{"id":1027,"date":"2016-07-28T03:54:27","date_gmt":"2016-07-27T19:54:27","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=1027"},"modified":"2016-07-28T03:54:27","modified_gmt":"2016-07-27T19:54:27","slug":"%e6%9f%a5%e7%9c%8bseliuxin%e7%8a%b6%e6%80%81%e5%8f%8a%e5%85%b3%e9%97%adselinux","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/hemanual\/%e6%9f%a5%e7%9c%8bseliuxin%e7%8a%b6%e6%80%81%e5%8f%8a%e5%85%b3%e9%97%adselinux\/","title":{"rendered":"\u67e5\u770bSELiuxin\u72b6\u6001\u53ca\u5173\u95edSELinux"},"content":{"rendered":"

<1>SELinux \u6a21\u5f0f<\/p>\n

\u5e76\u975e\u6240\u6709Linux distributions\u90fd\u652f\u6301SELinux,\u76ee\u524dSELinux \u652f\u6301\u4e09\u79cd\u6a21\u5f0f,\u5206\u522b\u5982\u4e0b:<\/p>\n

*enforcing(\u5f3a\u5236\u6a21\u5f0f),\u4ee3\u8868SELinux\u8fd0\u4f5c\u4e2d,\u4e14\u5df2\u7ecf\u6b63\u786e\u7684\u5f00\u59cb\u9650\u5236domain\/type\u4e86;<\/p>\n

 <\/p>\n

*permissive(\u5bbd\u5bb9\u6a21\u5f0f),\u4ee3\u8868SELinux\u8fd0\u4f5c\u4e2d,\u4e0d\u8fc7\u4ec5\u4f1a\u6709\u8b66\u544a\u8baf\u606f\u5e76\u4e0d\u4f1a\u5b9e\u9645\u9650\u5236domain\/type\u7684\u5b58\u53d6,\u8fd9\u79cd\u6a21\u5f0f\u53ef\u4ee5\u7528\u6765\u4f5c\u4e3aSELinux\u7684debug\u4e4b\u7528;<\/p>\n

 <\/p>\n

*disabled(\u5173\u95ed),SELinux\u5e76\u6ca1\u6709\u5b9e\u9645\u8fd0\u4f5c;<\/p>\n

 <\/p>\n

<2>\u67e5\u770bSELinux\u6a21\u5f0f<\/p>\n

\u547d\u4ee4 : getenforce<\/p>\n

[root@sqj ~]# getenforce<\/p>\n

Enforcing \u00a0\u00a0\u00a0<==\u663e\u793a\u5f53\u524d\u7684\u6a21\u5f0f\u4e3aEnforcing<\/p>\n

 <\/p>\n

<3>\u67e5\u770bSELinux\u7684\u653f\u7b56(Policy)<\/p>\n

[root@sqj ~]# sestatus<\/p>\n

SELinux status: \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0enabled<\/p>\n

SELinuxfs mount: \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/selinux \u00a0<==SELinux\u7684\u76f8\u5173\u6587\u4ef6\u8d44\u6599\u6302\u8f7d\u70b9<\/p>\n

Current mode: \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0enforcing <==\u76ee\u524d\u7684\u6a21\u5f0f<\/p>\n

Mode from config file: \u00a0\u00a0enforcing <==\u8bbe\u5b9a\u6863\u6307\u5b9a\u7684\u6a21\u5f0f<\/p>\n

Policy version: \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a024<\/p>\n

Policy from config file: targeted \u00a0<==\u76ee\u524d\u7684\u653f\u7b56<\/p>\n

 <\/p>\n

 <\/p>\n

<4>\u901a\u8fc7\u914d\u7f6e\u6587\u4ef6(\/etc\/selinux\/config)\u8c03\u6574SELinux\u7684\u53c2\u6570<\/p>\n

[root@sqj ~]# vi \/etc\/selinux\/config<\/p>\n

# This file controls the state of SELinux on the system.<\/p>\n

# SELINUX= can take one of these three values:<\/p>\n

# \u00a0\u00a0\u00a0\u00a0enforcing – SELinux security policy is enforced.<\/p>\n

# \u00a0\u00a0\u00a0\u00a0permissive – SELinux prints warnings instead of enforcing.<\/p>\n

# \u00a0\u00a0\u00a0\u00a0disabled – No SELinux policy is loaded.<\/p>\n

SELINUX=enforcing \u00a0\u00a0<==\u542f\u52a8\u6a21\u5f0f<\/p>\n

# SELINUXTYPE= can take one of these two values:<\/p>\n

# \u00a0\u00a0\u00a0\u00a0targeted – Targeted processes are protected,<\/p>\n

# \u00a0\u00a0\u00a0\u00a0mls – Multi Level Security protection.<\/p>\n

SELINUXTYPE=targeted \u00a0<==\u9884\u8bbe\u653f\u7b56<\/p>\n

\u6ce8: \u65e0\u8bba\u662f\u542f\u52a8\u6a21\u5f0f\u6216\u9884\u8bbe\u653f\u7b56\u4fee\u6539,\u90fd\u9700\u8981\u91cd\u542f\u624d\u80fd\u751f\u6548.<\/p>\n

 <\/p>\n

<5>\u67e5\u770bSELinux\u72b6\u6001<\/p>\n

\u547d\u4ee4 : \/usr\/sbin\/sestatus -v<\/p>\n

 <\/p>\n

[root@sqj ~]# \/usr\/sbin\/sestatus -v<\/p>\n

SELinux status: \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0enabled<\/p>\n

SELinuxfs mount: \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/selinux<\/p>\n

Current mode: \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0enforcing<\/p>\n

Mode from config file: \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0enforcing<\/p>\n

Policy version: \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a024<\/p>\n

Policy from config file: \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0targeted<\/p>\n

 <\/p>\n

<6>\u5173\u95edSELinux\u7684\u65b9\u6cd5<\/p>\n

* \u4fee\u6539\/etc\/selinux\/config\u6587\u4ef6\u4e2d\u7684SELINUX=\u201d\u201d\u4e3adisabled,\u7136\u540e\u91cd\u542f;<\/p>\n

 <\/p>\n

*\u82e5\u4e0d\u60f3\u91cd\u542f\u7cfb\u7edf,\u4f7f\u7528\u547d\u4ee4setenforce 0<\/p>\n

\u6ce8:<\/p>\n

setenforce 1 \u8bbe\u7f6eSELinux\u4e3aenforcing\u6a21\u5f0f;<\/p>\n

setenforce 0 \u8bbe\u7f6eSELinux\u4e3apermissive\u6a21\u5f0f;<\/p>\n

\u540c\u6837,\u5728grub\u7684\u542f\u52a8\u53c2\u6570\u4e2d\u589e\u52a0selinux=0\u4e5f\u53ef\u4ee5\u5173\u95edSELinux.<\/p>\n

 <\/p>\n

*\u5feb\u901f\u5173\u95edSELinux<\/p>\n

\/usr\/sbin\/setenforce 0 \u7acb\u523b\u5173\u95edSELinux<\/p>\n

\/usr\/sbin\/setenforce 1 \u7acb\u523b\u542f\u7528SELinux<\/p>\n

\u53ef\u4ee5\u52a0\u5165\u7cfb\u7edf\u542f\u52a8\u91cc\u9762<\/p>\n

echo \u201c\/usr\/sbin\/setenforce 0\u201d\u00a0>>\/etc\/rc\/local<\/p>\n

\u8fd9\u6837,\u6211\u4eec\u5c31\u4e0d\u9700\u8981\u518dcentos\u7cfb\u7edf\u4e2d\u5f00\u542fSELinux,\u5c31\u53ef\u4ee5\u5feb\u901f\u5173\u95ed\u4e86,\u4ee5\u53ca\u5728\u9700\u8981\u7684\u65f6\u5019,\u518d\u5f00\u542f\u5b83.<\/p>\n","protected":false},"excerpt":{"rendered":"

<1>SELinux \u6a21\u5f0f \u5e76\u975e\u6240\u6709Linux distributions\u90fd\u652f\u6301SELinux,\u76ee … \u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3,49],"tags":[38,348],"class_list":["post-1027","post","type-post","status-publish","format-standard","hentry","category-hemanual","category-linux","tag-linux","tag-selinux"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/1027","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/comments?post=1027"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/1027\/revisions"}],"predecessor-version":[{"id":1028,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/1027\/revisions\/1028"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=1027"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=1027"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=1027"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}