{"id":51432,"date":"2024-12-03T16:47:27","date_gmt":"2024-12-03T08:47:27","guid":{"rendered":"https:\/\/fwq.ai\/blog\/51432\/"},"modified":"2024-12-03T16:47:27","modified_gmt":"2024-12-03T08:47:27","slug":"%e6%8e%8f%e6%8e%98selinux%e4%b8%89%e7%a7%8d%e5%b7%a5%e4%bd%9c%e6%96%b9%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/51432\/","title":{"rendered":"\u638f\u6398SELinux\u4e09\u79cd\u5de5\u4f5c\u65b9\u5f0f"},"content":{"rendered":"

<\/b> <\/p>\n

\u638f\u6398SELinux\u4e09\u79cd\u5de5\u4f5c\u65b9\u5f0f<\/h1>\n<\/p>\n

SELinux\uff08Security-Enhanced Linux\uff09\u662f\u4e00\u4e2a\u5728Linux\u7cfb\u7edf\u4e2d\u5b9e\u73b0\u5f3a\u5236\u8bbf\u95ee\u63a7\u5236\uff08MAC\uff09\u7684\u5b89\u5168\u6a21\u5757\u3002\u5b83\u901a\u8fc7\u5c06\u6807\u7b7e\u5e94\u7528\u5230\u7cfb\u7edf\u5bf9\u8c61\uff08\u6587\u4ef6\u3001\u8fdb\u7a0b\u7b49\uff09\u6765\u5f3a\u5236\u6267\u884c\u5b89\u5168\u7b56\u7565\uff0c\u4ee5\u5b9e\u73b0\u66f4\u7ec6\u7c92\u5ea6\u7684\u8bbf\u95ee\u63a7\u5236\u3002SELinux\u6709\u4e09\u79cd\u5de5\u4f5c\u6a21\u5f0f\uff1aEnforcing\u3001Permissive\u548cDisabled\uff0c\u672c\u6587\u5c06\u5bf9\u8fd9\u4e09\u79cd\u6a21\u5f0f\u8fdb\u884c\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5e76\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

1. Enforcing\u6a21\u5f0f<\/strong><\/p>\n

Enforcing\u6a21\u5f0f\u662f\u6700\u5b89\u5168\u4e14\u63a8\u8350\u4f7f\u7528\u7684\u6a21\u5f0f\uff0c\u5b83\u5f3a\u5236\u6267\u884cSELinux\u7b56\u7565\u5e76\u5bf9\u8fdd\u89c4\u884c\u4e3a\u8fdb\u884c\u62d2\u7edd\u548c\u8bb0\u5f55\u3002\u5728Enforcing\u6a21\u5f0f\u4e0b\uff0c\u7cfb\u7edf\u4f1a\u62d2\u7edd\u672a\u7ecf\u8bb8\u53ef\u7684\u8bbf\u95ee\uff0c\u5e76\u751f\u6210\u76f8\u5e94\u7684\u65e5\u5fd7\u8bb0\u5f55\u3002\u4e3a\u4e86\u7406\u89e3Enforcing\u6a21\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u4ee3\u7801\u793a\u4f8b\u6765\u6f14\u793a\u5982\u4f55\u8bbe\u7f6e\u6587\u4ef6\u7684SELinux\u6807\u7b7e\u5e76\u5c1d\u8bd5\u8bbf\u95ee\uff1a<\/p>\n

# \u521b\u5efa\u6d4b\u8bd5\u6587\u4ef6\ntouch testfile\n\n# \u67e5\u770b\u6587\u4ef6\u7684SELinux\u6807\u7b7e\nls -Z testfile\n\n# \u4fee\u6539\u6587\u4ef6\u7684SELinux\u6807\u7b7e\u4e3ahttpd_sys_content_t\u7c7b\u578b\nchcon -t httpd_sys_content_t testfile\n\n# \u5c1d\u8bd5\u8bbf\u95ee\u6587\u4ef6\ncat testfile<\/pre>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3atestfile\u7684\u6587\u4ef6\uff0c\u5e76\u5c06\u5176SELinux\u6807\u7b7e\u8bbe\u7f6e\u4e3ahttpd_sys_content_t\u7c7b\u578b\u3002\u5c1d\u8bd5\u8bfb\u53d6\u8fd9\u4e2a\u6587\u4ef6\u65f6\uff0c\u7531\u4e8e\u8be5\u6587\u4ef6\u7684\u6807\u7b7e\u4e0e\u5f53\u524d\u8fdb\u7a0b\u7684\u57d9\u6807\u7b7e\u4e0d\u5339\u914d\uff0c\u4f1a\u5bfc\u81f4\u8bbf\u95ee\u88ab\u62d2\u7edd\u3002<\/p>\n
2. Permissive\u6a21\u5f0f<\/strong><\/p>\n
Permissive\u6a21\u5f0f\u5141\u8bb8\u7cfb\u7edf\u7ba1\u7406\u5458\u6d4b\u8bd5SELinux\u7b56\u7565\u800c\u4e0d\u4f1a\u5b9e\u9645\u62e6\u622a\u4efb\u4f55\u8bbf\u95ee\u8bf7\u6c42\u3002\u5728Permissive\u6a21\u5f0f\u4e0b\uff0cSELinux\u4f1a\u8bb0\u5f55\u8fdd\u89c4\u8bbf\u95ee\uff0c\u4f46\u4e0d\u4f1a\u5bf9\u5176\u8fdb\u884c\u62d2\u7edd\u3002\u8fd9\u79cd\u6a21\u5f0f\u901a\u5e38\u7528\u4e8e\u8c03\u8bd5\u548c\u6d4b\u8bd5\u65b0\u7684SELinux\u7b56\u7565\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u6f14\u793a\u5982\u4f55\u5728Permissive\u6a21\u5f0f\u4e0b\u67e5\u770b\u65e5\u5fd7\u8bb0\u5f55\uff1a<\/p>\n
# \u67e5\u770b\u5f53\u524dSELinux\u6a21\u5f0f\nsestatus\n\n# \u5207\u6362SELinux\u6a21\u5f0f\u4e3aPermissive\nsetenforce 0\n\n# \u5c1d\u8bd5\u8bbf\u95ee\u88ab\u7981\u6b62\u7684\u6587\u4ef6\ncat \/etc\/shadow\n\n# \u67e5\u770bSELinux\u65e5\u5fd7\u8bb0\u5f55\ncat \/var\/log\/audit\/audit.log<\/pre>\n
\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5c06SELinux\u6a21\u5f0f\u5207\u6362\u4e3aPermissive\uff0c\u5e76\u5c1d\u8bd5\u8bfb\u53d6\/etc\/shadow\u6587\u4ef6\uff0c\u6b64\u65f6\u65e5\u5fd7\u8bb0\u5f55\u4f1a\u663e\u793a\u6709\u5173\u88ab\u7981\u6b62\u8bbf\u95ee\u7684\u4fe1\u606f\uff0c\u4f46\u5b9e\u9645\u8bbf\u95ee\u4ecd\u4f1a\u88ab\u5141\u8bb8\u3002<\/p>\n
3. Disabled\u6a21\u5f0f<\/strong><\/p>\n
Disabled\u6a21\u5f0f\u4f1a\u5b8c\u5168\u7981\u7528SELinux\uff0c\u53d6\u6d88\u4efb\u4f55\u4e0eSELinux\u76f8\u5173\u7684\u8bbf\u95ee\u63a7\u5236\u548c\u4fdd\u62a4\u63aa\u65bd\u3002\u8fd9\u662f\u6700\u4e0d\u63a8\u8350\u7684\u6a21\u5f0f\uff0c\u56e0\u4e3a\u7cfb\u7edf\u7684\u5b89\u5168\u6027\u5c06\u53d7\u5230\u5f71\u54cd\u3002\u5728Disabled\u6a21\u5f0f\u4e0b\uff0c\u7cfb\u7edf\u5c06\u4e0d\u4f1a\u6267\u884cSELinux\u7b56\u7565\uff0c\u4e5f\u4e0d\u4f1a\u8bb0\u5f55\u4efb\u4f55\u8fdd\u89c4\u8bbf\u95ee\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u6f14\u793a\u5982\u4f55\u7981\u7528SELinux\uff1a<\/p>\n
# \u67e5\u770b\u5f53\u524dSELinux\u6a21\u5f0f\nsestatus\n\n# \u7981\u7528SELinux\nsetenforce 0\n\n# \u67e5\u770b\u5f53\u524dSELinux\u6a21\u5f0f\nsestatus<\/pre>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7setenforce\u547d\u4ee4\u5c06SELinux\u7981\u7528\uff0c\u5e76\u901a\u8fc7sestatus\u547d\u4ee4\u9a8c\u8bc1\u4e86SELinux\u5df2\u5904\u4e8eDisabled\u6a21\u5f0f\u3002<\/p>\n
\u603b\u7ed3\uff1a\u7406\u89e3SELinux\u7684\u4e09\u79cd\u5de5\u4f5c\u6a21\u5f0f\u5bf9\u4e8e\u7cfb\u7edf\u5b89\u5168\u548c\u8bbf\u95ee\u63a7\u5236\u81f3\u5173\u91cd\u8981\u3002Enforcing\u6a21\u5f0f\u63d0\u4f9b\u6700\u9ad8\u7ea7\u522b\u7684\u4fdd\u62a4\uff0cPermissive\u6a21\u5f0f\u7528\u4e8e\u8c03\u8bd5\u548c\u6d4b\u8bd5\uff0c\u800cDisabled\u6a21\u5f0f\u5e94\u8be5\u5c3d\u91cf\u907f\u514d\u4f7f\u7528\u4ee5\u786e\u4fdd\u7cfb\u7edf\u7684\u5b89\u5168\u6027\u3002\u901a\u8fc7\u4ee5\u4e0a\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u5e0c\u671b\u8bfb\u8005\u80fd\u66f4\u52a0\u6df1\u5165\u5730\u7406\u89e3SELinux\u7684\u5de5\u4f5c\u6a21\u5f0f\u53ca\u5176\u4f18\u52a3\u52bf\u3002<\/p>\n
\u672c\u7bc7\u5173\u4e8e\u300a\u638f\u6398SELinux\u4e09\u79cd\u5de5\u4f5c\u65b9\u5f0f\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff01<\/p>\n
\n
<\/dt>\n
\n   \u5982\u4f55\u5728\u76f8\u540c\u7684\u547d\u540d\u7a7a\u95f4\u4e2d\u62e5\u6709\u4e24\u4e2a\u76f8\u540c\u7684\u8d44\u6e90\u526f\u672c\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
\u638f\u6398SELinux\u4e09\u79cd\u5de5\u4f5c\u65b9\u5f0f SELinux\uff08Security-Enhanced Linux\uff09\u662f\u4e00\u4e2a\u5728Linux\u7cfb\u7edf\u4e2d\u5b9e\u73b0\u5f3a\u5236\u8bbf\u95ee\u63a7\u5236\uff08MAC\uff09\u7684\u5b89\u5168\u6a21\u5757\u3002\u5b83\u901a\u8fc7\u5c06\u6807\u7b7e\u5e94\u7528\u5230\u7cfb\u7edf\u5bf9\u8c61\uff08\u6587\u4ef6\u3001\u8fdb\u7a0b\u7b49\uff09\u6765\u5f3a\u5236\u6267\u884c\u5b89\u5168\u7b56\u7565\uff0c\u4ee5\u5b9e\u73b0\u66f4\u7ec6\u7c92\u5ea6\u7684\u8bbf\u95ee\u63a7\u5236\u3002SELinux\u6709\u4e09\u79cd\u5de5\u4f5c\u6a21\u5f0f\uff1aEnforcing\u3001Permissive\u548cDisabled\uff0c\u672c\u6587\u5c06\u5bf9\u8fd9\u4e09\u79cd\u6a21\u5f0f\u8fdb\u884c\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5e76\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002 1. Enforcing\u6a21\u5f0f Enforcing\u6a21\u5f0f\u662f\u6700\u5b89\u5168\u4e14\u63a8\u8350\u4f7f\u7528\u7684\u6a21\u5f0f\uff0c\u5b83\u5f3a\u5236\u6267\u884cSELinux\u7b56\u7565\u5e76\u5bf9\u8fdd\u89c4\u884c\u4e3a\u8fdb\u884c\u62d2\u7edd\u548c\u8bb0\u5f55\u3002\u5728Enforcing\u6a21\u5f0f\u4e0b\uff0c\u7cfb\u7edf\u4f1a\u62d2\u7edd\u672a\u7ecf\u8bb8\u53ef\u7684\u8bbf\u95ee\uff0c\u5e76\u751f\u6210\u76f8\u5e94\u7684\u65e5\u5fd7\u8bb0\u5f55\u3002\u4e3a\u4e86\u7406\u89e3Enforcing\u6a21\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u4ee3\u7801\u793a\u4f8b\u6765\u6f14\u793a\u5982\u4f55\u8bbe\u7f6e\u6587\u4ef6\u7684SELinux\u6807\u7b7e\u5e76\u5c1d\u8bd5\u8bbf\u95ee\uff1a # \u521b\u5efa\u6d4b\u8bd5\u6587\u4ef6 touch testfile # \u67e5\u770b\u6587\u4ef6\u7684SELinux\u6807\u7b7e ls -Z testfile # \u4fee\u6539\u6587\u4ef6\u7684SELinux\u6807\u7b7e\u4e3ahttpd_sys_content_t\u7c7b\u578b chcon -t httpd_sys_content_t testfile # \u5c1d\u8bd5\u8bbf\u95ee\u6587\u4ef6 cat testfile \u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3atestfile\u7684\u6587\u4ef6\uff0c\u5e76\u5c06\u5176SELinux\u6807\u7b7e\u8bbe\u7f6e\u4e3ahttpd_sys_content_t\u7c7b\u578b\u3002\u5c1d\u8bd5\u8bfb\u53d6\u8fd9\u4e2a\u6587\u4ef6\u65f6\uff0c\u7531\u4e8e\u8be5\u6587\u4ef6\u7684\u6807\u7b7e\u4e0e\u5f53\u524d\u8fdb\u7a0b\u7684\u57d9\u6807\u7b7e\u4e0d\u5339\u914d\uff0c\u4f1a\u5bfc\u81f4\u8bbf\u95ee\u88ab\u62d2\u7edd\u3002 2. Permissive\u6a21\u5f0f Permissive\u6a21\u5f0f\u5141\u8bb8\u7cfb\u7edf\u7ba1\u7406\u5458\u6d4b\u8bd5SELinux\u7b56\u7565\u800c\u4e0d\u4f1a\u5b9e\u9645\u62e6\u622a\u4efb\u4f55\u8bbf\u95ee\u8bf7\u6c42\u3002\u5728Permissive\u6a21\u5f0f\u4e0b\uff0cSELinux\u4f1a\u8bb0\u5f55\u8fdd\u89c4\u8bbf\u95ee\uff0c\u4f46\u4e0d\u4f1a\u5bf9\u5176\u8fdb\u884c\u62d2\u7edd\u3002\u8fd9\u79cd\u6a21\u5f0f\u901a\u5e38\u7528\u4e8e\u8c03\u8bd5\u548c\u6d4b\u8bd5\u65b0\u7684SELinux\u7b56\u7565\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u6f14\u793a\u5982\u4f55\u5728Permissive\u6a21\u5f0f\u4e0b\u67e5\u770b\u65e5\u5fd7\u8bb0\u5f55\uff1a # \u67e5\u770b\u5f53\u524dSELinux\u6a21\u5f0f sestatus # \u5207\u6362SELinux\u6a21\u5f0f\u4e3aPermissive setenforce 0 # \u5c1d\u8bd5\u8bbf\u95ee\u88ab\u7981\u6b62\u7684\u6587\u4ef6 cat \/etc\/shadow # \u67e5\u770bSELinux\u65e5\u5fd7\u8bb0\u5f55 cat \/var\/log\/audit\/audit.log \u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5c06SELinux\u6a21\u5f0f\u5207\u6362\u4e3aPermissive\uff0c\u5e76\u5c1d\u8bd5\u8bfb\u53d6\/etc\/shadow\u6587\u4ef6\uff0c\u6b64\u65f6\u65e5\u5fd7\u8bb0\u5f55\u4f1a\u663e\u793a\u6709\u5173\u88ab\u7981\u6b62\u8bbf\u95ee\u7684\u4fe1\u606f\uff0c\u4f46\u5b9e\u9645\u8bbf\u95ee\u4ecd\u4f1a\u88ab\u5141\u8bb8\u3002 3. Disabled\u6a21\u5f0f Disabled\u6a21\u5f0f\u4f1a\u5b8c\u5168\u7981\u7528SELinux\uff0c\u53d6\u6d88\u4efb\u4f55\u4e0eSELinux\u76f8\u5173\u7684\u8bbf\u95ee\u63a7\u5236\u548c\u4fdd\u62a4\u63aa\u65bd\u3002\u8fd9\u662f\u6700\u4e0d\u63a8\u8350\u7684\u6a21\u5f0f\uff0c\u56e0\u4e3a\u7cfb\u7edf\u7684\u5b89\u5168\u6027\u5c06\u53d7\u5230\u5f71\u54cd\u3002\u5728Disabled\u6a21\u5f0f\u4e0b\uff0c\u7cfb\u7edf\u5c06\u4e0d\u4f1a\u6267\u884cSELinux\u7b56\u7565\uff0c\u4e5f\u4e0d\u4f1a\u8bb0\u5f55\u4efb\u4f55\u8fdd\u89c4\u8bbf\u95ee\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u6f14\u793a\u5982\u4f55\u7981\u7528SELinux\uff1a # \u67e5\u770b\u5f53\u524dSELinux\u6a21\u5f0f sestatus # \u7981\u7528SELinux setenforce 0 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-51432","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/51432","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=51432"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/51432\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=51432"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=51432"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=51432"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}