56e0\u6b64\u8bbf\u95ee\u63a7\u5236\u6210\u4e3a<em>\u5fc5\u9700<\/em>\u00a0\u3002<\/p>\n<h2 id=\"naming-conventions\">\u547d\u540d\u7ea6\u5b9a<\/h2>\n<p>\u5728\u6211\u4eec\u518d\u8fdb\u4e00\u6b65\u4e4b\u524d\uff0c\u8fd9\u91cc\u6709\u4e00\u4e2a\u5173\u4e8eSELinux\u547d\u540d\u7ea6\u5b9a\u7684\u6ce8\u91ca\u3002\u00a0SELinux\u7684\u7528\u6237\u7531<em>\u201cU\u201d<\/em>\u4e3aStapling<em>\uff0c\u89d2\u8272\u7531\u201cr\u201d<\/em>\u548c\u7c7b\u578b\uff08\u6587\u4ef6\uff09\u6216\u57df\uff08\u8fdb\u7a0b\uff09\u901a\u8fc7<em>Stapling<\/em>\u00a0\u201c_t\u201dStapling\u3002<\/p>\n<h2 id=\"how-processes-access-resources\">\u5982\u4f55\u5904\u7406\u8bbf\u95ee\u8d44\u6e90<\/h2>\n<p>\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u6211\u4eec\u5df2\u7ecf\u770b\u5230\u6587\u4ef6\u548c\u8fdb\u7a0b\u53ef\u4ee5\u5177\u6709\u4e0d\u540c\u7684\u4e0a\u4e0b\u6587\uff0c\u5e76\u4e14\u5b83\u4eec\u4ec5\u9650\u4e8e\u5b83\u4eec\u81ea\u5df1\u7684\u7c7b\u578b\u6216\u57df\u3002\u00a0\u90a3\u4e48\u8fdb\u7a0b\u5982\u4f55\u8fd0\u884c\uff1f\u00a0\u8981\u8fd0\u884c\uff0c\u8fdb\u7a0b\u9700\u8981\u8bbf\u95ee\u5176\u6587\u4ef6\u5e76\u5bf9\u5176\u6267\u884c\u4e00\u4e9b\u64cd\u4f5c\uff08\u6253\u5f00\uff0c\u8bfb\u53d6\uff0c\u4fee\u6539\u6216\u6267\u884c\uff09\u3002\u00a0\u6211\u4eec\u8fd8\u4e86\u89e3\u5230\u6bcf\u4e2a\u8fdb\u7a0b\u53ea\u80fd\u8bbf\u95ee\u67d0\u4e9b\u7c7b\u578b\u7684\u8d44\u6e90\uff08\u6587\u4ef6\uff0c\u76ee\u5f55\uff0c\u7aef\u53e3\u7b49\uff09\u3002<\/p>\n<p>SELinux\u5728\u7b56\u7565\u4e2d\u89c4\u5b9a\u8fd9\u4e9b\u8bbf\u95ee\u89c4\u5219\u3002\u00a0\u8bbf\u95ee\u89c4\u5219\u9075\u5faa\u6807\u51c6<em>\u5141\u8bb8\u58f0\u660e<\/em>\u7ed3\u6784\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">allow <\/span><span class=\"str\">&lt;domain&gt;<\/span> <span class=\"str\">&lt;type&gt;<\/span><span class=\"pun\">:&lt;<\/span><span class=\"kwd\">class<\/span><span class=\"pun\">&gt;<\/span> <span class=\"pun\">{<\/span> <span class=\"str\">&lt;permissions&gt;<\/span> <span class=\"pun\">};<\/span><\/code><\/pre>\n<p>\u6211\u4eec\u5df2\u7ecf\u8c08\u5230\u4e86\u57df\u548c\u7c7b\u578b\u3002\u00a0<strong>\u7c7b<\/strong>\u5b9a\u4e49\u4e86\u8d44\u6e90\u5b9e\u9645\u4e0a\u4ee3\u8868\uff08\u6587\u4ef6\uff0c\u76ee\u5f55\uff0c\u7b26\u53f7\u94fe\u63a5\uff0c\u8bbe\u5907\uff0c\u6e2f\u53e3\uff0c\u5149\u6807\u7b49\uff09<\/p>\n<p>\u4e0b\u9762\u662f\u8fd9\u4e2a\u6cdb\u578b\u5141\u8bb8\u8bed\u53e5\u7684\u542b\u4e49\uff1a<\/p>\n<ul>\n<li>\u5982\u679c\u4e00\u4e2a\u8fdb\u7a0b\u6709\u4e00\u5b9a\u7684\u57df<\/li>\n<li>\u5b83\u8bd5\u56fe\u8bbf\u95ee\u7684\u8d44\u6e90\u5bf9\u8c61\u662f\u67d0\u79cd\u7c7b\u548c\u7c7b\u578b<\/li>\n<li>\u7136\u540e\u5141\u8bb8\u8bbf\u95ee<\/li>\n<li>\u5426\u5219\u62d2\u7edd\u8bbf\u95ee<\/li>\n<\/ul>\n<p>\u4e3a\u4e86\u770b\u770b\u8fd9\u662f\u5982\u4f55\u5de5\u4f5c\u7684\uff0c\u8ba9\u6211\u4eec\u8003\u8651\u5728\u6211\u4eec\u7684CentOS 7\u7cfb\u7edf\u4e0a\u8fd0\u884c\u7684httpd\u5b88\u62a4\u8fdb\u7a0b\u7684\u5b89\u5168\u4e0a\u4e0b\u6587\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">system_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0     <\/span><span class=\"lit\">7126<\/span> <span class=\"pun\">?<\/span>        <span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pln\"> httpd\nsystem_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">system_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0     <\/span><span class=\"lit\">7127<\/span> <span class=\"pun\">?<\/span>        <span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pln\"> httpd\nsystem_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">system_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0     <\/span><span class=\"lit\">7128<\/span> <span class=\"pun\">?<\/span>        <span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pln\"> httpd\nsystem_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">system_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0     <\/span><span class=\"lit\">7129<\/span> <span class=\"pun\">?<\/span>        <span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pln\"> httpd\nsystem_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">system_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0     <\/span><span class=\"lit\">7130<\/span> <span class=\"pun\">?<\/span>        <span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pln\"> httpd\nsystem_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">system_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0     <\/span><span class=\"lit\">7131<\/span> <span class=\"pun\">?<\/span>        <span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pln\"> httpd<\/span><\/code><\/pre>\n<p>Web\u670d\u52a1\u5668\u7684\u9ed8\u8ba4\u4e3b\u76ee\u5f55\u662f<code class=\" prettyprinted\"><span class=\"str\">\/var\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">html<\/span><\/code>\u00a0\u3002\u00a0\u8ba9\u6211\u4eec\u5728\u8be5\u76ee\u5f55\u4e2d\u521b\u5efa\u4e00\u4e2a\u6587\u4ef6\u5e76\u68c0\u67e5\u5176\u4e0a\u4e0b\u6587\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">touch <\/span><span class=\"pun\">\/<\/span><span class=\"kwd\">var<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">html<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html\n\nls <\/span><span class=\"pun\">-<\/span><span class=\"pln\">Z <\/span><span class=\"pun\">\/<\/span><span class=\"kwd\">var<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">html<\/span><span class=\"com\">\/*<\/span><\/code><\/pre>\n<p>\u5bf9\u4e8e\u6211\u4eec\u7684Web\u5185\u5bb9\u7684\u6587\u4ef6\u4e0a\u4e0b\u6587\u5c06\u88ab<strong><em>SYS<\/em>\u7684httpd content_t\uff1a<\/strong><\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pun\">-<\/span><span class=\"pln\">rw<\/span><span class=\"pun\">-<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--.<\/span><span class=\"pln\"> root root unconfined_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_sys_content_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0 <\/span><span class=\"pun\">\/<\/span><span class=\"kwd\">var<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">html<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html<\/span><\/code><\/pre>\n<p>\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528<code class=\" prettyprinted\"><span class=\"pln\">sesearch<\/span><\/code>\u547d\u4ee4\u68c0\u67e5\u5141\u8bb8httpd\u5b88\u62a4\u8fdb\u7a0b\u7684\u8bbf\u95ee\u7c7b\u578b\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">sesearch <\/span><span class=\"pun\">--<\/span><span class=\"pln\">allow <\/span><span class=\"pun\">--<\/span><span class=\"pln\">source <\/span><span class=\"typ\">httpd_t<\/span> <span class=\"pun\">--<\/span><span class=\"pln\">target <\/span><span class=\"typ\">httpd_sys_content_t<\/span> <span class=\"pun\">--<\/span><span class=\"kwd\">class<\/span><span class=\"pln\"> file<\/span><\/code><\/pre>\n<p>\u4f7f\u7528\u547d\u4ee4\u4f7f\u7528\u7684\u6807\u5fd7\u662f\u76f8\u5f53\u4e0d\u8a00\u81ea\u660e\uff1a\u6e90\u57df\u662f<strong>httpd_t\uff0cApache<\/strong>\u662f\u8fd0\u884c\u5728\u540c\u4e00\u4e2a\u57df\u4e2d\u6211\u4eec\u6709\u5174\u8da3\u6709\u5173\u7684\u6587\u4ef6\u548c\u5fc5\u987b<strong>\u7684httpd\u00a0<em>SYS<\/em>\u00a0content_t<\/strong>\u7684\u7c7b\u578b\u8303\u56f4\u5185\u7684\u76ee\u6807\u8d44\u6e90\u3002\u00a0\u60a8\u7684\u8f93\u51fa\u5e94\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"typ\">Found<\/span> <span class=\"lit\">4<\/span><span class=\"pln\"> semantic av rules<\/span><span class=\"pun\">:<\/span><span class=\"pln\">\n   allow <\/span><span class=\"typ\">httpd_t<\/span> <span class=\"typ\">httpd_sys_content_t<\/span> <span class=\"pun\">:<\/span><span class=\"pln\"> file <\/span><span class=\"pun\">{<\/span><span class=\"pln\"> ioctl read getattr <\/span><span class=\"kwd\">lock<\/span><span class=\"pln\"> open <\/span><span class=\"pun\">}<\/span> <span class=\"pun\">;<\/span><span class=\"pln\">\n   allow <\/span><span class=\"typ\">httpd_t<\/span><span class=\"pln\"> httpd_content_type <\/span><span class=\"pun\">:<\/span><span class=\"pln\"> file <\/span><span class=\"pun\">{<\/span><span class=\"pln\"> ioctl read getattr <\/span><span class=\"kwd\">lock<\/span><span class=\"pln\"> open <\/span><span class=\"pun\">}<\/span> <span class=\"pun\">;<\/span><span class=\"pln\">\n   allow <\/span><span class=\"typ\">httpd_t<\/span><span class=\"pln\"> httpd_content_type <\/span><span class=\"pun\">:<\/span><span class=\"pln\"> file <\/span><span class=\"pun\">{<\/span><span class=\"pln\"> ioctl read getattr <\/span><span class=\"kwd\">lock<\/span><span class=\"pln\"> open <\/span><span class=\"pun\">}<\/span> <span class=\"pun\">;<\/span><span class=\"pln\">\n   allow <\/span><span class=\"typ\">httpd_t<\/span><span class=\"pln\"> httpdcontent <\/span><span class=\"pun\">:<\/span><span class=\"pln\"> file <\/span><span class=\"pun\">{<\/span><span class=\"pln\"> ioctl read write create getattr setattr <\/span><span class=\"kwd\">lock<\/span><span class=\"pln\"> append unlink link rename execute open <\/span><span class=\"pun\">}<\/span> <span class=\"pun\">;<\/span><\/code><\/pre>\n<p>\u6ce8\u610f\u7b2c\u4e00\u884c\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">allow <\/span><span class=\"typ\">httpd_t<\/span> <span class=\"typ\">httpd_sys_content_t<\/span> <span class=\"pun\">:<\/span><span class=\"pln\"> file <\/span><span class=\"pun\">{<\/span><span class=\"pln\"> ioctl read getattr <\/span><span class=\"kwd\">lock<\/span><span class=\"pln\"> open <\/span><span class=\"pun\">}<\/span> <span class=\"pun\">;<\/span><\/code><\/pre>\n<p>\u8fd9\u662f\u8bf4httpd\u5b88\u62a4\u8fdb\u7a0b\uff08Apache Web\u670d\u52a1\u5668\uff09\u7684I \/ O\u63a7\u5236\uff0c\u8bfb\u53d6\uff0c\u83b7\u5f97\u5c5e\u6027\uff0c\u9501\u5b9a\u548c\u5f00\u653e\u63a5\u5165\u5230<strong>httpd\u00a0<em>SYS<\/em>\u5185\u5bb9<\/strong>\u7c7b\u578b\u7684\u6587\u4ef6\u3002\u00a0\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec<code class=\" prettyprinted\"><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html<\/span><\/code>\u6587\u4ef6\u5177\u6709\u76f8\u540c\u7684\u7c7b\u578b\u3002<\/p>\n<p>\u5f80\u524d\u4e00\u6b65\uff0c\u8ba9\u6211\u4eec\u5148\u4fee\u6539\u7f51\u9875\uff08\u00a0<code class=\" prettyprinted\"><span class=\"str\">\/var\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">html<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html<\/span><\/code>\u00a0\uff09\u3002\u00a0\u7f16\u8f91\u6587\u4ef6\u4ee5\u5305\u542b\u6b64\u5185\u5bb9\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"tag\">&lt;html&gt;<\/span>\n    <span class=\"tag\">&lt;title&gt;<\/span><span class=\"pln\">\n        This is a test web page\n    <\/span><span class=\"tag\">&lt;\/title&gt;<\/span>\n    <span class=\"tag\">&lt;body&gt;<\/span>\n        <span class=\"tag\">&lt;h1&gt;<\/span><span class=\"pln\">This is a test web page<\/span><span class=\"tag\">&lt;\/h1&gt;<\/span>\n    <span class=\"tag\">&lt;\/body&gt;<\/span>\n<span class=\"tag\">&lt;\/html&gt;<\/span><\/code><\/pre>\n<p>\u4e0b\u4e00\u6b65\uff0c\u6211\u4eec\u5c06\u6539\u53d8\u8bb8\u53ef<code class=\" prettyprinted\"><span class=\"str\">\/var\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><\/code>\u6587\u4ef6\u5939\u53ca\u5176\u5185\u5bb9\uff0c\u5176\u6b21\u662fhttpd\u5b88\u62a4\u8fdb\u7a0b\u7684\u91cd\u65b0\u542f\u52a8\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">chmod <\/span><span class=\"pun\">-<\/span><span class=\"pln\">R <\/span><span class=\"lit\">755<\/span> <span class=\"pun\">\/<\/span><span class=\"kwd\">var<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">www<\/span><\/code><\/pre>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">service httpd restart<\/span><\/code><\/pre>\n<p>\u6211\u4eec\u5c06\u5c1d\u8bd5\u4ece\u6d4f\u89c8\u5668\u8bbf\u95ee\u5b83\uff1a<\/p>\n<p><img decoding=\"async\" class=\"td-animation-stack-type0-1\" src=\"http:\/\/www.howtoing.com\/wp-content\/uploads\/articles\/SELinuxCentOS7\/2.jpg\" alt=\"\u4f7f\u7528\u6b63\u786e\u7684SELiunux\u8bbe\u7f6e\u8bbf\u95ee\u7f51\u9875\" \/><\/p>\n<blockquote><p><strong>\u6ce8\u610f<\/strong><br \/>\n\u6839\u636e\u670d\u52a1\u5668\u7684\u8bbe\u7f6e\uff0c\u60a8\u53ef\u80fd\u5fc5\u987b\u5728IPTABLES\u9632\u706b\u5899\u4e2d\u542f\u7528\u7aef\u53e380\uff0c\u4ee5\u5141\u8bb8\u6765\u81ea\u670d\u52a1\u5668\u5916\u90e8\u7684\u4f20\u5165HTTP\u6d41\u91cf\u3002\u00a0\u6211\u4eec\u4e0d\u4f1a\u5728\u8fd9\u91cc\u4ecb\u7ecd\u5728IPTABLES\u4e2d\u542f\u7528\u7aef\u53e3\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u00a0\u6709\u4e00\u4e9b\u4f18\u79c0\u7684DIGITALOCEAN\u00a0<a href=\"http:\/\/www.howtoing.com\/how-to-set-up-a-firewall-using-iptables-on-ubuntu-14-04\/\">\u6587\u7ae0<\/a>\u53ef\u4ee5\u5728\u5176\u4e0a\u4f7f\u7528\u7684\u8bdd\u9898\u3002<\/p><\/blockquote>\n<p>\u5230\u73b0\u5728\u4e3a\u6b62\u8fd8\u633a\u597d\u3002\u00a0httpd\u5b88\u62a4\u7a0b\u5e8f\u6709\u6743\u8bbf\u95ee\u7279\u5b9a\u7c7b\u578b\u7684\u6587\u4ef6\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u901a\u8fc7\u6d4f\u89c8\u5668\u8bbf\u95ee\u65f6\u770b\u5230\u5b83\u3002\u00a0\u63a5\u4e0b\u6765\uff0c\u8ba9\u6211\u4eec\u901a\u8fc7\u6539\u53d8\u6587\u4ef6\u7684\u4e0a\u4e0b\u6587\u6765\u6539\u53d8\u4e00\u4e9b\u4e1c\u897f\u3002\u00a0\u6211\u4eec\u5c06\u4f7f\u7528<code class=\" prettyprinted\"><span class=\"pln\">chcon<\/span><\/code>\u547d\u4ee4\u5427\u3002\u00a0\u8be5<code class=\" prettyprinted\"><span class=\"pun\">--<\/span><span class=\"pln\">type<\/span><\/code>\u4e3a\u547d\u4ee4\u6807\u5fd7\u5141\u8bb8\u6211\u4eec\u6307\u5b9a\u76ee\u6807\u8d44\u6e90\u7684\u65b0\u7c7b\u578b\u3002\u00a0\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u6b63\u5728\u6539\u53d8\u6587\u4ef6\u7c7b\u578b<strong>var_t\u3002<\/strong><\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">chcon <\/span><span class=\"pun\">--<\/span><span class=\"pln\">type <\/span><span class=\"typ\">var_t<\/span> <span class=\"pun\">\/<\/span><span class=\"kwd\">var<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">html<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html<\/span><\/code><\/pre>\n<p>\u6211\u4eec\u53ef\u4ee5\u786e\u8ba4\u7c7b\u578b\u66f4\u6539\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">ls <\/span><span class=\"pun\">-<\/span><span class=\"pln\">Z <\/span><span class=\"pun\">\/<\/span><span class=\"kwd\">var<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">html<\/span><span class=\"pun\">\/<\/span><\/code><\/pre>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pun\">-<\/span><span class=\"pln\">rwxr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">xr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">x<\/span><span class=\"pun\">.<\/span><span class=\"pln\"> root root unconfined_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">var_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0   index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html<\/span><\/code><\/pre>\n<p>\u63a5\u4e0b\u6765\uff0c\u5f53\u6211\u4eec\u8bd5\u56fe\u8bbf\u95ee\u7f51\u9875\uff08\u5373httpd\u5b88\u62a4\u8fdb\u7a0b\u8bd5\u56fe\u8bfb\u53d6\u8be5\u6587\u4ef6\uff09\uff0c\u4f60\u53ef\u80fd\u4f1a\u5f97\u5230\u4e00\u4e2a<strong>\u7981\u6b62<\/strong>\u9519\u8bef\uff0c\u6216\u8005\u60a8\u53ef\u80fd\u4f1a\u770b\u5230\u901a\u7528CentOS\u7684\u201c\u6d4b\u8bd5123\u201d\u9875\u9762\uff1a<\/p>\n<p><img decoding=\"async\" class=\"td-animation-stack-type0-1\" src=\"http:\/\/www.howtoing.com\/wp-content\/uploads\/articles\/SELinuxCentOS7\/3.jpg\" alt=\"\u4f7f\u7528\u4e0d\u6b63\u786e\u7684SELinux\u8bbe\u7f6e\u8bbf\u95ee\u7f51\u9875\" \/><\/p>\n<p>\u90a3\u4e48\u8fd9\u91cc\u53d1\u751f\u4e86\u4ec0\u4e48\uff1f\u00a0\u663e\u7136\u4e00\u4e9b\u8bbf\u95ee\u73b0\u5728\u88ab\u62d2\u7edd\uff0c\u4f46\u5b83\u7684\u8bbf\u95ee\u662f\u4ec0\u4e48\uff1f\u00a0\u81f3\u4e8eSELinux\u7684\u800c\u8a00\uff0cWeb\u670d\u52a1\u5668\u88ab\u6388\u6743\u8bbf\u95ee\u4ec5\u67d0\u4e9b\u7c7b\u578b\u7684\u6587\u4ef6\u548c\u53d8\u79cd<em>t\u4e0d\u8fd9\u4e9b\u4e0a\u4e0b\u6587\u4e2d\u7684\u4e00\u4e2a\u3002<\/em>\u00a0<em>\u65e2\u7136\u6211\u4eec\u6539\u53d8\u4e86index.html\u6587\u4ef6\u4e3aVAR T\u7684\u80cc\u666f\u4e0b<\/em>\u00a0\uff0cApache\u53ef\u4ee5\u4e0d\u518d\u8bfb\u5b83\uff0c\u6211\u4eec\u5f97\u5230\u4e00\u4e2a\u9519\u8bef\u3002<\/p>\n<p>\u4e3a\u4e86\u8ba9\u4e8b\u60c5\u518d\u6b21\u5408\u4f5c\uff0c\u8ba9\u6211\u4eec\u6539\u53d8\u7684\u6587\u4ef6\u7c7b\u578b<code class=\" prettyprinted\"><span class=\"pln\">restorecon<\/span><\/code>\u547d\u4ee4\u3002\u00a0-v\u5f00\u5173\u663e\u793a\u4e0a\u4e0b\u6587\u6807\u7b7e\u7684\u66f4\u6539\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">restorecon <\/span><span class=\"pun\">-<\/span><span class=\"pln\">v <\/span><span class=\"pun\">\/<\/span><span class=\"kwd\">var<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">html<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html<\/span><\/code><\/pre>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">restorecon reset <\/span><span class=\"pun\">\/<\/span><span class=\"kwd\">var<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">html<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html context unconfined_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">var_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0<\/span><span class=\"pun\">-&gt;<\/span><span class=\"pln\">unconfined_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_sys_content_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0<\/span><\/code><\/pre>\n<p>\u5982\u679c\u6211\u4eec\u73b0\u5728\u5c1d\u8bd5\u8bbf\u95ee\u8be5\u9875\u9762\uff0c\u5b83\u5c06\u518d\u6b21\u663e\u793a\u6211\u4eec\u7684\u201c\u8fd9\u662f\u4e00\u4e2a\u6d4b\u8bd5\u7f51\u9875\u201d\u6587\u672c\u3002<\/p>\n<p>\u8fd9\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u6982\u5ff5\u8981\u7406\u89e3\uff1a\u786e\u4fdd\u6587\u4ef6\u548c\u76ee\u5f55\u6709\u6b63\u786e\u7684\u4e0a\u4e0b\u6587\u662f\u786e\u4fddSELinux\u884c\u4e3a\u5e94\u8be5\u662f\u5173\u952e\u3002\u00a0\u6211\u4eec\u5c06\u5728\u672c\u8282\u7ed3\u5c3e\u5904\u770b\u5230\u4e00\u4e2a\u5b9e\u9645\u7684\u7528\u4f8b\uff0c\u4f46\u5728\u6b64\u4e4b\u524d\uff0c\u8ba9\u6211\u4eec\u518d\u8c08\u8c08\u4e00\u4e9b\u4e8b\u60c5\u3002<\/p>\n<h2 id=\"context-inheritance-for-files-and-directories\">\u6587\u4ef6\u548c\u76ee\u5f55\u7684\u4e0a\u4e0b\u6587\u7ee7\u627f<\/h2>\n<p>SELinux\u5f3a\u5236\u6267\u884c\u6211\u4eec\u53ef\u4ee5\u79f0\u4e3a\u201c\u4e0a\u4e0b\u6587\u7ee7\u627f\u201d\u7684\u4e1c\u897f\u3002\u00a0\u8fd9\u610f\u5473\u7740\u9664\u975e\u7b56\u7565\u6307\u5b9a\uff0c\u8fc7\u7a0b\u548c\u6587\u4ef6\u662f\u4f7f\u7528\u7236\u5bf9\u8c61\u7684\u4e0a\u4e0b\u6587\u521b\u5efa\u7684\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u5982\u679c\u6211\u4eec\u6709\u4e00\u4e2a\u8fc7\u7a0b\u79f0\u4e3a\u201cPROC\u00a0<em>A\u201d\u4ea7\u5375\u540d\u4e3a\u201cPROC B\u201danoher\u8fc7\u7a0b\u4e2d<\/em>\u00a0\uff0c\u751f\u6210\u7684\u8fdb\u7a0b\u5c06\u5728\u540c\u4e00\u4e2a\u57df\u4e2d\u201cproc_a\u201d\u9664\u975eSELinux\u7b56\u7565\u53e6\u6709\u89c4\u5b9a\u6267\u884c\u3002<\/p>\n<p>\u540c\u6837\uff0c\u5982\u679c\u6211\u4eec\u6709\u4e00\u4e2a\u7c7b\u578b\u7684\u201c\u4e00\u4e9b<em>\u80cc\u666f<\/em>\u00a0T\u201d\u7684\u76ee\u5f55\uff0c\u4e0b\u521b\u5efa\u7684\u4efb\u4f55\u6587\u4ef6\u6216\u76ee\u5f55\uff0c\u9664\u975e\u5c06\u653f\u7b56\u8bf4\uff0c\u5426\u5219\u6709\u76f8\u540c\u7c7b\u578b\u7684\u4e0a\u4e0b\u6587\u3002<\/p>\n<p>\u4e3a\u4e86\u8bf4\u660e\u8fd9\u4e00\u70b9\uff0c\u8ba9\u6211\u4eec\u68c0\u67e5\u7684\u80cc\u666f\u4e0b<code class=\" prettyprinted\"><span class=\"str\">\/var\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><\/code>\u76ee\u5f55\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">ls <\/span><span class=\"pun\">-<\/span><span class=\"pln\">Z <\/span><span class=\"pun\">\/<\/span><span class=\"kwd\">var<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">www<\/span><\/code><\/pre>\n<p>\u5728<code class=\" prettyprinted\"><span class=\"pln\">html<\/span><\/code>\u4e2d\u7684\u76ee\u5f55<code class=\" prettyprinted\"><span class=\"str\">\/var\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><\/code>\u6709<strong>httpd\u7684<em>SYS<\/em>\u00a0content_t<\/strong>\u7c7b\u578b\u7684\u4e0a\u4e0b\u6587\u3002\u00a0\u6b63\u5982\u6211\u4eec\u524d\u9762\u6240\u770b\u5230\u7684\uff0c\u00a0<code class=\" prettyprinted\"><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html<\/span><\/code>\u5728\u5b83\u7684\u6587\u4ef6\u5177\u6709\u76f8\u540c\u80cc\u666f\u4e0b\uff08\u5373\u7236\u7684\u4e0a\u4e0b\u6587\u4e2d\uff09\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">drwxr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">xr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">x<\/span><span class=\"pun\">.<\/span><span class=\"pln\"> root root system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_sys_script_exec_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0 cgi<\/span><span class=\"pun\">-<\/span><span class=\"pln\">bin\ndrwxr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">xr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">x<\/span><span class=\"pun\">.<\/span><span class=\"pln\"> root root system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_sys_content_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0 html<\/span><\/code><\/pre>\n<p>\u5c06\u6587\u4ef6\u590d\u5236\u5230\u5176\u4ed6\u4f4d\u7f6e\u65f6\uff0c\u4e0d\u4f1a\u4fdd\u7559\u6b64\u7ee7\u627f\u3002\u00a0\u5728\u590d\u5236\u64cd\u4f5c\u4e2d\uff0c\u590d\u5236\u7684\u6587\u4ef6\u6216\u76ee\u5f55\u5c06\u91c7\u7528\u76ee\u6807\u4f4d\u7f6e\u7684\u7c7b\u578b\u4e0a\u4e0b\u6587\u3002\u00a0\u5728\u4e0b\u9762\u7684\u4ee3\u7801\u7247\u6bb5\u4e2d\uff0c\u6211\u4eec\u590d\u5236<code class=\" prettyprinted\"><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html<\/span><\/code>\u6587\u4ef6\uff08\u201chttpd\u7684<em>SYS<\/em>\u00a0content_t\u201d\u7c7b\u578b\u7684\u4e0a\u4e0b\u6587\u4e2d\uff09\u5230<code class=\" prettyprinted\"><span class=\"str\">\/var\/<\/span><\/code>\u76ee\u5f55\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">cp <\/span><span class=\"pun\">\/<\/span><span class=\"kwd\">var<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">html<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html <\/span><span class=\"pun\">\/<\/span><span class=\"kwd\">var<\/span><span class=\"pun\">\/<\/span><\/code><\/pre>\n<p>\u5982\u679c\u6211\u4eec\u68c0\u67e5\u590d\u5236\u7684\u6587\u4ef6\u7684\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u5c06\u770b\u5230\u5b83\u5df2\u66f4\u6539\u4e3a<strong>var_t\uff0c<\/strong>\u5176\u5f53\u524d\u7684\u7236\u76ee\u5f55\u7684\u80cc\u666f\u4e0b\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">ls <\/span><span class=\"pun\">-<\/span><span class=\"pln\">Z <\/span><span class=\"pun\">\/<\/span><span class=\"kwd\">var<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html<\/span><\/code><\/pre>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pun\">-<\/span><span class=\"pln\">rwxr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">xr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">x<\/span><span class=\"pun\">.<\/span><span class=\"pln\"> root root unconfined_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">var_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0   <\/span><span class=\"pun\">\/<\/span><span class=\"kwd\">var<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html<\/span><\/code><\/pre>\n<p>\u4e0a\u4e0b\u6587\u7684\u8fd9\u79cd\u53d8\u5316\u53ef\u4ee5\u901a\u8fc7\u8986\u76d6<code class=\" prettyprinted\"><span class=\"pun\">--<\/span><span class=\"pln\">preserver<\/span><span class=\"pun\">=<\/span><span class=\"pln\">context<\/span><\/code>\u4e2d\u7684\u6761\u6b3e<code class=\" prettyprinted\"><span class=\"pln\">cp<\/span><\/code>\u547d\u4ee4\u3002<\/p>\n<p>\u79fb\u52a8\u6587\u4ef6\u6216\u76ee\u5f55\u65f6\uff0c\u5c06\u4fdd\u7559\u539f\u59cb\u4e0a\u4e0b\u6587\u3002\u00a0\u5728\u4e0b\u9762\u7684\u547d\u4ee4\uff0c\u6211\u4eec\u6b63\u5728\u79fb\u52a8<code class=\" prettyprinted\"><span class=\"str\">\/var\/<\/span><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html<\/span><\/code>\u5230<code class=\" prettyprinted\"><span class=\"str\">\/etc\/<\/span><\/code>\u76ee\u5f55\u4e0b\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">mv  <\/span><span class=\"pun\">\/<\/span><span class=\"kwd\">var<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html  <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">etc<\/span><span class=\"pun\">\/<\/span><\/code><\/pre>\n<p>\u5f53\u6211\u4eec\u68c0\u67e5\u79fb\u52a8\u6587\u4ef6\u7684\u80cc\u666f\u4e0b\uff0c\u6211\u4eec\u770b\u5230<strong>var_t<\/strong>\u65b9\u9762\u5df2\u7ecf\u4e0b\u4fdd\u5b58<code class=\" prettyprinted\"><span class=\"str\">\/etc\/<\/span><\/code>\u76ee\u5f55\u4e0b\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">ls <\/span><span class=\"pun\">-<\/span><span class=\"pln\">Z <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">etc<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html<\/span><\/code><\/pre>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pun\">-<\/span><span class=\"pln\">rwxr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">xr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">x<\/span><span class=\"pun\">.<\/span><span class=\"pln\"> root root unconfined_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">var_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0   <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">etc<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html<\/span><\/code><\/pre>\n<p>\u90a3\u4e48\u4e3a\u4ec0\u4e48\u6211\u4eec\u8fd9\u4e48\u5173\u5fc3\u6587\u4ef6\u4e0a\u4e0b\u6587\uff1f\u00a0\u4e3a\u4ec0\u4e48\u8fd9\u4e2a\u590d\u5236\u548c\u79fb\u52a8\u7684\u6982\u5ff5\u5f88\u91cd\u8981\uff1f\u00a0\u60f3\u60f3\u5427\uff1a\u4e5f\u8bb8\u4f60\u51b3\u5b9a\u628a\u6240\u6709\u7684\u7f51\u7edc\u670d\u52a1\u5668\u7684HTML\u6587\u4ef6\u590d\u5236\u5230\u6839\u6587\u4ef6\u5939\u4e0b\u7684\u4e00\u4e2a\u5355\u72ec\u7684\u76ee\u5f55\u3002\u00a0\u60a8\u5df2\u7ecf\u505a\u5230\u8fd9\u4e00\u70b9\uff0c\u4ee5\u7b80\u5316\u60a8\u7684\u5907\u4efd\u8fc7\u7a0b\uff0c\u5e76\u6536\u7d27\u5b89\u5168\u6027\uff1a\u60a8\u4e0d\u5e0c\u671b\u4efb\u4f55\u9ed1\u5ba2\u8f7b\u677e\u731c\u5230\u60a8\u7684\u7f51\u7ad9\u7684\u6587\u4ef6\u7684\u4f4d\u7f6e\u3002\u00a0\u60a8\u5df2\u66f4\u65b0\u76ee\u5f55\u7684\u8bbf\u95ee\u63a7\u5236\uff0c\u66f4\u6539\u4e86Web\u914d\u7f6e\u6587\u4ef6\u4ee5\u6307\u5411\u65b0\u4f4d\u7f6e\uff0c\u91cd\u65b0\u542f\u52a8\u670d\u52a1\uff0c\u4f46\u5b83\u4ecd\u7136\u4e0d\u5de5\u4f5c\u3002\u00a0\u4e5f\u8bb8\u4f60\u53ef\u4ee5\u67e5\u770b\u76ee\u5f55\u53ca\u5176\u6587\u4ef6\u7684\u4e0a\u4e0b\u6587\u4f5c\u4e3a\u4e0b\u4e00\u4e2a\u6545\u969c\u6392\u9664\u6b65\u9aa4\u3002\u00a0\u8ba9\u6211\u4eec\u8fd0\u884c\u5b83\u4f5c\u4e3a\u4e00\u4e2a\u5b9e\u9645\u7684\u4f8b\u5b50\u3002<\/p>\n<h3 id=\"selinux-in-action-testing-a-file-context-error\">SELinux\u5728\u64cd\u4f5c\u4e2d\uff1a\u6d4b\u8bd5\u6587\u4ef6\u4e0a\u4e0b\u6587\u9519\u8bef<\/h3>\n<p>\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a<code class=\" prettyprinted\"><span class=\"pln\">www<\/span><\/code>\u7684\u6839\u76ee\u5f55\u4e0b\u3002\u00a0\u6211\u4eec\u8fd8\u5c06\u521b\u5efa\u4e00\u4e2a\u6587\u4ef6\u5939\uff0c\u540d\u4e3a<code class=\" prettyprinted\"><span class=\"pln\">html<\/span><\/code>\u4e0b\u7684<code class=\" prettyprinted\"><span class=\"pln\">www<\/span><\/code>\u00a0\u3002<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">mkdir <\/span><span class=\"pun\">-<\/span><span class=\"pln\">p <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">html<\/span><\/code><\/pre>\n<p>\u5982\u679c\u6211\u4eec\u8fd0\u884c<code class=\" prettyprinted\"><span class=\"pln\">ls\u00a0<\/span><span class=\"pun\">-<\/span><span class=\"pln\">Z<\/span><\/code>\u547d\u4ee4\uff0c\u6211\u4eec\u5c06\u770b\u5230\u8fd9\u4e9b\u76ee\u5f55\u5df2\u4e0e\u4e0a\u4e0b\u6587<strong>\u7684default_t<\/strong>\u521b\u5efa\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">ls <\/span><span class=\"pun\">-<\/span><span class=\"pln\">Z <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><\/code><\/pre>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">drwxr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">xr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">x<\/span><span class=\"pun\">.<\/span><span class=\"pln\"> root root unconfined_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">default_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0 html<\/span><\/code><\/pre>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u590d\u5236\u7684\u5185\u5bb9<code class=\" prettyprinted\"><span class=\"str\">\/var\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">html<\/span><\/code>\u76ee\u5f55<code class=\" prettyprinted\"><span class=\"str\">\/www\/<\/span><span class=\"pln\">html<\/span><\/code>\u00a0\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">cp <\/span><span class=\"pun\">\/<\/span><span class=\"kwd\">var<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">html<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">html<\/span><span class=\"pun\">\/<\/span><\/code><\/pre>\n<p>\u590d\u5236\u7684\u6587\u4ef6<strong>\u7684default_t<\/strong>\u6709\u4e00\u4e2a\u80cc\u666f\u3002\u00a0\u8fd9\u662f\u7236\u76ee\u5f55\u7684\u4e0a\u4e0b\u6587\u3002<\/p>\n<p>\u6211\u4eec\u73b0\u5728\u7f16\u8f91<code class=\" prettyprinted\"><span class=\"pln\">httpd<\/span><span class=\"pun\">.<\/span><span class=\"pln\">conf<\/span><\/code>\u6587\u4ef6\u6307\u5411\u8fd9\u4e2a\u65b0\u7684\u76ee\u5f55\u4f5c\u4e3a\u7f51\u7ad9\u7684\u6839\u6587\u4ef6\u5939\u3002\u00a0\u6211\u4eec\u8fd8\u5c06\u653e\u5bbd\u6b64\u76ee\u5f55\u7684\u8bbf\u95ee\u6743\u9650\u3002<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">vi <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">etc<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">httpd<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">conf<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">httpd<\/span><span class=\"pun\">.<\/span><span class=\"pln\">conf<\/span><\/code><\/pre>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u6ce8\u91ca\u6389\u6587\u6863\u6839\u73b0\u6709\u7684\u4f4d\u7f6e\uff0c\u5e76\u6dfb\u52a0\u65b0<code class=\" prettyprinted\"><span class=\"typ\">DocumentRoot<\/span><\/code>\u6307\u4ee4<code class=\" prettyprinted\"><span class=\"str\">\/www\/<\/span><span class=\"pln\">html<\/span><\/code>\u00a0\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"com\"># DocumentRoot \"\/var\/www\/html\"<\/span>\n\n<span class=\"typ\">DocumentRoot<\/span> <span class=\"str\">\"\/www\/html\"<\/span><\/code><\/pre>\n<p>\u6211\u4eec\u8fd8\u6ce8\u91ca\u4e86\u73b0\u6709\u6587\u6863\u6839\u76ee\u5f55\u7684\u8bbf\u95ee\u6743\u9650\u90e8\u5206\uff0c\u5e76\u6dfb\u52a0\u4e86\u4e00\u4e2a\u65b0\u7684\u90e8\u5206\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"com\">#&lt;Directory \"\/var\/www\"&gt;<\/span>\n<span class=\"com\">#    AllowOverride None<\/span>\n    <span class=\"com\"># Allow open access:<\/span>\n<span class=\"com\">#    Require all granted<\/span>\n<span class=\"com\">#&lt;\/Directory&gt;<\/span>\n\n<span class=\"pun\">&lt;<\/span><span class=\"typ\">Directory<\/span> <span class=\"str\">\"\/www\"<\/span><span class=\"pun\">&gt;<\/span>\n    <span class=\"typ\">AllowOverride<\/span> <span class=\"kwd\">None<\/span>\n    <span class=\"com\"># Allow open access:<\/span>\n    <span class=\"typ\">Require<\/span><span class=\"pln\"> all granted\n<\/span><span class=\"pun\">&lt;\/<\/span><span class=\"typ\">Directory<\/span><span class=\"pun\">&gt;<\/span><\/code><\/pre>\n<p>\u6211\u4eec\u79bb\u5f00\u7684\u4f4d\u7f6e<code class=\" prettyprinted\"><span class=\"pln\">cgi<\/span><span class=\"pun\">-<\/span><span class=\"pln\">bin<\/span><\/code>\u76ee\u5f55\uff0c\u56e0\u4e3a\u5b83\u662f\u3002\u00a0\u6211\u4eec\u4e0d\u5728\u8fd9\u91cc\u8fdb\u5165\u8be6\u7ec6\u7684Apache\u914d\u7f6e;\u00a0\u6211\u4eec\u53ea\u662f\u5e0c\u671b\u6211\u4eec\u7684\u7f51\u7ad9\u4e3aSELinux\u7684\u76ee\u7684\u5de5\u4f5c\u3002<\/p>\n<p>\u6700\u540e\uff0c\u91cd\u65b0\u542f\u52a8httpd\u5b88\u62a4\u8fdb\u7a0b\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">service httpd restart<\/span><\/code><\/pre>\n<p>\u4e00\u65e6\u670d\u52a1\u5668\u91cd\u65b0\u542f\u52a8\uff0c\u8bbf\u95ee\u7f51\u9875\u4f1a\u7ed9\u6211\u4eec\u4ee5\u524d\u770b\u5230\u7684\u201c403 Forbidden\u201d\u9519\u8bef\uff08\u6216\u9ed8\u8ba4\u7684\u201cTesting 123\u201d\u9875\u9762\uff09\u3002<\/p>\n<p>\u8be5\u9519\u8bef\u662f\u56e0\u4e3a\u53d1\u751f\u4e86<code class=\" prettyprinted\"><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html<\/span><\/code>\u6587\u4ef6\u7684\u80cc\u666f\u4e0b\u590d\u5236\u64cd\u4f5c\u8fc7\u7a0b\u4e2d\u6539\u53d8\u3002\u00a0\u5b83\u9700\u8981\u6539\u56de\u539f\u6765\u7684\u4e0a\u4e0b\u6587\uff08httpd\u7684<em>SYS<\/em>content_t\uff09\u3002<\/p>\n<p>\u4f46\u662f\u6211\u4eec\u600e\u4e48\u505a\u5462\uff1f<\/p>\n<h2 id=\"changing-and-restoring-selinux-file-contexts\">\u66f4\u6539\u548c\u6062\u590dSELinux\u6587\u4ef6\u4e0a\u4e0b\u6587<\/h2>\n<p>\u5728\u524d\u9762\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u6211\u4eec\u770b\u5230\u4e86\u6539\u53d8\u6587\u4ef6\u5185\u5bb9\u7684\u4e24\u4e2a\u547d\u4ee4\uff1a\u00a0<code class=\" prettyprinted\"><span class=\"pln\">chcon<\/span><\/code>\u548c<code class=\" prettyprinted\"><span class=\"pln\">restorecon<\/span><\/code>\u00a0\u3002\u00a0\u8fd0\u884c<code class=\" prettyprinted\"><span class=\"pln\">chcon<\/span><\/code>\u662f\u4e00\u9879\u4e34\u65f6\u63aa\u65bd\u3002\u00a0\u60a8\u53ef\u4ee5\u4f7f\u7528\u5b83\u4e34\u65f6\u66f4\u6539\u6587\u4ef6\u6216\u76ee\u5f55\u4e0a\u4e0b\u6587\u4ee5\u89e3\u51b3\u8bbf\u95ee\u62d2\u7edd\u9519\u8bef\u3002\u00a0\u4f46\u662f\uff0c\u8fd9\u79cd\u65b9\u6cd5\u53ea\u662f\u6682\u65f6\u7684\uff1a\u4e00\u4e2a\u6587\u4ef6\u7cfb\u7edf\u91cd\u65b0\u6807\u8bb0\u6216\u8fd0\u884c<code class=\" prettyprinted\"><span class=\"pln\">restorecon<\/span><\/code>\u547d\u4ee4\u5c06\u6062\u590d\u8be5\u6587\u4ef6\u8fd4\u56de\u5230\u539f\u6765\u7684\u4e0a\u4e0b\u6587\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u8fd0\u884c<code class=\" prettyprinted\"><span class=\"pln\">chcon<\/span><\/code>\u8981\u6c42\u60a8\u77e5\u9053\u8be5\u6587\u4ef6\u7684\u6b63\u786e\u7684\u4e0a\u4e0b\u6587;\u00a0\u5728<code class=\" prettyprinted\"><span class=\"pun\">--<\/span><span class=\"pln\">type<\/span><\/code>\u6807\u5fd7\u6307\u5b9a\u76ee\u6807\u7684\u4e0a\u4e0b\u6587\u3002\u00a0<code class=\" prettyprinted\"><span class=\"pln\">restorecon<\/span><\/code>\u4e0d\u9700\u8981\u6b64\u89c4\u5b9a\u3002\u00a0\u5982\u679c\u60a8\u8fd0\u884c<code class=\" prettyprinted\"><span class=\"pln\">restorecon<\/span><\/code>\u00a0\uff0c\u8be5\u6587\u4ef6\u5c06\u5177\u6709\u6b63\u786e\u7684\u4e0a\u4e0b\u6587\u91cd\u65b0\u5e94\u7528\u6240\u505a\u7684\u66f4\u6539\u5c06\u6210\u4e3a\u6c38\u4e45\u6027\u3002<\/p>\n<p>\u4f46\u662f\uff0c\u5982\u679c\u4f60\u4e0d\u77e5\u9053\u6587\u4ef6\u7684\u6b63\u786e\u7684\u60c5\u51b5\u4e0b\uff0c\u7cfb\u7edf\u600e\u6837\u77e5\u9053\u5f53\u5b83\u8fd0\u884c\u5230\u9002\u7528\u7684\u60c5\u51b5\u4e0b<code class=\" prettyprinted\"><span class=\"pln\">restorecon<\/span><\/code>\u00a0\uff1f<\/p>\n<p>\u65b9\u4fbf\u5730\uff0cSELinux\u201c\u8bb0\u4f4f\u201d\u670d\u52a1\u5668\u4e2d\u6bcf\u4e2a\u6587\u4ef6\u6216\u76ee\u5f55\u7684\u4e0a\u4e0b\u6587\u3002\u00a0\u5728CentOS 7\uff0c\u5728\u7cfb\u7edf\u4e2d\u5df2\u5b58\u5728\u7684\u6587\u4ef6\u7684\u4e0a\u4e0b\u6587\u4e2d\u5217\u51fa\u4e86<code class=\" prettyprinted\"><span class=\"str\">\/etc\/<\/span><span class=\"pln\">selinux<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">targeted<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">contexts<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">files<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">file_contexts<\/span><\/code>\u6587\u4ef6\u3002\u00a0\u5b83\u662f\u4e00\u4e2a\u5927\u6587\u4ef6\uff0c\u5b83\u5217\u51fa\u4e86\u6bcf\u4e2a\u4e0eLinux\u53d1\u884c\u7248\u652f\u6301\u7684\u6bcf\u4e2a\u5e94\u7528\u7a0b\u5e8f\u76f8\u5173\u8054\u7684\u6587\u4ef6\u7c7b\u578b\u3002\u00a0\u7684\u65b0\u7684\u76ee\u5f55\u548c\u6587\u4ef6\u7684\u4e0a\u4e0b\u6587\u88ab\u8bb0\u5f55\u5728<code class=\" prettyprinted\"><span class=\"str\">\/etc\/<\/span><span class=\"pln\">selinux<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">targeted<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">contexts<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">files<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">file_contexts<\/span><span class=\"pun\">.<\/span><span class=\"kwd\">local<\/span><\/code>\u6587\u4ef6\u3002\u00a0\u6240\u4ee5\uff0c\u5f53\u6211\u4eec\u8fd0\u884c<code class=\" prettyprinted\"><span class=\"pln\">restorecon<\/span><\/code>\u547d\u4ee4\uff0cSELinux\u7684\u5c06\u67e5\u627e\u6b63\u786e\u7684\u4e0a\u4e0b\u6587\u8fd9\u4e24\u4e2a\u6587\u4ef6\u4e2d\u7684\u4e00\u4e2a\uff0c\u5e76\u5c06\u5176\u5e94\u7528\u5230\u76ee\u6807\u3002<\/p>\n<p>\u4ee5\u4e0b\u4ee3\u7801\u6bb5\u663e\u793a\u4e86\u4ece\u5176\u4e2d\u4e00\u4e2a\u6587\u4ef6\u4e2d\u63d0\u53d6\u7684\u5185\u5bb9\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">cat <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">etc<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">selinux<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">targeted<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">contexts<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">files<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">file_contexts<\/span><\/code><\/pre>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pun\">...<\/span>\n<span class=\"pun\">\/<\/span><span class=\"pln\">usr<\/span><span class=\"pun\">\/(.*<\/span><span class=\"str\">\/)?lib(\/<\/span><span class=\"pun\">.*)?<\/span><span class=\"pln\">    system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">lib_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0\n<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">opt<\/span><span class=\"pun\">\/(.*<\/span><span class=\"str\">\/)?man(\/<\/span><span class=\"pun\">.*)?<\/span><span class=\"pln\">    system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">man_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0\n<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">dev<\/span><span class=\"pun\">\/(<\/span><span class=\"pln\">misc<\/span><span class=\"pun\">\/)?<\/span><span class=\"pln\">agpgart    <\/span><span class=\"pun\">-<\/span><span class=\"pln\">c      system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">agp_device_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0\n<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">usr<\/span><span class=\"pun\">\/(.*<\/span><span class=\"str\">\/)?sbin(\/<\/span><span class=\"pun\">.*)?<\/span><span class=\"pln\">   system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">bin_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0\n<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">opt<\/span><span class=\"pun\">\/(.*<\/span><span class=\"str\">\/)?sbin(\/<\/span><span class=\"pun\">.*)?<\/span><span class=\"pln\">   system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">bin_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0\n<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">etc<\/span><span class=\"pun\">\/(<\/span><span class=\"pln\">open<\/span><span class=\"pun\">)?<\/span><span class=\"pln\">afs<\/span><span class=\"pun\">(\/.*)?<\/span><span class=\"pln\">   system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">afs_config_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0\n<\/span><span class=\"pun\">...<\/span><\/code><\/pre>\n<p>\u8981\u6c38\u4e45\u5730\u6539\u53d8\u6211\u4eec\u7684\u4e0bindex.html\u6587\u4ef6\u7684\u60c5\u51b5\u4e0b<code class=\" prettyprinted\"><span class=\"str\">\/www\/<\/span><span class=\"pln\">html<\/span><\/code>\u00a0\uff0c\u6211\u4eec\u5fc5\u987b\u9075\u5faa\u4e24\u4e2a\u6b65\u9aa4\u7684\u8fc7\u7a0b\u3002<\/p>\n<ul>\n<li>\u9996\u5148\uff0c\u6211\u4eec\u8fd0\u884c<code class=\" prettyprinted\"><span class=\"pln\">semanage fcontext<\/span><\/code>\u547d\u4ee4\u3002\u00a0\u8fd9\u5c06\u5199\u5165\u65b0\u80cc\u666f\u4e0b\u7684<code class=\" prettyprinted\"><span class=\"str\">\/etc\/<\/span><span class=\"pln\">selinux<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">targeted<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">contexts<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">files<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">file_contexts<\/span><span class=\"pun\">.<\/span><span class=\"kwd\">local<\/span><\/code>\u6587\u4ef6\u3002\u00a0\u4f46\u5b83\u4e0d\u4f1a\u91cd\u65b0\u6807\u8bb0\u6587\u4ef6\u672c\u8eab\u3002\u00a0\u6211\u4eec\u5c06\u4e3a\u8fd9\u4e24\u4e2a\u76ee\u5f55\u3002<\/li>\n<\/ul>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">semanage fcontext <\/span><span class=\"pun\">--<\/span><span class=\"pln\">add <\/span><span class=\"pun\">--<\/span><span class=\"pln\">type <\/span><span class=\"typ\">httpd_sys_content_t<\/span> <span class=\"str\">\"\/www(\/.*)?\"<\/span><\/code><\/pre>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">semanage fcontext <\/span><span class=\"pun\">--<\/span><span class=\"pln\">add <\/span><span class=\"pun\">--<\/span><span class=\"pln\">type <\/span><span class=\"typ\">httpd_sys_content_t<\/span> <span class=\"str\">\"\/www\/html(\/.*)?\"<\/span><\/code><\/pre>\n<p>\u4e3a\u4e86\u786e\u4fdd\uff0c\u6211\u4eec\u53ef\u4ee5\u68c0\u67e5\u6587\u4ef6\u4e0a\u4e0b\u6587\u6570\u636e\u5e93\uff08\u8bf7\u6ce8\u610f\uff0c\u6211\u4eec\u4f7f\u7528\u7684\u662f<code class=\" prettyprinted\"><span class=\"pln\">file_contexts<\/span><span class=\"pun\">.<\/span><span class=\"kwd\">local<\/span><\/code>\u6587\u4ef6\uff09\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">cat <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">etc<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">selinux<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">targeted<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">contexts<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">files<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">file_contexts<\/span><span class=\"pun\">.<\/span><span class=\"kwd\">local<\/span><\/code><\/pre>\n<p>\u60a8\u5e94\u8be5\u4f1a\u770b\u5230\u66f4\u65b0\u7684\u4e0a\u4e0b\u6587\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"com\"># This file is auto-generated by libsemanage<\/span>\n<span class=\"com\"># Do not edit directly.<\/span>\n\n<span class=\"pun\">\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">(\/.*)?<\/span><span class=\"pln\">    system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_sys_content_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0\n<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">html<\/span><span class=\"pun\">(\/.*)?<\/span><span class=\"pln\">    system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_sys_content_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0<\/span><\/code><\/pre>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u8fd0\u884c<code class=\" prettyprinted\"><span class=\"pln\">restorecon<\/span><\/code>\u547d\u4ee4\u3002\u00a0\u8fd9\u5c06\u4f7f\u7528\u4e0a\u4e00\u6b65\u9aa4\u4e2d\u8bb0\u5f55\u7684\u5185\u5bb9\u91cd\u65b0\u6807\u8bb0\u6587\u4ef6\u6216\u76ee\u5f55\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">restorecon <\/span><span class=\"pun\">-<\/span><span class=\"typ\">Rv<\/span> <span class=\"pun\">\/<\/span><span class=\"pln\">www<\/span><\/code><\/pre>\n<p>\u8fd9\u5e94\u8be5\u91cd\u7f6e\u80cc\u666f\u4e0b\u4e09\u4e2a\u5c42\u6b21\uff1a\u9876\u5c42<code class=\" prettyprinted\"><span class=\"pun\">\/<\/span><span class=\"pln\">www<\/span><\/code>\u76ee\u5f55\uff0c\u00a0<code class=\" prettyprinted\"><span class=\"str\">\/www\/<\/span><span class=\"pln\">html<\/span><\/code>\u5176\u4e0b\u7684\u76ee\u5f55\u548c<code class=\" prettyprinted\"><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html<\/span><\/code>\u4e0b\u6863<code class=\" prettyprinted\"><span class=\"str\">\/www\/<\/span><span class=\"pln\">html<\/span><\/code>\u00a0\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">restorecon reset <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">www context unconfined_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">default_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0<\/span><span class=\"pun\">-&gt;<\/span><span class=\"pln\">unconfined_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_sys_content_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0\nrestorecon reset <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">html context unconfined_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">default_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0<\/span><span class=\"pun\">-&gt;<\/span><span class=\"pln\">unconfined_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_sys_content_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0\nrestorecon reset <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">html<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html context unconfined_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">default_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0<\/span><span class=\"pun\">-&gt;<\/span><span class=\"pln\">unconfined_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_sys_content_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0<\/span><\/code><\/pre>\n<p>\u5982\u679c\u6211\u4eec\u73b0\u5728\u5c1d\u8bd5\u8bbf\u95ee\u7f51\u9875\uff0c\u5b83\u5e94\u8be5\u5de5\u4f5c\u3002<\/p>\n<p>\u6709\u4e00\u4e2a\u53eb\u6781\u597d\u7684\u5de5\u5177<code class=\" prettyprinted\"><span class=\"pln\">matchpathcon<\/span><\/code>\u00a0\uff0c\u53ef\u4ee5\u5e2e\u52a9\u89e3\u51b3\u73af\u5883\u6709\u5173\u7684\u95ee\u9898\u3002\u00a0\u6b64\u547d\u4ee4\u5c06\u67e5\u770b\u8d44\u6e90\u7684\u5f53\u524d\u4e0a\u4e0b\u6587\uff0c\u5e76\u5c06\u5176\u4e0eSELinux\u4e0a\u4e0b\u6587\u6570\u636e\u5e93\u4e2d\u5217\u51fa\u7684\u5185\u5bb9\u8fdb\u884c\u6bd4\u8f83\u3002\u00a0\u5982\u679c\u4e0d\u540c\uff0c\u5b83\u5c06\u5efa\u8bae\u6240\u9700\u7684\u66f4\u6539\u3002\u00a0\u8ba9\u6211\u4eec\u6765\u6d4b\u8bd5\u8fd9\u4e0e<code class=\" prettyprinted\"><span class=\"str\">\/www\/<\/span><span class=\"pln\">html<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html<\/span><\/code>\u6587\u4ef6\u3002\u00a0\u6211\u4eec\u5c06\u4f7f\u7528<code class=\" prettyprinted\"><span class=\"pun\">-<\/span><span class=\"pln\">V<\/span><\/code>\u7684\u9a8c\u8bc1\u73af\u5883\u6807\u5fd7\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">matchpathcon <\/span><span class=\"pun\">-<\/span><span class=\"pln\">V <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">www<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">html<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html<\/span><\/code><\/pre>\n<p>\u6240\u8ff0<code class=\" prettyprinted\"><span class=\"pln\">matchpathcon<\/span><\/code>\u8f93\u51fa\u5e94\u663e\u793a\u7684\u4e0a\u4e0b\u6587\u8fdb\u884c\u9a8c\u8bc1\u3002<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"str\">\/www\/<\/span><span class=\"pln\">html<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html verified<\/span><span class=\"pun\">.<\/span><\/code><\/pre>\n<p>\u5bf9\u4e8e\u672a\u6b63\u786e\u6807\u8bb0\u7684\u6587\u4ef6\uff0c\u6d88\u606f\u5c06\u8bf4\u660e\u4e0a\u4e0b\u6587\u5e94\u8be5\u662f\u4ec0\u4e48\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"str\">\/www\/<\/span><span class=\"pln\">html<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">index<\/span><span class=\"pun\">.<\/span><span class=\"pln\">html has context unconfined_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">default_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0<\/span><span class=\"pun\">,<\/span><span class=\"pln\"> should be system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">httpd_sys_content_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0 <\/span><\/code><\/pre>\n<h2 id=\"domain-transition\">\u57df\u8f6c\u6362<\/h2>\n<p>\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u6211\u4eec\u5df2\u7ecf\u770b\u5230\u4e86\u8fdb\u7a0b\u5982\u4f55\u8bbf\u95ee\u6587\u4ef6\u7cfb\u7edf\u8d44\u6e90\u3002\u00a0\u6211\u4eec\u73b0\u5728\u5c06\u770b\u5230\u8fdb\u7a0b\u5982\u4f55\u8bbf\u95ee\u5176\u4ed6\u8fdb\u7a0b\u3002<\/p>\n<p><em>\u57df\u8f6c\u6362<\/em>\u662f\u4e00\u4e2a\u8fdb\u7a0b\u6539\u53d8\u4e86\u5b83\u7684\u4e0a\u4e0b\u6587\u4ece\u4e00\u4e2a\u57df\u5230\u53e6\u4e00\u4e2a\u65b9\u6cd5\u3002\u00a0\u4e3a\u4e86\u4e86\u89e3\u5b83\uff0c\u8ba9\u6211\u4eec\u8bf4\u4f60\u6709\u4e00\u4e2a\u540d\u4e3aPROC\u00a0<em>\u6b63\u5728\u8fd0\u884c\u7684contexta<\/em>\u5428<em>\u7684\u8303\u56f4\u5185<\/em>\u5904\u7406\u3002\u00a0\u968f\u7740\u57df\u8f6c\u6362\uff0cPROC\u00a0<em>\u4e00\u4e2a\u53ef\u4ee5\u8fd0\u884c\u7684\u5e94\u7528\u7a0b\u5e8f\uff08\u7a0b\u5e8f\u6216\u53ef\u6267\u884c\u811a\u672c\uff09\u79f0\u4e3a<\/em>X\u00a0<em>\u7a0b\u5e8f<\/em>\u00a0\uff0c\u5c06<em>\u4ea7\u751f<\/em>\u53e6\u4e00\u4e2a\u8fdb\u7a0b\u3002\u00a0\u8fd9\u79cd\u65b0\u5de5\u827a\u53ef\u79f0\u4e3aPROC\u00a0<em>B\uff0c\u5b83\u53ef\u4ee5\u5728contextb<\/em>\u725b\u903c<em>\u57df\u5185\u8fd0\u884c<\/em>\u00a0\u3002\u00a0\u6240\u4ee5\u6709\u6548\uff0ccontexta\u00a0<em>t\u4e3a<\/em>\u901a\u8fc7<em>\u8f6c\u6362<\/em>\u5e94\u7528<em>X<\/em>\u00a0<em>\u8981contextb<\/em>\u5428<em>\u3002<\/em>\u00a0<em>\u8be5\u5e94\u7528\u7a0b\u5e8f<\/em>\u00a0X\u53ef\u6267\u884c\u5de5\u4f5c\u4f5c\u4e3a\u4e00\u4e2a<em>\u5165\u53e3\u70b9<\/em>\u5230contextb_t\u3002\u00a0\u6d41\u7a0b\u53ef\u4ee5\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img decoding=\"async\" class=\"td-animation-stack-type0-1\" src=\"http:\/\/www.howtoing.com\/wp-content\/uploads\/articles\/SELinuxCentOS7\/4.jpg\" alt=\"SELinux\u57df\u8f6c\u6362\" \/><\/p>\n<p>\u57df\u8f6c\u6362\u7684\u60c5\u51b5\u5728SELinux\u4e2d\u662f\u76f8\u5f53\u5e38\u89c1\u7684\u3002\u00a0\u8ba9\u6211\u4eec\u8003\u8651\u5728\u6211\u4eec\u7684\u670d\u52a1\u5668\u4e0a\u8fd0\u884c\u7684vsftpd\u8fdb\u7a0b\u3002\u00a0\u5982\u679c\u5b83\u6ca1\u6709\u8fd0\u884c\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u8fd0\u884c<code class=\" prettyprinted\"><span class=\"pln\">service vsftpd start<\/span><\/code>\u547d\u4ee4\uff0c\u542f\u52a8\u5b88\u62a4\u8fdb\u7a0b\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\u6211\u4eec\u8003\u8651systemd\u8fdb\u7a0b\u3002\u00a0\u8fd9\u662f\u6240\u6709\u8fdb\u7a0b\u7684\u7956\u5148\u3002\u00a0\u8fd9\u662f<strong>init_t<\/strong>\u7684\u8303\u56f4\u5185\u66f4\u6362\u7cfb\u7edfV init\u8fdb\u7a0b\u5e76\u8fd0\u884c\u7684\u3002\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">ps <\/span><span class=\"pun\">-<\/span><span class=\"pln\">eZ  <\/span><span class=\"pun\">|<\/span><span class=\"pln\"> grep init<\/span><\/code><\/pre>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">system_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">init_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0         <\/span><span class=\"lit\">1<\/span> <span class=\"pun\">?<\/span>        <span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">02<\/span><span class=\"pln\"> systemd\nsystem_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">system_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">mdadm_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0      <\/span><span class=\"lit\">773<\/span> <span class=\"pun\">?<\/span>        <span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pln\"> iprinit<\/span><\/code><\/pre>\n<p>\u5728<strong>init_t<\/strong>\u57df\u5185\u8fd0\u884c\u7684\u8fdb\u7a0b\u662f\u4e00\u4e2a\u77ed\u547d\u7684\uff1a\u5b83\u4f1a\u8c03\u7528\u4e8c\u8fdb\u5236\u53ef\u6267\u884c\u6587\u4ef6<code class=\" prettyprinted\"><span class=\"str\">\/usr\/<\/span><span class=\"pln\">sbin<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">vsftpd<\/span><\/code>\u00a0\uff0c\u5176\u4e2d\u6709<strong>ftpd\u7684<em>EXEC<\/em>\u5428<\/strong>\u7c7b\u578b\u7684\u4e0a\u4e0b\u6587\u3002\u00a0\u5f53\u4e8c\u8fdb\u5236\u53ef\u6267\u884c\u6587\u4ef6\u5f00\u59cb\uff0c\u5b83\u6210\u4e3avsftpd\u7684\u5b88\u62a4\u7a0b\u5e8f\u672c\u8eab\u548c<strong>ftpd_t<\/strong>\u57df\u5185\u8fd0\u884c\u3002<\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u68c0\u67e5\u6587\u4ef6\u548c\u8fdb\u7a0b\u7684\u57df\u4e0a\u4e0b\u6587\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">ls <\/span><span class=\"pun\">-<\/span><span class=\"pln\">Z <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">usr<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">sbin<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">vsftpd<\/span><\/code><\/pre>\n<p>\u663e\u793a\u6211\u4eec\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pun\">-<\/span><span class=\"pln\">rwxr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">xr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">x<\/span><span class=\"pun\">.<\/span><span class=\"pln\"> root root system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">object_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">ftpd_exec_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0 <\/span><span class=\"pun\">\/<\/span><span class=\"pln\">usr<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">sbin<\/span><span class=\"pun\">\/<\/span><span class=\"pln\">vsftpd<\/span><\/code><\/pre>\n<p>\u68c0\u67e5\u8fc7\u7a0b\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">ps <\/span><span class=\"pun\">-<\/span><span class=\"pln\">eZ <\/span><span class=\"pun\">|<\/span><span class=\"pln\"> grep vsftpd<\/span><\/code><\/pre>\n<p>\u663e\u793a\u6211\u4eec\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">system_u<\/span><span class=\"pun\">:<\/span><span class=\"pln\">system_r<\/span><span class=\"pun\">:<\/span><span class=\"typ\">ftpd_t<\/span><span class=\"pun\">:<\/span><span class=\"pln\">s0<\/span><span class=\"pun\">-<\/span><span class=\"pln\">s0<\/span><span class=\"pun\">:<\/span><span class=\"pln\">c0<\/span><span class=\"pun\">.<\/span><span class=\"pln\">c1023 <\/span><span class=\"lit\">7708<\/span> <span class=\"pun\">?<\/span> <span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pun\">:<\/span><span class=\"lit\">00<\/span><span class=\"pln\"> vsftpd<\/span><\/code><\/pre>\n<p>\u6240\u4ee5\u5728\u8fd9\u91cc\u7684<strong>init_t<\/strong>\u57df\u4e2d\u8fd0\u884c\u7684\u8fdb\u7a0b\u6b63\u5728\u6267\u884c\u4e0e<strong>ftpd\u7684<em>EXEC<\/em>\u00a0T<\/strong>\u5f62\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\u3002\u00a0\u8be5\u6587\u4ef6\u5c06\u542f\u52a8<strong>ftpd_t<\/strong>\u57df\u5185\u7684\u5b88\u62a4\u8fdb\u7a0b\u3002<\/p>\n<p>\u8fd9\u79cd\u8f6c\u6362\u4e0d\u662f\u5e94\u7528\u7a0b\u5e8f\u6216\u7528\u6237\u53ef\u4ee5\u63a7\u5236\u7684\u3002\u00a0\u8fd9\u5728SELinux\u7b56\u7565\u4e2d\u89c4\u5b9a\uff0c\u5728\u7cfb\u7edf\u5f15\u5bfc\u65f6\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\u3002\u00a0\u5728\u975eSELinux\u670d\u52a1\u5668\u4e2d\uff0c\u7528\u6237\u53ef\u4ee5\u901a\u8fc7\u5207\u6362\u5230\u66f4\u5f3a\u5927\u7684\u5e10\u6237\uff08\u5047\u5982\u5979\u6216\u4ed6\u6709\u6743\u8fd9\u6837\u505a\uff09\u6765\u542f\u52a8\u8fdb\u7a0b\u3002\u00a0\u5728SELinux\u4e2d\uff0c\u8fd9\u79cd\u8bbf\u95ee\u7531\u9884\u5148\u7f16\u5199\u7684\u7b56\u7565\u63a7\u5236\u3002\u00a0\u8fd9\u662fSELinux\u88ab\u79f0\u4e3a\u5b9e\u65bd\u5f3a\u5236\u8bbf\u95ee\u63a7\u5236\u7684\u53e6\u4e00\u4e2a\u539f\u56e0\u3002<\/p>\n<p>\u57df\u8f6c\u6362\u53d7\u4e09\u4e2a\u4e25\u683c\u89c4\u5219\u7ea6\u675f\uff1a<\/p>\n<ul>\n<li>\u6e90\u57df\u7684\u7236\u8fdb\u7a0b\u5fc5\u987b\u6709\u4e24\u4e2a\u5e94\u7528\u7a0b\u5e8f\u57df\u4e4b\u95f4\u5750\u5728\u6267\u884c\u6743\u9650\uff08\u8fd9\u662f<em>\u5165\u53e3\u70b9<\/em>\u00a0\uff09\u3002<\/li>\n<li>\u8be5\u5e94\u7528\u7a0b\u5e8f\u7684\u6587\u4ef6\u4e0a\u4e0b\u6587\u5fc5\u987b\u88ab\u786e\u5b9a\u4e3a\u76ee\u6807\u57df\u7684<em>\u5165\u53e3\u70b9<\/em>\u00a0\u3002<\/li>\n<li>\u5fc5\u987b\u5141\u8bb8\u539f\u59cb\u57df\u8f6c\u6362\u5230\u76ee\u6807\u57df\u3002<\/li>\n<\/ul>\n<p>\u8003\u8651\u4e0a\u8ff0vsftpd\u7684\u5b88\u62a4\u8fdb\u7a0b\u7684\u4f8b\u5b50\uff0c\u8ba9\u6211\u4eec\u8fd0\u884c<code class=\" prettyprinted\"><span class=\"pln\">sesearch<\/span><\/code>\u7528\u4e0d\u540c\u7684\u5f00\u5173\u547d\u4ee4\uff0c\u770b\u662f\u5426\u7b26\u5408\u5b88\u62a4\u8fd9\u4e09\u4e2a\u89c4\u5219\u3002<\/p>\n<p>\u9996\u5148\uff0c\u6e90\u57df\u521d\u59cb\u5316<em>\u725b\u903c\u9700\u8981\u6709\u4e0eftpd\u670d\u52a1<\/em>\u00a0exec_t\u4e0a\u4e0b\u6587<em>\u4e2d\u7684\u5e94\u7528\u7a0b\u5e8f\u5165\u53e3\u70b9\u6267\u884c\u6743\u9650<\/em>\u00a0\u3002\u00a0\u6240\u4ee5\u5982\u679c\u6211\u4eec\u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">sesearch <\/span><span class=\"pun\">-<\/span><span class=\"pln\">s <\/span><span class=\"typ\">init_t<\/span> <span class=\"pun\">-<\/span><span class=\"pln\">t <\/span><span class=\"typ\">ftpd_exec_t<\/span> <span class=\"pun\">-<\/span><span class=\"pln\">c file <\/span><span class=\"pun\">-<\/span><span class=\"pln\">p execute <\/span><span class=\"pun\">-<\/span><span class=\"typ\">Ad<\/span><\/code><\/pre>\n<p>\u7ed3\u679c\u8868\u660e\uff0c\u521d\u59cb\u5316<em>\u725b\u903c\u57df\u5185<\/em>\u8fdb\u7a0b<em>\u53ef\u4ee5\u8bfb\uff0c\u5f97\u5230\u7684\u5c5e\u6027\uff0c\u6267\u884c\u548cftpd<\/em>\u00a0exec_t\u00a0<em>\u4e0a\u4e0b\u6587\u6253\u5f00\u6587\u4ef6<\/em>\u00a0\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"typ\">Found<\/span> <span class=\"lit\">1<\/span><span class=\"pln\"> semantic av rules<\/span><span class=\"pun\">:<\/span><span class=\"pln\">\n   allow <\/span><span class=\"typ\">init_t<\/span> <span class=\"typ\">ftpd_exec_t<\/span> <span class=\"pun\">:<\/span><span class=\"pln\"> file <\/span><span class=\"pun\">{<\/span><span class=\"pln\"> read getattr execute open <\/span><span class=\"pun\">}<\/span> <span class=\"pun\">;<\/span><\/code><\/pre>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u68c0\u67e5\u4e8c\u8fdb\u5236\u6587\u4ef6\u662f\u5426\u662f\u76ee\u6807\u57df\u7684\u5165\u53e3\u70b9ftpd_t\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">sesearch <\/span><span class=\"pun\">-<\/span><span class=\"pln\">s <\/span><span class=\"typ\">ftpd_t<\/span> <span class=\"pun\">-<\/span><span class=\"pln\">t <\/span><span class=\"typ\">ftpd_exec_t<\/span> <span class=\"pun\">-<\/span><span class=\"pln\">c file <\/span><span class=\"pun\">-<\/span><span class=\"pln\">p entrypoint <\/span><span class=\"pun\">-<\/span><span class=\"typ\">Ad<\/span><\/code><\/pre>\n<p>\u4e8b\u5b9e\u4e0a\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"typ\">Found<\/span> <span class=\"lit\">1<\/span><span class=\"pln\"> semantic av rules<\/span><span class=\"pun\">:<\/span><span class=\"pln\">\n   allow <\/span><span class=\"typ\">ftpd_t<\/span> <span class=\"typ\">ftpd_exec_t<\/span> <span class=\"pun\">:<\/span><span class=\"pln\"> file <\/span><span class=\"pun\">{<\/span><span class=\"pln\"> ioctl read getattr <\/span><span class=\"kwd\">lock<\/span><span class=\"pln\"> execute execute_no_trans entrypoint open <\/span><span class=\"pun\">}<\/span> <span class=\"pun\">;<\/span><\/code><\/pre>\n<p>\u6700\u540e\uff0c\u6e90\u57df\u521d\u59cb\u5316<em>\u725b\u903c\u9700\u8981\u6709\u6743\u9650\u8fc7\u6e21\u5230\u76ee\u6807\u57dfftpd\u7684<\/em>\u00a0T\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"pln\">sesearch <\/span><span class=\"pun\">-<\/span><span class=\"pln\">s <\/span><span class=\"typ\">init_t<\/span> <span class=\"pun\">-<\/span><span class=\"pln\">t <\/span><span class=\"typ\">ftpd_t<\/span> <span class=\"pun\">-<\/span><span class=\"pln\">c process <\/span><span class=\"pun\">-<\/span><span class=\"pln\">p transition <\/span><span class=\"pun\">-<\/span><span class=\"typ\">Ad<\/span><\/code><\/pre>\n<p>\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u6e90\u57df\u5177\u6709\u8be5\u6743\u9650\uff1a<\/p>\n<pre class=\"code-pre  prettyprinted\"><code class=\" prettyprinted\"><span class=\"typ\">Found<\/span> <span class=\"lit\">1<\/span><span class=\"pln\"> semantic av rules<\/span><span class=\"pun\">:<\/span><span class=\"pln\">\n   allow <\/span><span class=\"typ\">init_t<\/span> <span class=\"typ\">ftpd_t<\/span> <span class=\"pun\">:<\/span><span class=\"pln\"> process transition <\/span><span class=\"pun\">;<\/span><\/code><\/pre>\n<h2 id=\"unconfined-domains\">\u65e0\u9650\u57df\u540d<\/h2>\n<p>\u5f53\u6211\u4eec\u4ecb\u7ecd\u9886\u57df\u7684\u6982\u5ff5\u65f6\uff0c\u6211\u4eec\u5c06\u5176\u4e0e\u6d41\u7a0b\u4e2d\u7684\u5047\u8bbe\u6ce1\u6cab\u8fdb\u884c\u6bd4\u8f83\uff1a\u89c4\u5b9a\u4e86\u6d41\u7a0b\u53ef\u4ee5\u505a\u4ec0\u4e48\u548c\u4e0d\u80fd\u505a\u4ec0\u4e48\u7684\u4e8b\u60c5\u3002\u00a0\u8fd9\u5c31\u662f\u9650\u5236\u8fd9\u4e2a\u8fc7\u7a0b\u3002<\/p>\n<p>SELinux\u8fd8\u6709\u5728\u65e0\u9650\u57df\u5185\u8fd0\u884c\u7684\u8fdb\u7a0b\u3002\u00a0\u53ef\u4ee5\u60f3\u8c61\uff0c\u65e0\u7ea6\u675f\u7684\u8fdb\u7a0b\u5c06\u62e5\u6709\u7cfb\u7edf\u4e2d\u7684\u6240\u6709\u7c7b\u578b\u7684\u8bbf\u95ee\u3002\u00a0\u5373\u4f7f\u8fd9\u6837\uff0c\u8fd9\u4e2a\u5b8c\u5168\u8bbf\u95ee\u4e0d\u662f\u4efb\u610f\u7684\uff1a\u5b8c\u5168\u8bbf\u95ee\u4e5f\u5728SELinux\u7b56\u7565\u4e2d\u6307\u5b9a\u3002<\/p>\n<p>\u65e0\u7ea6\u675f\u8fdb\u7a0b\u57df\u7684\u793a\u4f8b\u662funconfined_t\u3002\u00a0\u8fd9\u662f\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u5728\u7528\u6237\u8fd0\u884c\u5176\u8fdb\u7a0b\u65f6\u8bb0\u5f55\u7684\u540c\u4e00\u57df\u3002\u00a0\u6211\u4eec\u5c06\u5728\u540e\u7eed\u7ae0\u8282\u4e2d\u8ba8\u8bba\u7528\u6237\u53ca\u5176\u5bf9\u8fdb\u7a0b\u57df\u7684\u8bbf\u95ee\u3002<\/p>\n<h2 id=\"conclusion\">\u7ed3\u8bba<\/h2>\n<p>\u6211\u4eec\u4eca\u5929\u5728\u8fd9\u91cc\u4ecb\u7ecd\u4e86\u4e00\u4e9b\u975e\u5e38\u91cd\u8981\u7684SELinux\u6982\u5ff5\u3002\u00a0\u7ba1\u7406\u6587\u4ef6\u548c\u6d41\u7a0b\u4e0a\u4e0b\u6587\u662f\u6210\u529f\u7684SELinux\u5b9e\u73b0\u7684\u6838\u5fc3\u3002\u6b63\u5982\u6211\u4eec\u5c06\u5728\u672a\u6765\u770b\u5230<a href=\"http:\/\/www.howtoing.com\/an-introduction-to-selinux-on-centos-7-part-3-users\/\">\u8fd9\u4e2a\u7cfb\u5217\u7684\u6700\u540e\u4e00\u90e8\u5206<\/a>\u00a0\uff0c\u8fd8\u6709\u53e6\u4e00\u5757\u5269\u4f59\u62fc\u56fe\uff1aSELinux\u7684\u7528\u6237\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ecb\u7ecd \u5728\u7b2c\u4e00\u90e8\u5206\u6211\u4eecSELinux\u7684\u7cfb\u5217\uff0c\u6211\u4eec\u770b\u5230\u4e86\u5982\u4f55\u542f\u7528\u548c\u7981\u7528SELinux\uff0c\u5982\u4f55\u6539\u53d8\u4e00\u4e9b\u4f7f\u7528\u5e03\u5c14\u503c\u7684\u7b56\u7565\u8bbe\u7f6e\u3002\u00a0\u5728\u7b2c\u4e8c\u90e8\u5206\u4e2d\uff0c\u6211\u4eec\u5c06\u8ba8\u8bba\u6587\u4ef6\u548c\u8fdb\u7a0b\u5b89\u5168\u4e0a\u4e0b\u6587\u3002 \u4ece\u524d\u9762\u7684\u6559\u7a0b\u5237\u65b0\u4f60\u7684\u8bb0\u5fc6\uff0c\u4e00\u4e2a\u6587\u4ef6\u7684\u5b89\u5168\u4e0a\u4e0b\u6587\u662f\u4e00\u4e2a\u7c7b\u578b\u00a0\uff0c\u4e00\u4e2a\u8fc7\u7a0b\u7684\u5b89\u5168\u4e0a\u4e0b\u6587\u662f\u4e00\u4e2a\u57df\u00a0\u3002 \u6ce8\u610f \u672c\u6559\u7a0b\u4e2d\u663e\u793a\u7684\u547d\u4ee4\uff0c\u5305\u548c\u6587\u4ef6\u5728CENTOS 7\u4e0a\u8fdb\u884c\u4e86\u6d4b\u8bd5\u3002\u5176\u4ed6\u53d1\u884c\u7248\u7684\u6982\u5ff5\u4fdd\u6301\u4e0d\u53d8\u3002 \u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u9664\u975e\u53e6\u6709\u8bf4\u660e\uff0c\u5426\u5219\u6211\u4eec\u5c06\u4ee5root\u7528\u6237\u8eab\u4efd\u8fd0\u884c\u547d\u4ee4\u3002\u00a0\u5982\u679c\u60a8\u6ca1\u6709\u8bbf\u95ee\u5230root\u5e10\u6237\uff0c\u5e76\u4f7f\u7528\u4f7f\u7528sudo\u6743\u9650\u7684\u5176\u4ed6\u5e10\u6237\uff0c\u60a8\u9700\u8981\u4e0e\u5148\u4e8e\u547d\u4ee4sudo\u5173\u952e\u5b57\u3002 \u521b\u5efa\u6d4b\u8bd5\u7528\u6237\u5e10\u6237 \u9996\u5148\uff0c\u8ba9\u6211\u4eec\u521b\u5efa\u56db\u4e2a\u7528\u6237\u5e10\u6237\u6765\u6f14\u793aSELinux\u7684\u529f\u80fd\u3002 \u666e\u901a\u7528\u6237 \u5207\u6362\u7528\u6237 \u8bbf\u5ba2 restricteduser \u76ee\u524d\u5e94\u8be5\u662froot\u7528\u6237\u3002\u00a0\u8ba9\u6211\u4eec\u8fd0\u884c\u4e0b\u9762\u7684\u547d\u4ee4\u6765\u6dfb\u52a0regularuser\u5e10\u6237\uff1a useradd -c &#8220;Regular User&#8221; regularuser \u7136\u540e\uff0c\u6211\u4eec\u8fd0\u884cpasswd\u547d\u4ee4\u6765\u4fee\u6539\u81ea\u5df1\u7684\u53e3\u4ee4\uff1a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-308","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/posts\/308","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=308"}],"version-history":[{"count":0,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/posts\/308\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=308"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=308"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=308"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}