{"id":92,"date":"2010-05-20T19:48:11","date_gmt":"2010-05-20T19:48:11","guid":{"rendered":"http:\/\/92cc227532d17e56e07902b254dfad10"},"modified":"2017-11-30T10:19:30","modified_gmt":"2017-11-30T02:19:30","slug":"selinux","status":"publish","type":"post","link":"https:\/\/www.xiaobo.li\/notes\/archives\/92","title":{"rendered":"SELinux"},"content":{"rendered":"<p><span style=\"font-size: large;\">SELinux(Security-Enhanced Linux) \u662f<\/span><br \/>\n<a href=\"http:\/\/baike.baidu.com\/view\/14954.htm\" target=\"_blank\" rel=\"noopener\"><span style=\"font-size: large;\">\u7f8e\u56fd\u56fd\u5bb6\u5b89\u5168\u5c40<\/span><br \/>\n<\/a><br \/>\n<span style=\"font-size: large;\">\uff08NAS\uff09\u5bf9\u4e8e\u5f3a\u5236\u8bbf\u95ee\u63a7\u5236\u7684\u5b9e\u73b0\uff0c\u662f Linux&amp;reg; \u4e0a\u6700\u6770\u51fa\u7684\u65b0\u5b89\u5168\u5b50\u7cfb\u7edf\u3002NSA\u662f\u5728Linux\u793e\u533a\u7684\u5e2e\u52a9\u4e0b\u5f00\u53d1\u4e86\u4e00\u79cd\u8bbf\u95ee\u63a7\u5236\u4f53\u7cfb\uff0c\u5728\u8fd9\u79cd\u8bbf\u95ee\u63a7\u5236\u4f53\u7cfb\u7684\u9650\u5236\u4e0b\uff0c\u8fdb\u7a0b\u53ea\u80fd\u8bbf\u95ee\u90a3\u4e9b\u5728\u4ed6\u7684\u4efb\u52a1\u4e2d\u6240\u9700\u8981\u6587\u4ef6\u3002SELinux \u9ed8\u8ba4\u5b89\u88c5\u5728 Fedora \u548c Red Hat Enterprise Linux \u4e0a\uff0c\u4e5f\u53ef\u4ee5\u4f5c\u4e3a\u5176\u4ed6\u53d1\u884c\u7248\u4e0a\u5bb9\u6613\u5b89\u88c5\u7684\u5305\u5f97\u5230\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000SELinux \u662f 2.6 \u7248\u672c\u7684 Linux \u5185\u6838\u4e2d\u63d0\u4f9b\u7684\u5f3a\u5236\u8bbf\u95ee\u63a7\u5236 (MAC)\u7cfb\u7edf\u3002\u5bf9\u4e8e\u76ee\u524d\u53ef\u7528\u7684 Linux \u5b89\u5168\u6a21\u5757\u6765\u8bf4\uff0cSELinux \u662f\u529f\u80fd\u6700\u5168\u9762\uff0c\u800c\u4e14\u6d4b\u8bd5\u6700\u5145\u5206\u7684\uff0c\u5b83\u662f\u5728 20 \u5e74\u7684 MAC \u7814\u7a76\u57fa\u7840\u4e0a\u5efa\u7acb\u7684\u3002SELinux \u5728\u7c7b\u578b\u5f3a\u5236\u670d\u52a1\u5668\u4e2d\u5408\u5e76\u4e86\u591a\u7ea7\u5b89\u5168\u6027\u6216\u4e00\u79cd\u53ef\u9009\u7684\u591a\u7c7b\u7b56\u7565\uff0c\u5e76\u91c7\u7528\u4e86\u57fa\u4e8e\u89d2\u8272\u7684\u8bbf\u95ee\u63a7\u5236\u6982\u5ff5\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u5927\u90e8\u5206\u4f7f\u7528 SELinux \u7684\u4eba\u4f7f\u7528\u7684\u90fd\u662f SELinux \u5c31\u7eea\u7684\u53d1\u884c\u7248\uff0c\u4f8b\u5982 Fedora\u3001Red Hat Enterprise Linux (RHEL)\u3001Debian \u6216 Gentoo\u3002\u5b83\u4eec\u90fd\u662f\u5728\u5185\u6838\u4e2d\u542f\u7528 SELinux \u7684\uff0c\u5e76\u4e14\u63d0\u4f9b\u4e00\u4e2a\u53ef\u5b9a\u5236\u7684\u5b89\u5168\u7b56\u7565\uff0c\u8fd8\u63d0\u4f9b\u5f88\u591a\u7528\u6237\u5c42\u7684\u5e93\u548c\u5de5\u5177\uff0c\u5b83\u4eec\u90fd\u53ef\u4ee5\u4f7f\u7528 SELinux \u7684\u529f\u80fd\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000SELinux\u662f\u4e00\u79cd\u57fa\u4e8e \u57df-\u7c7b\u578b \u6a21\u578b\uff08domain-type\uff09\u7684\u5f3a\u5236\u8bbf\u95ee\u63a7\u5236\uff08MAC\uff09\u5b89\u5168\u7cfb\u7edf\uff0c\u5b83\u7531NSA\u7f16\u5199\u5e76\u8bbe\u8ba1\u6210\u5185\u6838\u6a21\u5757\u5305\u542b\u5230\u5185\u6838\u4e2d\uff0c\u76f8\u5e94\u7684\u67d0\u4e9b\u5b89\u5168\u76f8\u5173\u7684\u5e94\u7528\u4e5f\u88ab\u6253\u4e86SELinux\u7684\u8865\u4e01\uff0c\u6700\u540e\u8fd8\u6709\u4e00\u4e2a\u76f8\u5e94\u7684\u5b89\u5168\u7b56\u7565\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u4f17\u6240\u5468\u77e5\uff0c\u6807\u51c6\u7684UNIX\u5b89\u5168\u6a21\u578b\u662f\"\u4efb\u610f\u7684\u8bbf\u95ee\u63a7\u5236\"DAC\u3002\u5c31\u662f\u8bf4\uff0c\u4efb\u4f55\u7a0b\u5e8f\u5bf9\u5176\u8d44\u6e90\u4eab\u6709\u5b8c\u5168\u7684\u63a7\u5236\u6743\u3002\u5047\u8bbe\u67d0\u4e2a\u7a0b\u5e8f\u6253\u7b97\u628a\u542b\u6709\u6f5c\u5728\u91cd\u8981\u4fe1\u606f\u7684\u6587\u4ef6\u6254\u5230\/tmp\u76ee\u5f55\u4e0b\uff0c\u90a3\u4e48\u5728DAC\u60c5\u51b5\u4e0b\u6ca1\u4eba\u80fd\u963b\u6b62\u4ed6\uff01<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u800cMAC\u60c5\u51b5\u4e0b\u7684\u5b89\u5168\u7b56\u7565\u5b8c\u5168\u63a7\u5236\u7740\u5bf9\u6240\u6709\u8d44\u6e90\u7684\u8bbf\u95ee\u3002\u8fd9\u662fMAC\u548cDAC\u672c\u8d28\u7684\u533a\u522b\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000SELinux\u63d0\u4f9b\u4e86\u6bd4\u4f20\u7edf\u7684UNIX\u6743\u9650\u66f4\u597d\u7684\u8bbf\u95ee\u63a7\u5236\u3002 <\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u30001.\u80cc\u666f<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000SELinux\u662f\u300cSecurity-Enhanced Linux\u300d\u7684\u7b80\u79f0\uff0c\u662f\u7f8e\u56fd\u56fd\u5bb6\u5b89\u5168\u5c40\u300cNSA\uff1dThe National Security Agency\u300d \u548cSCC\uff08Secure Computing Corporation\uff09\u5f00\u53d1\u7684 Linux\u7684\u4e00\u4e2a\u6269\u5f20\u5f3a\u5236\u8bbf\u95ee\u63a7\u5236\u5b89\u5168\u6a21\u5757\u3002\u539f\u5148\u662f\u5728Fluke\u4e0a\u5f00\u53d1\u7684\uff0c2000\u5e74\u4ee5 GNU GPL \u53d1\u5e03\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u73b0\u5728\u4ee5Linux\u4f5c\u4e3a\u56e0\u7279\u7f51\u670d\u52a1\u5668\u662f\u8d8a\u6765\u8d8a\u666e\u904d\u7684\u4e8b\u4e86\u3002\u5728\u6211\u8fd9\u51e0\u5e74\u4f5c\u8fc7\u7684\u9879\u76ee\u91cc\uff0cWEB\u7684\u5f00\u53d1\u57fa\u672c\u90fd\u662f\u57fa\u4e8eLinux\u7684\uff0c\u8fd9\u91cc\u6709\u7ed9\u5927\u516c\u53f8\u505a\u7684\uff0c\u4e5f\u7ed9\u653f\u5e9c\u90e8\u95e8\u505a\u7684\uff0c\u5f53\u7136\u66f4\u591a\u7684\u662f\u4e2d\u5c0f\u4f01\u4e1a\u505a\u7684\u3002\u8fd9\u5176\u4e2d\u7ed9\u653f\u5e9c\u505a\u7684\uff0c\u6211\u4eec\u628aSELinux\u4f5c\u4e3a\u4e00\u4e2a\u5356\u70b9\uff0c\u63a5\u53d7\u4e86\u4e0d\u5c11\u9879\u76ee\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u30002.\u6211\u4eec\u9700\u8981\u5b89\u5168\u64cd\u4f5c\u7cfb\u7edf\u7684\u7406\u7531<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u73b0\u5728\u4e0d\u8bba\u662f\u653f\u5e9c\u8fd8\u662f\u6c11\u95f4\u4f01\u4e1a\uff0c\u5927\u5bb6\u5bf9\u4fe1\u606f\u5b89\u5168\u95ee\u9898\u662f\u8d8a\u6765\u8d8a\u5173\u5fc3\u4e86\uff0c\u56e0\u4e3a\u4f01\u4e1a\u7684\u4e1a\u52a1\u5e73\u53f0\u7684\u670d\u52a1\u5668\u4e0a\u5b58\u50a8\u7740\u5927\u91cf\u7684\u5546\u52a1\u673a\u5bc6\uff0c\u4e2a\u4eba\u8d44\u6599\uff0c\u4e2a\u4eba\u8d44\u6599\u5b83\u76f4\u63a5\u5173\u7cfb\u5230\u4e2a\u4eba\u7684\u9690\u79c1\u95ee\u9898\u3002\u7279\u522b\u662f\u6211\u4eec\u653f\u5e9c\u7684\u7f51\u7ad9\uff0c\u4f5c\u4e3a\u4fe1\u606f\u516c\u5f00\u7684\u5e73\u53f0\uff0c\u5b83\u7684\u5b89\u5168\u5c31\u66f4\u663e\u5f97\u91cd\u8981\u4e86\u3002\u8fd9\u4e9b\u8fde\u5230\u4e92\u8054\u7f51\u7684\u670d\u52a1\u5668\uff0c\u4e0d\u53ef\u907f\u514d\u7684\u8981\u53d7\u5230\u6765\u81ea\u4e16\u754c\u5404\u5730\u7684\u5404\u79cd\u5a01\u80c1\u3002\u6700\u574f\u7684\u65f6\u5019\u6211\u4eec\u7684\u670d\u52a1\u5668\u88ab\u5165\u4fb5\uff0c\u4e3b\u9875\u6587\u4ef6\u88ab\u66ff\u6362\uff0c\u673a\u5bc6\u6587\u4ef6\u88ab\u76d7\u8d70\u3002\u9664\u4e86\u6765\u81ea\u5916\u90e8\u7684\u5a01\u80c1\u5916\uff0c\u5185\u90e8\u4eba\u5458\u7684\u4e0d\u6cd5\u8bbf\u95ee\uff0c\u653b\u51fb\u4e5f\u662f\u4e0d\u53ef\u5ffd\u89c6\u7684\u3002\u5bf9\u4e8e\u8fd9\u4e9b\u653b\u51fb\u6216\u8005\u8bf4\u662f\u5a01\u80c1\uff0c\u5f53\u7136\u6709\u5f88\u591a\u7684\u529e\u6cd5\uff0c\u6709\u9632\u706b\u5899\uff0c\u5165\u4fb5\u68c0\u6d4b\u7cfb\u7edf\uff0c\u6253\u8865\u4e01\u7b49\u7b49\u3002\u56e0\u4e3aLinux\u4e5f\u548c\u5176\u4ed6\u7684\u5546\u7528UNIX\u4e00\u6837\uff0c\u4e0d\u65ad\u6709\u5404\u7c7b\u7684\u5b89\u5168\u6f0f\u6d1e\u88ab\u53d1\u73b0\u3002\u6211\u4eec\u5bf9\u4ed8\u8fd9\u4e9b\u6f0f\u6d1e\u4e0d\u5f97\u4e0d\u82b1\u5f88\u591a\u7684\u4eba\u529b\u6765\u5835\u4f4f\u5b83\u3002\u5728\u8fd9\u4e9b\u624b\u6bb5\u4e4b\u4e2d\uff0c\u63d0\u9ad8OS\u7cfb\u7edf\u81ea\u8eab\u7684\u7262\u56fa\u6027\u5c31\u663e\u5f97\u975e\u5e38\u7684\u91cd\u8981\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u30002.1\u4f20\u7edf\u7684Linux OS\u7684\u4e0d\u8db3\u4e4b\u5904<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u867d\u7136Linux \u6bd4\u8d77 Windows \u6765\u8bf4\uff0c\u5b83\u7684\u53ef\u9760\u6027\uff0c\u7a33\u5b9a\u5b9a\u8981\u597d\u5f97\u591a\uff0c\u4f46\u662f\u4ed6\u4e5f\u662f\u548c\u5176\u4ed6\u7684UNIX \u4e00\u6837\uff0c\u6709\u4ee5\u4e0b\u8fd9\u4e9b\u4e0d\u8db3\u4e4b\u5904\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\uff11)\u5b58\u5728\u7279\u6743\u7528\u6237root<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u4efb\u4f55\u4eba\u53ea\u8981\u5f97\u5230root\u7684\u6743\u9650\uff0c\u5bf9\u4e8e\u6574\u4e2a\u7cfb\u7edf\u90fd\u53ef\u4ee5\u4e3a\u6240\u6b32\u4e3a\u3002\u8fd9\u4e00\u70b9Windows\u4e5f\u4e00\u6837\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\uff12)\u5bf9\u4e8e\u6587\u4ef6\u7684\u8bbf\u95ee\u6743\u7684\u5212\u5206\u4e0d\u591f\u7ec6<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u5728linux\u7cfb\u7edf\u91cc\uff0c\u5bf9\u4e8e\u6587\u4ef6\u7684\u64cd\u4f5c\uff0c\u53ea\u6709\u300c\u6240\u6709\u8005\u300d,\u300c\u6240\u6709\u7ec4\u300d,\u300c\u5176\u4ed6\u300d\u8fd9\uff13\u7c7b\u7684\u5212\u5206\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u5bf9\u4e8e\u300c\u5176\u4ed6\u300d\u8fd9\u4e00\u7c7b\u91cc\u7684\u7528\u6237\u518d\u7ec6\u7ec6\u7684\u5212\u5206\u7684\u8bdd\u5c31\u6ca1\u6709\u529e\u6cd5\u4e86\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\uff13)SUID\u7a0b\u5e8f\u7684\u6743\u9650\u5347\u7ea7<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u5982\u679c\u8bbe\u7f6e\u4e86SUID\u6743\u9650\u7684\u7a0b\u5e8f\u6709\u4e86\u6f0f\u6d1e\u7684\u8bdd\uff0c\u5f88\u5bb9\u6613\u88ab\u653b\u51fb\u8005\u6240\u5229\u7528\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\uff14)\uff24\uff21\uff23(Discretionary Access Control)\u95ee\u9898<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u6587\u4ef6\u76ee\u5f55\u7684\u6240\u6709\u8005\u53ef\u4ee5\u5bf9\u6587\u4ef6\u8fdb\u884c\u6240\u6709\u7684\u64cd\u4f5c\uff0c\u8fd9\u7ed9\u7cfb\u7edf\u6574\u4f53\u7684\u7ba1\u7406\u5e26\u6765\u4e0d\u4fbf\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u5bf9\u4e8e\u4ee5\u4e0a\u8fd9\u4e9b\u7684\u4e0d\u8db3\uff0c\u9632\u706b\u5899\uff0c\u5165\u4fb5\u68c0\u6d4b\u7cfb\u7edf\u90fd\u662f\u65e0\u80fd\u4e3a\u529b\u7684\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u5728\u8fd9\u79cd\u80cc\u666f\u4e0b\uff0c\u5bf9\u4e8e\u8bbf\u95ee\u6743\u9650\u5927\u5e45\u5f3a\u5316\u7684OS SELinux\u6765\u8bf4\uff0c\u5b83\u7684\u9b45\u529b\u7684\u65e0\u7a77\u7684\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u30002.2 SELinux\u7684\u4f18\u70b9<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000SELinux\u7cfb\u7edf\u6bd4\u8d77\u901a\u5e38\u7684Linux\u7cfb\u7edf\u6765\uff0c\u5b89\u5168\u6027\u80fd\u8981\u9ad8\u7684\u591a\uff0c\u5b83\u901a\u8fc7\u5bf9\u4e8e\u7528\u6237\uff0c\u8fdb\u7a0b\u6743\u9650\u7684\u6700\u5c0f\u5316\uff0c\u5373\u4f7f\u53d7\u5230\u653b\u51fb\uff0c\u8fdb\u7a0b\u6216\u8005\u7528\u6237\u6743\u9650\u88ab\u593a\u53bb\uff0c\u4e5f\u4e0d\u4f1a\u5bf9\u6574\u4e2a\u7cfb\u7edf\u9020\u6210\u91cd\u5927\u5f71\u54cd\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u63a5\u4e0b\u6765\u6211\u6765\u4ecb\u7ecdSELinux\u7684\u4e00\u4e9b\u7279\u70b9\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u7279\u70b91\uff1aMAC(Mandatory Access Control)\u2015\u2015\u2015\u5bf9\u8bbf\u95ee\u7684\u63a7\u5236\u5f7b\u5e95\u5316<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u5bf9\u4e8e\u6240\u6709\u7684\u6587\u4ef6\uff0c\u76ee\u5f55\uff0c\u7aef\u53e3\u8fd9\u7c7b\u7684\u8d44\u6e90\u7684\u8bbf\u95ee\uff0c\u90fd\u53ef\u4ee5\u662f\u57fa\u4e8e\u7b56\u7565\u8bbe\u5b9a\u7684\uff0c\u8fd9\u4e9b\u7b56\u7565\u662f\u7531\u7ba1\u7406\u5458\u5b9a\u5236\u7684\u3001\u4e00\u822c\u7528\u6237\u662f\u6ca1\u6709\u6743\u9650\u66f4\u6539\u7684\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u7279\u70b92\uff1a TE \uff08Type Enforcement\uff09\u2015\u2015\u2015 \u5bf9\u4e8e\u8fdb\u7a0b\u53ea\u4ed8\u4e0e\u6700\u5c0f\u7684\u6743\u9650<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000Te\u6982\u5ff5\u5728 SELinux\u91cc\u975e\u5e38\u7684\u91cd\u8981\u3002\u5b83\u7684\u7279\u70b9\u662f\u5bf9\u6240\u6709\u7684\u6587\u4ef6\u90fd\u8d4b\u4e88\u4e00\u4e2a\u53ebtype\u7684\u6587\u4ef6\u7c7b\u578b\u6807\u7b7e\uff0c\u5bf9\u4e8e\u6240\u6709\u7684\u8fdb\u7a0b\u4e5f\u8d4b\u4e88\u5404\u81ea\u7684\u4e00\u4e2a\u53eb domain\u7684 \u6807\u7b7e\u3002Domain\u6807\u7b7e\u80fd\u591f\u6267\u884c\u7684\u64cd\u4f5c\u4e5f\u662f\u7531access vector\u5728\u7b56\u7565\u91cc\u5b9a\u597d\u7684\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u6211\u4eec\u719f\u6089\u7684apache\u670d\u52a1\u5668\uff0chttpd\u8fdb\u7a0b\u53ea\u80fd\u5728httpd_t \u91cc\u8fd0\u884c\uff0c\u8fd9\u4e2ahttpd_t \u7684domain\u80fd\u6267\u884c\u7684\u64cd\u4f5c\uff0c\u6bd4\u5982\u80fd\u8bfb\u7f51\u9875\u5185\u5bb9\u6587\u4ef6\u8d4b\u4e88httpd_sys_content_t, \u5bc6\u7801\u6587\u4ef6\u8d4b\u4e88shadow_t, TCP\u768480\u7aef\u53e3\u8d4b\u4e88 http_port_t\u7b49\u7b49\u3002\u5982\u679c\u5728access vector\u91cc\u6211\u4eec\u4e0d\u5141\u8bb8 http_t\u6765\u5bf9http_port_t\u8fdb\u884c\u64cd\u4f5c\u7684\u82b1\uff0cApache\u542f\u52a8\u90fd\u542f\u52a8\u4e0d\u4e86\u3002\u53cd\u8fc7\u6765\u8bf4\uff0c\u6211\u4eec\u53ea\u5141\u8bb880\u7aef\u53e3\uff0c\u53ea\u5141\u8bb8\u8bfb\u53d6\u88ab\u6807\u4e3a httpd_sys_content_t\u7684\u6587\u4ef6\uff0chttpd_t\u5c31\u4e0d\u80fd\u7528\u522b\u7684\u7aef\u53e3\uff0c\u4e5f\u4e0d\u80fd\u66f4\u6539\u90a3\u4e9b\u88ab\u6807\u4e3ahttpd_sys_content_t\u7684\u6587\u4ef6\uff08read only)\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u7279\u70b93\uff1a \uff44\uff4f\uff4d\uff41\uff49\uff4e\u8fc1\u79fb \u2015\u2015 \u9632\u6b62\u6743\u9650\u5347\u7ea7<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u5728\u7528\u6237\u73af\u5883\u91cc\u8fd0\u884c\u70b9\u5bf9\u70b9\u4e0b\u8f7d\u8f6f\u4ef6azureus\uff0c\u4f60\u5f53\u524d\u7684domain\u662ffu_t, \u4f46\u662f\uff0c\u4f60\u8003\u8651\u5230\u5b89\u5168\u95ee\u9898\uff0c\u4f60\u6253\u7b97\u8ba9\u4ed6\u5728azureus_t\u91cc\u8fd0\u884c\uff0c\u4f60\u8981\u662f\u5728terminal\u91cc\u7528\u547d\u4ee4\u542f\u52a8azureus\u7684\u8bdd\uff0c\u5b83\u7684\u8fdb\u7a0b\u7684domain\u5c31\u4f1a\u9ed8\u8ba4\u7ee7\u627f\u4f60\u5b9e\u884c\u7684shell\u7684fu_t\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u6709\u4e86\uff44\uff4f\uff4d\uff41\uff49\uff4e\u8fc1\u79fb\u7684\u8bdd\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u8ba9azureus\u5728\u6211\u4eec\u6307\u5b9a\u7684azureus_t\u91cc\u8fd0\u884c\uff0c\u5728\u5b89\u5168\u4e0a\u9762\uff0c\u8fd9\u79cd\u505a\u6cd5\u66f4\u53ef\u53d6\uff0c\u5b83\u4e0d\u4f1a\u5f71\u54cd\u5230\u4f60\u7684fu_t\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u4e0b\u9762\u662fdomain\u8fc1\u79fb\u6307\u793a\u7684\u4f8b\u5b50\uff1a<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000domain_auto_trans(fu_t, azureus_exec_t, azureus_t)<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u610f\u601d\u5c31\u662f\uff0c\u5f53\u5728 fu_t domain\u91cc\uff0c\u5b9e\u884c\u4e86 \u88ab\u6807\u4e3a azureus_exec_t\u7684\u6587\u4ef6\u65f6\uff0cdomain \u4ecefu_t\u8fc1\u79fb\u5230 azureus_t \u3002\u4e0b\u9762\u662fApache\u542f\u52a8\u7684\u8fc1\u79fb\u56fe\u3002\u6ce8\u610f\u4e86\uff0c\u56e0\u4e3a\u4ece\u54ea\u4e00\u4e2adomain\u80fd\u8fc1\u79fb\u5230httpd_t\u662f\u5728\u7b56\u7565\u91cc\u5b9a\u597d\u4e86\uff0c\u6240\u4ee5\u8981\u662f\u6211\u4eec\u624b\u52a8 (\/etc\/init.d\/httpd start)\u542f\u52a8apache\u7684\u8bdd\uff0c\u53ef\u80fd\u4ecd\u7136\u7559\u5728sysadm_t\u91cc\uff0c\u8fd9\u6837\u5c31\u4e0d\u80fd\u5b8c\u6210\u6b63\u786e\u7684\u8fc1\u79fb\u3002\u8981\u7528run_init\u547d\u4ee4\u6765\u624b\u52a8\u542f\u52a8\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u7279\u70b94\uff1a RBAC\uff08role base access control) \u2015\u2015\u2015\u2015\u2015 \u5bf9\u4e8e\u7528\u6237\u53ea\u4ed8\u4e0e\u6700\u5c0f\u7684\u6743\u9650<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u5bf9\u4e8e\u7528\u6237\u6765\u8bf4\uff0c\u88ab\u5212\u5206\u6210\u4e00\u4e9bROLE\uff0c\u5373\u4f7f\u662fROOT\u7528\u6237\uff0c\u4f60\u8981\u662f\u4e0d\u5728sysadm_r\u91cc\uff0c\u4e5f\u8fd8\u662f\u4e0d\u80fd\u5b9e\u884csysadm_t\u7ba1\u7406\u64cd\u4f5c\u7684\u3002\u56e0\u4e3a\uff0c\u90a3\u4e9bROLE\u53ef\u4ee5\u6267\u884c\u90a3\u4e9bdomain\u4e5f\u662f\u5728\u7b56\u7565\u91cc\u8bbe\u5b9a\u7684\u3002ROLE\u4e5f\u662f\u53ef\u4ee5\u8fc1\u79fb\u7684\uff0c\u4f46\u662f\u4e5f\u53ea\u80fd\u5b89\u7b56\u7565\u89c4\u5b9a\u7684\u8fc1\u79fb\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u30003. \u63a7\u5236\u5207\u6362<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u4ecefedora core 2\u5f00\u59cb\uff0c 2.6\u5185\u6838\u7684\u7248\u672c\u90fd\u652f\u6301selinux.\u6211\u4eec\u770b\u770b Fedora core 5 \u91cc\u7684\/etc\/sysconfig\/selinux\u6807\u51c6\u8bbe\u5b9a\u5427\u3002<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000# This file controls the state of SELinux on the system.<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000# SELINUX= can take one of these three values:<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000# enforcing - SELinux security policy is enforced.<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000# permissive - SELinux prints warnings instead of enforcing.<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000# disabled - SELinux is fully disabled.<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000SELINUX=enforcing<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000#SELINUX=disabled<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000# SELINUXTYPE= type of policy in use. Possible values are:<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000# targeted - Only targeted network daemons are protected.<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000# strict - Full SELinux protection.<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000SELINUXTYPE=targeted<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000SELINUX\u6709\u300cdisabled\u300d\u300cpermissive\u300d\uff0c\u300cenforcing\u300d3\u79cd\u9009\u62e9\u3002<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000Disabled\u5c31\u4e0d\u7528\u8bf4\u4e86\uff0cpermissive\u5c31\u662fSelinux\u6709\u6548\uff0c\u4f46\u662f\u5373\u4f7f\u4f60\u8fdd\u53cd\u4e86\u7b56\u7565\u7684\u8bdd\u5b83\u8ba9\u4f60\u7ee7\u7eed\u64cd\u4f5c\uff0c\u4f46\u662f\u628a\u4f60\u7684\u8fdd\u53cd\u7684\u5185\u5bb9\u8bb0\u5f55\u4e0b\u6765\u3002\u5728\u6211\u4eec\u5f00\u53d1\u7b56\u7565\u7684\u65f6\u5019\u975e\u5e38\u7684\u6709\u7528\u3002<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u76f8\u5f53\u4e8eDebug\u6a21\u5f0f\u3002<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000Enforcing\u5c31\u662f\u4f60\u8fdd\u53cd\u4e86\u7b56\u7565\uff0c\u4f60\u5c31\u65e0\u6cd5\u7ee7\u7eed\u64cd\u4f5c\u4e0b\u53bb\u3002<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000SELINUXTYPE\u5462\uff0c\u73b0\u5728\u4e3b\u8981\u67092\u5927\u7c7b\uff0c\u4e00\u7c7b\u5c31\u662f\u7ea2\u5e3d\u5b50\u5f00\u53d1\u7684targeted\uff0c\u5b83\u53ea\u662f\u5bf9\u4e8e\uff0c\u4e3b\u8981\u7684\u7f51\u7edc\u670d\u52a1\u8fdb\u884c\u4fdd\u62a4\uff0c\u6bd4\u5982 apache ,sendmail, bind,postgresql\u7b49\uff0c\u4e0d\u5c5e\u4e8e\u90a3\u4e9bdomain\u7684\u5c31\u90fd\u8ba9\u4ed6\u4eec\u5728unconfined_t\u91cc\uff0c\u53ef\u5bfc\u5165\u6027\u9ad8\uff0c\u53ef\u7528\u6027\u597d\u4f46\u662f\u4e0d\u80fd\u5bf9\u6574\u4f53\u8fdb\u884c\u4fdd\u62a4\u3002<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u53e6\u4e00\u7c7b\u662fStrict\uff0c\u662fNAS\u5f00\u53d1\u7684\uff0c\u80fd\u5bf9\u6574\u4e2a\u7cfb\u7edf\u8fdb\u884c\u4fdd\u62a4\uff0c\u4f46\u662f\u8bbe\u5b9a\u590d\u6742\uff0c\u6211\u8ba4\u4e3a\u867d\u7136\u5b83\u590d\u6742\uff0c\u4f46\u662f\u4e00\u4e9b\u57fa\u672c\u7684\u4f1a\u4e86\uff0c\u8fd8\u662f\u53ef\u4ee5\u73a9\u5f97\u52a8\u7684\u3002<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000\u6211\u4eec\u9664\u4e86\u5728\/etc\/sysconfig\/selinux\u8bbe\u5b83\u6709\u6548\u65e0\u6548\u5916\uff0c\u5728\u542f\u52a8\u7684\u65f6\u5019\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u4f20\u9012\u53c2\u6570selinux\u7ed9\u5185\u6838\u6765\u63a7\u5236\u5b83\u3002(Fedora 5\u9ed8\u8ba4\u662f\u6709\u6548\uff09<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: large;\">\u3000\u3000kernel \/boot\/vmlinuz-2.6.15-1.2054_FC5 ro root=LABEL=\/ rhgb quiet selinux=0<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: large;\">\u00a0<\/span><\/p>\n<div class=\"artical-content-bak main-content editor-side-new\">\n<div class=\"con editor-preview-side\">\n<p>\u67e5\u770bSELinux\u72b6\u6001\uff1a<br \/>\n1\u3001\/usr\/sbin\/sestatus -v \u00a0 \u00a0 \u00a0##\u5982\u679cSELinux status\u53c2\u6570\u4e3aenabled\u5373\u4e3a\u5f00\u542f\u72b6\u6001<br \/>\nSELinux status: \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 enabled<\/p>\n<p>2\u3001getenforce \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ##\u4e5f\u53ef\u4ee5\u7528\u8fd9\u4e2a\u547d\u4ee4\u68c0\u67e5<\/p>\n<p>\u5173\u95edSELinux\uff1a<\/p>\n<p>1\u3001\u4e34\u65f6\u5173\u95ed\uff08\u4e0d\u7528\u91cd\u542f\u673a\u5668\uff09\uff1a<\/p>\n<p>setenforce 0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0##\u8bbe\u7f6eSELinux \u6210\u4e3apermissive\u6a21\u5f0f<\/p>\n<p>##setenforce 1 \u8bbe\u7f6eSELinux \u6210\u4e3aenforcing\u6a21\u5f0f<\/p>\n<p>2\u3001\u4fee\u6539\u914d\u7f6e\u6587\u4ef6\u9700\u8981\u91cd\u542f\u673a\u5668\uff1a<\/p>\n<p>\u4fee\u6539\/etc\/selinux\/config \u6587\u4ef6<\/p>\n<p>\u5c06SELINUX=enforcing\u6539\u4e3aSELINUX=disabled<\/p>\n<p>\u91cd\u542f\u673a\u5668\u5373\u53ef<\/p>\n<\/div>\n<\/div>\n<p><span style=\"font-size: large;\"><\/p>\n<p><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>SELinux(Security-Enhanced Linux) \u662f \u7f8e\u56fd\u56fd\u5bb6\u5b89 &hellip; <a href=\"https:\/\/www.xiaobo.li\/notes\/archives\/92\">\u7ee7\u7eed\u9605\u8bfb <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[273],"tags":[13],"class_list":["post-92","post","type-post","status-publish","format-standard","hentry","category-article","tag-linux"],"_links":{"self":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts\/92","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/comments?post=92"}],"version-history":[{"count":0,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts\/92\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/media?parent=92"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/categories?post=92"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/tags?post=92"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}