{"id":63043,"date":"2025-04-29T12:47:12","date_gmt":"2025-04-29T04:47:12","guid":{"rendered":"https:\/\/fwq.ai\/blog\/63043\/"},"modified":"2025-04-29T12:47:12","modified_gmt":"2025-04-29T04:47:12","slug":"%e6%8e%8c%e6%8f%a1selinux%e7%ad%96%e7%95%a5%e7%b1%bb%e5%88%ab-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/63043\/","title":{"rendered":"\u638c\u63e1SELinux\u7b56\u7565\u7c7b\u522b"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/887\/227\/170895223372778.jpg\" class=\"aligncenter\" title=\"\u638c\u63e1SELinux\u7b56\u7565\u7c7b\u522b\u63d2\u56fe\" alt=\"\u638c\u63e1SELinux\u7b56\u7565\u7c7b\u522b\u63d2\u56fe\" \/><\/p>\n<p>SELinux\u662f\u4e00\u79cd\u57fa\u4e8eMandatory Access Control\uff08MAC\uff09\u7684\u5b89\u5168\u673a\u5236\uff0c\u7528\u4e8e\u9650\u5236\u7a0b\u5e8f\u548c\u7528\u6237\u5bf9\u7cfb\u7edf\u8d44\u6e90\u7684\u8bbf\u95ee\u3002\u5728SELinux\u4e2d\uff0c\u7b56\u7565\u7c7b\u578b\u662f\u7528\u6765\u5b9a\u4e49\u548c\u63a7\u5236\u5bf9\u8c61\u7684\u8bbf\u95ee\u6743\u9650\u7684\u91cd\u8981\u6982\u5ff5\u4e4b\u4e00\u3002\u672c\u6587\u5c06\u4ecb\u7ecdSELinux\u4e2d\u7684\u7b56\u7565\u7c7b\u578b\uff0c\u5e76\u901a\u8fc7\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u6765\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u3002<\/p>\n<h3>SELinux\u7b56\u7565\u7c7b\u578b\u6982\u8ff0<\/h3>\n<p>\u5728SELinux\u4e2d\uff0c\u6bcf\u4e2a\u5bf9\u8c61\uff08\u6587\u4ef6\u3001\u8fdb\u7a0b\u7b49\uff09\u90fd\u6709\u76f8\u5e94\u7684\u7c7b\u578b\uff0c\u800c\u7b56\u7565\u7c7b\u578b\u5219\u7528\u6765\u5b9a\u4e49\u4e0d\u540c\u7c7b\u578b\u4e4b\u95f4\u7684\u8bbf\u95ee\u89c4\u5219\u3002\u7b56\u7565\u7c7b\u578b\u7c7b\u4f3c\u4e8e\u201c\u6807\u7b7e\u201d\uff0c\u7528\u6765\u533a\u5206\u4e0d\u540c\u7684\u5bf9\u8c61\uff0c\u5e76\u51b3\u5b9a\u5b83\u4eec\u4e4b\u95f4\u7684\u5173\u7cfb\u3002\u901a\u8fc7\u5b9a\u4e49\u4e0d\u540c\u7b56\u7565\u7c7b\u578b\u4e4b\u95f4\u7684\u5141\u8bb8\u6216\u62d2\u7edd\u8bbf\u95ee\u89c4\u5219\uff0c\u53ef\u4ee5\u5b9e\u73b0\u7ec6\u7c92\u5ea6\u7684\u8bbf\u95ee\u63a7\u5236\u3002<\/p>\n<p>\u5728SELinux\u4e2d\uff0c\u5e38\u89c1\u7684\u7b56\u7565\u7c7b\u578b\u6709\u4ee5\u4e0b\u51e0\u79cd\uff1a<\/p>\n<ul>\n<li>user_t\uff1a\u7528\u4e8e\u8868\u793a\u7528\u6237\u7c7b\u578b\uff0c\u6bcf\u4e2a\u7528\u6237\u90fd\u6709\u5bf9\u5e94\u7684user_t\u7c7b\u578b\uff1b<\/li>\n<li>role_t\uff1a\u7528\u4e8e\u8868\u793a\u89d2\u8272\u7c7b\u578b\uff0c\u6bcf\u4e2a\u89d2\u8272\u90fd\u6709\u5bf9\u5e94\u7684role_t\u7c7b\u578b\uff1b<\/li>\n<li>type_t\uff1a\u7528\u4e8e\u8868\u793a\u5bf9\u8c61\u7c7b\u578b\uff0c\u5982\u6587\u4ef6\u3001\u76ee\u5f55\u3001\u8fdb\u7a0b\u7b49\uff1b<\/li>\n<li>level_t\uff1a\u7528\u4e8e\u8868\u793a\u5b89\u5168\u7ea7\u522b\u3002<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u5b9a\u4e49\u8fd9\u4e9b\u7b56\u7565\u7c7b\u578b\uff0c\u53ef\u4ee5\u9650\u5236\u4e0d\u540c\u7528\u6237\u6216\u89d2\u8272\u5bf9\u4e0d\u540c\u7c7b\u578b\u5bf9\u8c61\u7684\u8bbf\u95ee\u6743\u9650\uff0c\u4ece\u800c\u63d0\u9ad8\u7cfb\u7edf\u7684\u5b89\u5168\u6027\u3002<\/p>\n<h3>SELinux\u7b56\u7565\u7c7b\u578b\u4ee3\u7801\u793a\u4f8b<\/h3>\n<p>\u4e3a\u4e86\u66f4\u76f4\u89c2\u5730\u7406\u89e3SELinux\u4e2d\u7684\u7b56\u7565\u7c7b\u578b\uff0c\u4e0b\u9762\u4ee5\u4e00\u4e2a\u7b80\u5355\u7684\u4ee3\u7801\u793a\u4f8b\u6765\u8bf4\u660e\u3002\u5047\u8bbe\u6211\u4eec\u8981\u5b9a\u4e49\u4e00\u4e2aSELinux\u7b56\u7565\u7c7b\u578b\uff0c\u9650\u5236\u4e00\u4e2a\u7528\u6237\u53ea\u80fd\u8bfb\u53d6\u67d0\u4e2a\u7279\u5b9a\u6587\u4ef6\u5939\u4e0b\u7684\u6587\u4ef6\u3002<\/p>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5b9a\u4e49\u4e00\u4e2atype_t\u7c7b\u578b\uff0c\u8868\u793a\u6587\u4ef6\u5939\u5bf9\u8c61\uff1a<\/p>\n<pre>type folder_t;<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u7136\u540e\uff0c\u5b9a\u4e49\u4e00\u4e2auser_t\u7c7b\u578b\uff0c\u8868\u793a\u7528\u6237\u5bf9\u8c61\uff1a<\/p>\n<pre>type user_t;<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u63a5\u7740\uff0c\u5b9a\u4e49\u4e00\u4e2aallow\u89c4\u5219\uff0c\u5141\u8bb8user_t\u7c7b\u578b\u7684\u7528\u6237\u53ea\u8bfb\u53d6folder_t\u7c7b\u578b\u7684\u6587\u4ef6\u5939\u4e0b\u7684\u6587\u4ef6\uff1a<\/p>\n<pre>allow user_t folder_t:file { read };<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u6700\u540e\uff0c\u8f7d\u5165\u8be5\u7b56\u7565\u7c7b\u578b\uff0c\u4f7f\u5176\u751f\u6548\uff1a<\/p>\n<pre>semanage boolean -m --on user_folder_readonly<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u4ee3\u7801\u793a\u4f8b\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u7b56\u7565\u7c7b\u578b\uff0c\u9650\u5236\u4e86\u7279\u5b9a\u7528\u6237\u53ea\u80fd\u5bf9\u7279\u5b9a\u6587\u4ef6\u5939\u4e0b\u7684\u6587\u4ef6\u8fdb\u884c\u8bfb\u53d6\u64cd\u4f5c\u3002\u901a\u8fc7\u8fd9\u6837\u7684\u7ec6\u7c92\u5ea6\u8bbf\u95ee\u63a7\u5236\uff0c\u53ef\u4ee5\u52a0\u5f3a\u7cfb\u7edf\u7684\u5b89\u5168\u6027\uff0c\u786e\u4fdd\u7528\u6237\u53ea\u80fd\u8bbf\u95ee\u5176\u88ab\u6388\u6743\u7684\u8d44\u6e90\u3002<\/p>\n<h3>\u603b\u7ed3<\/h3>\n<p>\u7406\u89e3SELinux\u4e2d\u7684\u7b56\u7565\u7c7b\u578b\u5bf9\u4e8e\u7cfb\u7edf\u5b89\u5168\u81f3\u5173\u91cd\u8981\u3002\u901a\u8fc7\u5b9a\u4e49\u548c\u63a7\u5236\u7b56\u7565\u7c7b\u578b\uff0c\u53ef\u4ee5\u5b9e\u73b0\u7ec6\u7c92\u5ea6\u7684\u8bbf\u95ee\u63a7\u5236\uff0c\u63d0\u9ad8\u7cfb\u7edf\u7684\u5b89\u5168\u6027\u548c\u7a33\u5b9a\u6027\u3002\u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd\u548c\u4ee3\u7801\u793a\u4f8b\uff0c\u5e0c\u671b\u8bfb\u8005\u4eec\u80fd\u66f4\u52a0\u6df1\u5165\u5730\u4e86\u89e3SELinux\u4e2d\u7684\u7b56\u7565\u7c7b\u578b\uff0c\u5e76\u5728\u5b9e\u8df5\u4e2d\u52a0\u4ee5\u5e94\u7528\uff0c\u4fdd\u969c\u7cfb\u7edf\u5b89\u5168\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u638c\u63e1SELinux\u7b56\u7565\u7c7b\u522b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8FDCServers\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SELinux\u662f\u4e00\u79cd\u57fa\u4e8eMandatory Access Control\uff08MAC\uff09\u7684\u5b89\u5168\u673a\u5236\uff0c\u7528\u4e8e\u9650\u5236\u7a0b\u5e8f\u548c\u7528\u6237\u5bf9\u7cfb\u7edf\u8d44\u6e90\u7684\u8bbf\u95ee\u3002\u5728SELinux\u4e2d\uff0c\u7b56\u7565\u7c7b\u578b\u662f\u7528\u6765\u5b9a\u4e49\u548c\u63a7\u5236\u5bf9\u8c61\u7684\u8bbf\u95ee\u6743\u9650\u7684\u91cd\u8981\u6982\u5ff5\u4e4b\u4e00\u3002\u672c\u6587\u5c06\u4ecb\u7ecdSELinux\u4e2d\u7684\u7b56\u7565\u7c7b\u578b\uff0c\u5e76\u901a\u8fc7\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u6765\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u3002 SELinux\u7b56\u7565\u7c7b\u578b\u6982\u8ff0 \u5728SELinux\u4e2d\uff0c\u6bcf\u4e2a\u5bf9\u8c61\uff08\u6587\u4ef6\u3001\u8fdb\u7a0b\u7b49\uff09\u90fd\u6709\u76f8\u5e94\u7684\u7c7b\u578b\uff0c\u800c\u7b56\u7565\u7c7b\u578b\u5219\u7528\u6765\u5b9a\u4e49\u4e0d\u540c\u7c7b\u578b\u4e4b\u95f4\u7684\u8bbf\u95ee\u89c4\u5219\u3002\u7b56\u7565\u7c7b\u578b\u7c7b\u4f3c\u4e8e\u201c\u6807\u7b7e\u201d\uff0c\u7528\u6765\u533a\u5206\u4e0d\u540c\u7684\u5bf9\u8c61\uff0c\u5e76\u51b3\u5b9a\u5b83\u4eec\u4e4b\u95f4\u7684\u5173\u7cfb\u3002\u901a\u8fc7\u5b9a\u4e49\u4e0d\u540c\u7b56\u7565\u7c7b\u578b\u4e4b\u95f4\u7684\u5141\u8bb8\u6216\u62d2\u7edd\u8bbf\u95ee\u89c4\u5219\uff0c\u53ef\u4ee5\u5b9e\u73b0\u7ec6\u7c92\u5ea6\u7684\u8bbf\u95ee\u63a7\u5236\u3002 \u5728SELinux\u4e2d\uff0c\u5e38\u89c1\u7684\u7b56\u7565\u7c7b\u578b\u6709\u4ee5\u4e0b\u51e0\u79cd\uff1a user_t\uff1a\u7528\u4e8e\u8868\u793a\u7528\u6237\u7c7b\u578b\uff0c\u6bcf\u4e2a\u7528\u6237\u90fd\u6709\u5bf9\u5e94\u7684user_t\u7c7b\u578b\uff1b role_t\uff1a\u7528\u4e8e\u8868\u793a\u89d2\u8272\u7c7b\u578b\uff0c\u6bcf\u4e2a\u89d2\u8272\u90fd\u6709\u5bf9\u5e94\u7684role_t\u7c7b\u578b\uff1b type_t\uff1a\u7528\u4e8e\u8868\u793a\u5bf9\u8c61\u7c7b\u578b\uff0c\u5982\u6587\u4ef6\u3001\u76ee\u5f55\u3001\u8fdb\u7a0b\u7b49\uff1b level_t\uff1a\u7528\u4e8e\u8868\u793a\u5b89\u5168\u7ea7\u522b\u3002 \u901a\u8fc7\u5b9a\u4e49\u8fd9\u4e9b\u7b56\u7565\u7c7b\u578b\uff0c\u53ef\u4ee5\u9650\u5236\u4e0d\u540c\u7528\u6237\u6216\u89d2\u8272\u5bf9\u4e0d\u540c\u7c7b\u578b\u5bf9\u8c61\u7684\u8bbf\u95ee\u6743\u9650\uff0c\u4ece\u800c\u63d0\u9ad8\u7cfb\u7edf\u7684\u5b89\u5168\u6027\u3002 SELinux\u7b56\u7565\u7c7b\u578b\u4ee3\u7801\u793a\u4f8b \u4e3a\u4e86\u66f4\u76f4\u89c2\u5730\u7406\u89e3SELinux\u4e2d\u7684\u7b56\u7565\u7c7b\u578b\uff0c\u4e0b\u9762\u4ee5\u4e00\u4e2a\u7b80\u5355\u7684\u4ee3\u7801\u793a\u4f8b\u6765\u8bf4\u660e\u3002\u5047\u8bbe\u6211\u4eec\u8981\u5b9a\u4e49\u4e00\u4e2aSELinux\u7b56\u7565\u7c7b\u578b\uff0c\u9650\u5236\u4e00\u4e2a\u7528\u6237\u53ea\u80fd\u8bfb\u53d6\u67d0\u4e2a\u7279\u5b9a\u6587\u4ef6\u5939\u4e0b\u7684\u6587\u4ef6\u3002 \u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5b9a\u4e49\u4e00\u4e2atype_t\u7c7b\u578b\uff0c\u8868\u793a\u6587\u4ef6\u5939\u5bf9\u8c61\uff1a type folder_t; \u767b\u5f55\u540e\u590d\u5236 \u7136\u540e\uff0c\u5b9a\u4e49\u4e00\u4e2auser_t\u7c7b\u578b\uff0c\u8868\u793a\u7528\u6237\u5bf9\u8c61\uff1a type user_t; \u767b\u5f55\u540e\u590d\u5236 \u63a5\u7740\uff0c\u5b9a\u4e49\u4e00\u4e2aallow\u89c4\u5219\uff0c\u5141\u8bb8user_t\u7c7b\u578b\u7684\u7528\u6237\u53ea\u8bfb\u53d6folder_t\u7c7b\u578b\u7684\u6587\u4ef6\u5939\u4e0b\u7684\u6587\u4ef6\uff1a allow user_t folder_t:file { read }; 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