{"id":27419,"date":"2023-07-12T23:02:02","date_gmt":"2023-10-14T07:36:58","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8ubuntu%e6%a1%8c%e9%9d%a2%e4%b8%8a%e4%bd%bf%e7%94%a8selinux-4\/"},"modified":"2025-08-12T02:36:18","modified_gmt":"2025-08-11T18:36:18","slug":"%e5%9c%a8ubuntu%e6%a1%8c%e9%9d%a2%e4%b8%8a%e4%bd%bf%e7%94%a8selinux-4","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8ubuntu%e6%a1%8c%e9%9d%a2%e4%b8%8a%e4%bd%bf%e7%94%a8selinux-4\/","title":{"rendered":"\u5728Ubuntu\u684c\u9762\u4e0a\u4f7f\u7528SELinux"},"content":{"rendered":"

\u9996\u5148<\/h3>\n

\u60a8\u662f\u5426\u6b63\u5728\u4f7f\u7528SELinux\uff1f\u60a8\u662f\u5426\u5df2\u7ecf\u5c06\u5176\u7981\u7528\u4e86\u5462\uff1f<\/p>\n

\u3053\u3093\u306b\u3061\u306f\uff01cl0wn\u3067\u3059\uff01TUT\u30a2\u30c9\u30d9\u30f3\u30c8\u30ab\u30ec\u30f3\u30c0\u30fc\u306e\uff18\u65e5\u76ee\u3067\u3059\u3002\u3088\u308d\u3057\u304f\u304a\u306d\u304c\u3044\u3057\u307e\u3059\uff01<\/p>\n

\u6700\u8fd1\u6211\u5728\u7814\u7a76\u4e2d\u4f7f\u7528Ubuntu\u4e0a\u7684SELinux\uff0c\u56e0\u6b64\u60f3\u8981\u5206\u4eab\u4e00\u4e9b\u5728\u6b64\u8fc7\u7a0b\u4e2d\u83b7\u5f97\u7684\u7ecf\u9a8c\u3002<\/p>\n

\u524d\u63d0 t\u00ed)<\/h3>\n

\u8ba9root\u7528\u6237\u53ef\u4ee5\u767b\u5f55\u3002
\n\u8bf7\u4e0d\u8981\u56e0\u4e3a\u53ef\u4ee5\u901a\u8fc7sudo\u4ece\u666e\u901a\u7528\u6237\u5347\u7ea7\u800c\u653e\u5fc3\u3002
\n\u5982\u679c\u8bbe\u7f6e\u51fa\u9519\uff0c\u5c06\u65e0\u6cd5\u4ece\u666e\u901a\u7528\u6237\u5347\u7ea7\u3002<\/p>\n

\u5728\u4e2d\u56fd\uff0c\u53ea\u9700\u8981\u4e00\u79cd\u9009\u62e9\uff0c\u6765\u7528\u4e2d\u6587\u8fdb\u884c\u4ee5\u4e0b\u7684\u91ca\u4e49\uff1a
\nSELinux\u7684\u5b89\u88c5\u3002<\/h3>\n

\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306f\u3053\u3061\u3089\u306e\u8a18\u4e8b\u304c\u53c2\u8003\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3059\u3002<\/p>\n

$ <\/span>sudo <\/span>apt-get install<\/span> -y<\/span> selinux-basics selinux-policy-default selinux-policy-dev selinux-policy-src selinux-utils\r\n$ <\/span>sudo <\/span>selinux-activate\r\n$ <\/span>sudo <\/span>shutdown -r<\/span> now\r\n$ <\/span>check-selinux-installation\r\n$ <\/span>sudo <\/span>apt install<\/span> -y<\/span> auditd\r\n<\/code><\/pre>\n
\u30dd\u30ea\u30b7\u30fc\u306e\u8ffd\u52a0<\/h3>\n
\u4e0a\u306e\u30b3\u30de\u30f3\u30c9\u5165\u529b\u3092\u7d42\u3048\u308b\u3068\u3001SELinux\u306fPermissive\u30e2\u30fc\u30c9\u3067\u52d5\u4f5c\u3059\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u308b\u306f\u305a\u3067\u3059\u3002
\n\u3053\u306e\u30e2\u30fc\u30c9\u306f\u30dd\u30ea\u30b7\u30fc\u9055\u53cd\u304c\u767a\u751f\u3057\u3066\u3082\u52d5\u4f5c\u3092\u62d2\u5426\u305b\u305a\u306b\u3001\u300c\u30dd\u30ea\u30b7\u30fc\u9055\u53cd\u304c\u767a\u751f\u3057\u305f\u3088\u300d\u3068\u3044\u3046\u3053\u3068\u3092\u5831\u544a\u3059\u308b\u3060\u3051\u306e\u30e2\u30fc\u30c9\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n
    \n
  • \n
      \u3069\u306e\u3088\u3046\u306a\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u306e\u30d7\u30ed\u30bb\u30b9\u304c<\/ul>\n<\/li>\n<\/ul>\n
       <\/p>\n
        \n
      • \n
          \u3069\u306e\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8(\u30d5\u30a1\u30a4\u30eb\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af)\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3057\u3066<\/ul>\n<\/li>\n<\/ul>\n
           <\/p>\n
            \u30dd\u30ea\u30b7\u30fc\u304c\u305d\u306e\u64cd\u4f5c\u3092\u3069\u3046\u3057\u305f\u304b<\/ul>\n
            \u304c\u3001\/var\/log\/audit\/audit.log\u306b\u8a18\u9332\u3055\u308c\u307e\u3059\u3002<\/p>\n
            \u3053\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\u3092\u6574\u5f62\u3057\u3066\u8868\u793a\u3057\u3066\u304f\u308c\u308b\u306e\u304causearch\u30b3\u30de\u30f3\u30c9\u3067\u3059\u3002<\/p>\n
            \u3053\u306e\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3063\u3066\u3001\u6700\u8fd1\u3069\u306e\u3088\u3046\u306a\u30a2\u30af\u30bb\u30b9\u53ef\u5426\u306e\u5224\u65ad\u304c\u3055\u308c\u305f\u304b\u3092\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
            $ <\/span>sudo <\/span>ausearch -m<\/span> avc -ts<\/span> recent\r\n----<\/span>\r\ntime->Wed Dec  8 15:06:10 2021\r\ntype<\/span>=<\/span>AVC msg<\/span>=<\/span>audit(<\/span>1638943570.986:724)<\/span>: avc:  denied  {<\/span> search }<\/span> for  <\/span>pid<\/span>=<\/span>271 comm<\/span>=<\/span>\"systemd-journal\"<\/span> name<\/span>=<\/span>\"user\"<\/span> dev<\/span>=<\/span>\"tmpfs\"<\/span> ino<\/span>=<\/span>1201 scontext<\/span>=<\/span>system_u:system_r:syslogd_t:s0 tcontext<\/span>=<\/span>system_u:object_r:user_runtime_root_t:s0 tclass<\/span>=<\/span>dir <\/span>permissive<\/span>=<\/span>1\r\n----<\/span>\r\ntime->Wed Dec  8 15:06:10 2021\r\ntype<\/span>=<\/span>AVC msg<\/span>=<\/span>audit(<\/span>1638943570.986:725)<\/span>: avc:  denied  {<\/span> search }<\/span> for  <\/span>pid<\/span>=<\/span>271 comm<\/span>=<\/span>\"systemd-journal\"<\/span> name<\/span>=<\/span>\"\/\"<\/span> dev<\/span>=<\/span>\"tmpfs\"<\/span> ino<\/span>=<\/span>1 scontext<\/span>=<\/span>system_u:system_r:syslogd_t:s0 tcontext<\/span>=<\/span>unconfined_u:object_r:user_runtime_t:s0 tclass<\/span>=<\/span>dir <\/span>permissive<\/span>=<\/span>1\r\n----<\/span>\r\ntime->Wed Dec  8 15:06:10 2021\r\ntype<\/span>=<\/span>AVC msg<\/span>=<\/span>audit(<\/span>1638943570.986:726)<\/span>: avc:  denied  {<\/span> search }<\/span> for  <\/span>pid<\/span>=<\/span>271 comm<\/span>=<\/span>\"systemd-journal\"<\/span> name<\/span>=<\/span>\"systemd\"<\/span> dev<\/span>=<\/span>\"tmpfs\"<\/span> ino<\/span>=<\/span>9 scontext<\/span>=<\/span>system_u:system_r:syslogd_t:s0 tcontext<\/span>=<\/span>system_u:object_r:user_runtime_t:s0 tclass<\/span>=<\/span>dir <\/span>permissive<\/span>=<\/span>1\r\n----<\/span>\r\ntime->Wed Dec  8 15:06:10 2021\r\ntype<\/span>=<\/span>AVC msg<\/span>=<\/span>audit(<\/span>1638943570.986:727)<\/span>: avc:  denied  {<\/span> read<\/span> }<\/span> for  <\/span>pid<\/span>=<\/span>271 comm<\/span>=<\/span>\"systemd-journal\"<\/span> name<\/span>=<\/span>\"invocation:vte-spawn-440bfdce-96b7-482f-993a-4ed22e47d13d.scope\"<\/span> dev<\/span>=<\/span>\"tmpfs\"<\/span> ino<\/span>=<\/span>94 scontext<\/span>=<\/span>system_u:system_r:syslogd_t:s0 tcontext<\/span>=<\/span>system_u:object_r:user_runtime_t:s0 tclass<\/span>=<\/span>lnk_file permissive<\/span>=<\/span>1\r\n\r\n....\r\n<\/code><\/pre>\n
            audit.log\u306b\u306f\u30b7\u30b9\u30c6\u30e0\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u95a2\u3059\u308b\u591a\u7a2e\u591a\u69d8\u306a\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8a18\u9332\u3055\u308c\u307e\u3059\u3002\u305d\u306e\u4e2d\u3067\u4eca\u56de\u7740\u76ee\u3057\u3066\u3044\u308b\u306e\u306f\u3001\u8ab0\u304c\u3069\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u3001\u30a2\u30af\u30bb\u30b9\u53ef\u5426\u306f\u3069\u3046\u3060\u3063\u305f\u304b\u3068\u3044\u3046\u60c5\u5831\u3067\u3059\u3002\u3053\u306e\u60c5\u5831\u306favc\uff08\u30a2\u30af\u30bb\u30b9\u30d9\u30af\u30bf\u30fc\u30ad\u30e3\u30c3\u30b7\u30e5\uff09\u3068\u547c\u3070\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
            \u4e0a\u306e\u4f8b\u3060\u3068\u3001<\/p>\n
            systemd-journal\u3068\u3044\u3046\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u3044\u308b\u6700\u4e2d\u306b\u3001<\/p>\n
            system_u:system_r:syslogd_t:s0\u3068\u3044\u3046\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u306e\u30d7\u30ed\u30bb\u30b9\u304c\u3001<\/p>\n
            system_u:object_r:user_runtime_root_t:s0\u3068\u3044\u3046\u30e9\u30d9\u30eb\u304c\u3064\u3044\u3066\u3044\u308b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3057\u3066
            \n\u30dd\u30ea\u30b7\u30fc\u9055\u53cd\u3068\u3057\u3066\u62d2\u5426\u3055\u308c\u307e\u3059
            \n\u305f\u3060\u3057\u3001Permissive\u30e2\u30fc\u30c9\u3067\u52d5\u4f5c\u3057\u3066\u3044\u308b\u306e\u3067\u52d5\u4f5c\u306e\u62d2\u5426\u306f\u5b9f\u969b\u306b\u306f\u3055\u308c\u307e\u305b\u3093\u3067\u3057\u305f<\/p>\n
            “\u8fd9\u4e2a\u8bfb\u6cd5\u662f”<\/p>\n
            \u8f6c\u81f3\u6267\u884c\u6a21\u5f0f<\/h3>\n
            \u90a3\u4e48\uff0c\u5982\u679c\u7ee7\u7eed\u5207\u6362\u5230Enforcing\u6a21\u5f0f\uff0c\u91cd\u65b0\u542f\u52a8\u65f6\u4f1a\u5bfc\u81f4\u684c\u9762\u7ba1\u7406\u5668\u8fdd\u53cd\u7b56\u7565\uff0c\u767b\u5f55\u754c\u9762\u5c06\u65e0\u6cd5\u663e\u793a\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u51b3\u5b9a\u6839\u636ePermissive\u6a21\u5f0f\u8bb0\u5f55\u7684\u5ba1\u8ba1\u65e5\u5fd7\u751f\u6210\u5141\u8bb8\u64cd\u4f5c\u7684\u7b56\u7565\uff0c\u5e76\u52a0\u8f7d\u5230\u7cfb\u7edf\u4e2d\u3002<\/p>\n
            \u8bf7\u5728\u6839\u76ee\u5f55\u4e0b\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u3002<\/p>\n
            $ <\/span>audit2allow -a<\/span> -M<\/span> new_policy\r\n********************<\/span> IMPORTANT ***********************<\/span>\r\nTo make this policy package active, execute:\r\n\r\nsemodule -i<\/span> new_policy.pp\r\n\r\n\r\n$ <\/span>semodule -i<\/span> new_policy.pp\r\n<\/code><\/pre>\n
            \u4ece audit.log \u7684\u6240\u6709\u5185\u5bb9 (-a) \u4e2d\uff0c\u6211\u4f7f\u7528\u540d\u79f0\u4e3a new_policy (-M new_policy) \u521b\u5efa\u4e86\u4e00\u4e2a\u7b56\u7565\u3002
            \n\u6211\u5c06\u786e\u8ba4\u6a21\u5757\u662f\u5426\u6b63\u786e\u52a0\u8f7d\u3002\u5982\u679c\u8f93\u51fa\u4e2d\u5305\u542b new_policy\uff0c\u5219\u8868\u793a\u5df2\u6b63\u786e\u52a0\u8f7d\u3002<\/p>\n
            $ <\/span>semodule -l<\/span>\r\n\r\n...\r\nnew_policy\r\n\r\n....\r\n\r\n<\/code><\/pre>\n
            \u597d\u7684\uff0c\u73b0\u5728\u6211\u4eec\u6765\u8fdb\u5165\u5f3a\u5236\u6a21\u5f0f\u3002<\/p>\n
            \u6211\u8981\u4fee\u6539\/etc\/selinux\/config\u6587\u4ef6\u3002<\/p>\n
            \u5c06\u4ee5\u4e0b\u5185\u5bb9\u7528\u4e2d\u6587\u91cd\u65b0\u53d9\u8ff0\uff0c\u53ea\u9700\u8981\u63d0\u4f9b\u4e00\u79cd\u9009\u62e9\uff1a
            \n\u8fd9\u91cc<\/p>\n
            SELINUX=permissive\r\n<\/code><\/pre>\n
            \u5c06\u5982\u6b64\u66f4\u6539\u3002<\/p>\n
            SELINUX=enforcing\r\n<\/code><\/pre>\n
            \u5f53\u66f4\u6539\u5b8c\u6210\u540e\uff0c\u8bf7\u91cd\u65b0\u542f\u52a8\u3002<\/p>\n
            \u5982\u679c\u60a8\u91cd\u65b0\u542f\u52a8\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0\u684c\u9762\u73af\u5883\u767b\u5f55\u754c\u9762\u65e0\u6cd5\u6b63\u786e\u663e\u793a\u7684\u60c5\u51b5\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u8bf7\u5207\u6362\u5230TTY\uff0c\u5e76\u4ee5root\u8eab\u4efd\u767b\u5f55\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528Ctrl + Alt + F3\u6216\u7c7b\u4f3c\u7684\u6309\u952e\u7ec4\u5408\u6765\u5207\u6362TTY\u3002<\/p>\n
            \u5982\u679c\u80fd\u591f\u4ee5root\u8eab\u4efd\u767b\u5f55\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528audit2allow\u547d\u4ee4\u6765\u521b\u5efa\u5e76\u52a0\u8f7d\u7b56\u7565\uff0c\u65b9\u6cd5\u4e0e\u4e4b\u524d\u76f8\u540c\u3002\u7b56\u7565\u7684\u540d\u79f0\u53ef\u4ee5\u76f8\u540c\u4e5f\u53ef\u4ee5\u4e0d\u540c\uff0c\u6ca1\u6709\u5173\u7cfb\u3002<\/p>\n
            \u52d5\u4f5c\u78ba\u8a8d\uff06audit2allow\u3092\u4f55\u56de\u304b\u7e70\u308a\u8fd4\u3059\u3068\u3001\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\u74b0\u5883\u304c\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
            \u8bf7\u63d0\u4f9b\u66f4\u591a\u4e0a\u4e0b\u6587\u4fe1\u606f\u6765\u5e2e\u52a9\u6211\u6b63\u786e\u5730\u56de\u7b54\u60a8\u7684\u95ee\u9898\u3002<\/h3>\n
            \u6211\u4f1a\u5728\u8fd9\u91cc\u5206\u4eab\u4e00\u7bc7\u5bf9\u4f7f\u7528SELinux\u975e\u5e38\u6709\u5e2e\u52a9\u7684\u6587\u7ae0\u3002
            \n\u8001\u5b9e\u8bf4\uff0c\u5e0c\u671b\u4f60\u770b\u8fd9\u7bc7\u6587\u7ae0\u800c\u4e0d\u662f\u6211\u7684\u6587\u7ae0\uff01\uff01\uff01
            \n\u5982\u679c\u4f60\u6253\u7b97\u81ea\u5df1\u8fd0\u7528SELinux\uff0c\u4f60\u5c06\u4f1a\u660e\u767d\u5e94\u8be5\u505a\u4e9b\u4ec0\u4e48\u3002
            \n\u5728\u6211\u7684\u7814\u7a76\u4e2d\uff0c\u6211\u4e5f\u4ece\u4e2d\u53d7\u76ca\u826f\u591a\u3002\u5728\u6b64\u501f\u6b64\u673a\u4f1a\u8868\u793a\u611f\u8c22\u3002<\/p>\n
            \u6700\u540e<\/h3>\n
            \u60a8\u6b63\u5728\u4f7f\u7528SELinux\u5417\uff1f\u60a8\u662f\u5426\u5c06\u5176\u7981\u7528\u4e86\uff1f<\/p>\n
            \u6211\u662f\u6b8b\u75be\u4eba\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
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