{"id":127222,"date":"2022-05-20T03:02:27","date_gmt":"2022-05-19T19:02:27","guid":{"rendered":"http:\/\/www.idc.net\/help\/127222\/"},"modified":"2022-05-20T03:02:27","modified_gmt":"2022-05-19T19:02:27","slug":"linux%e5%a6%82%e4%bd%95%e6%8e%a5%e6%94%b6%e5%92%8c%e5%a4%84%e7%90%86514%e5%8f%b7%e7%ab%af%e5%8f%a3%e7%9a%84syslog%e6%97%a5%e5%bf%97%ef%bc%9f-linux%e6%8e%a5%e6%94%b6514-syslog","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/127222\/","title":{"rendered":"Linux\u5982\u4f55\u63a5\u6536\u548c\u5904\u7406514\u53f7\u7aef\u53e3\u7684syslog\u65e5\u5fd7\uff1f (linux\u63a5\u6536514 syslog)"},"content":{"rendered":"<p>\u968f\u7740\u4e92\u8054\u7f51\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\uff0c\u8ba1\u7b97\u673a\u7cfb\u7edf\u4e5f\u8d8a\u6765\u8d8a\u91cd\u8981\u3002\u540c\u65f6\uff0c\u8fd9\u4e9b\u7cfb\u7edf\u7684\u5b89\u5168\u95ee\u9898\u4e5f\u66f4\u53d7\u5230\u5173\u6ce8\u3002\u4e3a\u4e86\u8ddf\u8fdb\u8fd9\u4e2a\u8d8b\u52bf\uff0c\u65e5\u5fd7\u8bb0\u5f55\u5c31\u6210\u4e3a\u4e86IT\u7ba1\u7406\u5458\u7ba1\u7406\u6240\u6709\u7cfb\u7edf\u4e2d\u6700\u91cd\u8981\u7684\u5de5\u5177\u4e4b\u4e00\u3002<\/p>\n<p>Linux\u7cfb\u7edf\u662f\u4e00\u4e2a\u975e\u5e38\u597d\u7684\u9009\u62e9\uff0c\u5b83\u6709\u4e00\u4e2a\u975e\u5e38\u5f3a\u5927\u7684\u65e5\u5fd7\u8bb0\u5f55\u7cfb\u7edf\uff0c\u53ef\u4ee5\u901a\u8fc7syslog\u5b88\u62a4\u8fdb\u7a0b\u5206\u53d1\u65e5\u5fd7\u3002\u5176\u4e2d\u5f88\u91cd\u8981\u7684\u4e00\u4e2a\u6b65\u9aa4\u662f\u5982\u4f55\u63a5\u6536\u548c\u5904\u7406514\u53f7\u7aef\u53e3\u7684syslog\u65e5\u5fd7\u3002\u672c\u6587\u5c06\u4f1a\u63a2\u8ba8Linux\u5982\u4f55\u5b9e\u73b0\u8fd9\u4e00\u70b9\u7684\u3002<\/p>\n<p>\u4e00\u3001\u4ec0\u4e48\u662fsyslog\uff1f<\/p>\n<p>Syslog\u662fUnix\u548c\u7c7bUnix\u7cfb\u7edf\u7684\u6807\u51c6\u65e5\u5fd7\u8bb0\u5f55\u5de5\u5177,\u7528\u4e8e\u65e5\u5fd7\u8bb0\u5f55\u548c\u7ba1\u7406\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u6807\u51c6\u5316\u7684\u65b9\u6cd5\u6765\u5c06\u64cd\u4f5c\u7cfb\u7edf\u548c\u5e94\u7528\u7a0b\u5e8f\u751f\u6210\u7684\u65e5\u5fd7\u6570\u636e\u4f20\u8f93\u5230\u4e00\u4e2a\u6216\u591a\u4e2a\u4f4d\u7f6e\u8fdb\u884c\u96c6\u4e2d\u5b58\u50a8\u548c\u5206\u6790\u3002\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0csyslog\u662f\u901a\u8fc7UDP\u534f\u8bae\u53d1\u9001\u65e5\u5fd7\u5230\u4e00\u4e2a\u65e5\u5fd7\u670d\u52a1\u5668\u3002<\/p>\n<p>\u4e8c\u3001\u4ec0\u4e48\u662f514\u53f7\u7aef\u53e3\uff1f<\/p>\n<p>514\u53f7\u7aef\u53e3\u662fsyslog\u4f7f\u7528\u7684\u9ed8\u8ba4\u7aef\u53e3\u53f7\u3002\u5b83\u662f\u4e00\u4e2aUDP\u7aef\u53e3\uff0c\u53ef\u7528\u4e8e\u63a5\u6536\u4ece\u5176\u4ed6\u8ba1\u7b97\u673a\u4e0a\u53d1\u9001\u7684syslog\u65e5\u5fd7\u6d88\u606f\u3002\u5bf9\u4e8esyslog\u670d\u52a1\u5668\u6765\u8bf4\uff0c\u5f00\u653e514\u53f7\u7aef\u53e3\u662f\u4e00\u4e2a\u5f88\u91cd\u8981\u7684\u6b65\u9aa4\u3002\u56e0\u4e3asyslog\u5728\u63a5\u6536\u65e5\u5fd7\u4e4b\u524d\u9700\u8981\u4e00\u4e2a\u5f00\u653e\u7684\u7aef\u53e3\u3002\u5982\u679c\u7aef\u53e3\u6ca1\u6709\u5f00\u653e\uff0csyslog\u5c06\u65e0\u6cd5\u63a5\u6536\u7f51\u7edc\u4e0a\u53d1\u9001\u7684\u65e5\u5fd7\u6d88\u606f\u3002<\/p>\n<p>\u4e09\u3001\u5982\u4f55\u5728Linux\u7cfb\u7edf\u4e2d\u5f00\u653e514\u53f7\u7aef\u53e3\uff1f<\/p>\n<p>\u8981\u5728Linux\u7cfb\u7edf\u4e2d\u5f00\u653e514\u53f7\u7aef\u53e3\uff0c\u9700\u8981\u4f7f\u7528\u9632\u706b\u5899\u89c4\u5219\u6765\u5141\u8bb8UDP\u6570\u636e\u5305\u901a\u8fc7\u8be5\u7aef\u53e3\u3002\u53ef\u4ee5\u4f7f\u7528iptables\u547d\u4ee4\u6765\u5b9e\u73b0\u8fd9\u4e2a\u529f\u80fd\u3002\u4ee5\u4e0b\u547d\u4ee4\u5c06\u901a\u8fc7514\u53f7\u7aef\u53e3\u63a5\u53d7\u6240\u6709UDP\u6d88\u606f\u3002<\/p>\n<p>\u201c`bash<\/p>\n<p>iptables -A INPUT -p udp \u2013dport 514 -j ACCEPT<\/p>\n<p>\u201c`<\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u67e5\u770biptables\u89c4\u5219\u662f\u5426\u751f\u6548\u3002<\/p>\n<p>\u201c`bash<\/p>\n<p>iptables -L -n | grep 514<\/p>\n<p>\u201c`<\/p>\n<p>\u4e0a\u9762\u7684\u547d\u4ee4\u5c06\u663e\u793a\u6709\u5173\u7aef\u53e3514\u7684\u4fe1\u606f\u3002\u5982\u679c\u663e\u793aACCEPT\uff0c\u5219\u89c4\u5219\u5df2\u6210\u529f\u6dfb\u52a0\u3002\u5426\u5219\uff0c\u53ef\u80fd\u9700\u8981\u4fee\u6539\u89c4\u5219\u6216\u67e5\u770b\u8f83\u65e9\u7684\u65e5\u5fd7\u6765\u786e\u5b9a\u9519\u8bef\u53d1\u751f\u7684\u539f\u56e0\u3002<\/p>\n<p>\u56db\u3001\u5982\u4f55\u914d\u7f6ersyslog\u63a5\u6536\u5e76\u5904\u7406\u65e5\u5fd7\uff1f<\/p>\n<p>rsyslog\u662fLinux\u7cfb\u7edf\u4e2d\u6700\u5e38\u7528\u7684\u65e5\u5fd7\u670d\u52a1\u5668\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u914d\u7f6e\u6587\u4ef6\uff0c\u5b83\u5c06\u5141\u8bb8rsyslog\u5b88\u62a4\u8fdb\u7a0b\u76d1\u542c514\u53f7\u7aef\u53e3\u5e76\u5c06\u65e5\u5fd7\u6d88\u606f\u5b58\u50a8\u5230\/var\/log\/messages\u6587\u4ef6\u4e2d\u3002<\/p>\n<p>\u201c`bash<\/p>\n<p># rsyslog configuration file<\/p>\n<p># Configuration file for rsyslog. See rsyslog.conf(5) for more detls.<\/p>\n<p># Global options<\/p>\n<p>global(<\/p>\n<p> legacy_kernel_logs = off # Disable kernel logs (that may already be duplicated elsewhere)<\/p>\n<p>)<\/p>\n<p># Enable UDP reception on port 514<\/p>\n<p>module(load=\u201dimudp\u201d)<\/p>\n<p>input(type=\u201dimudp\u201d port=\u201d514\u2033)<\/p>\n<p># Permit messages that match certn rules*<\/p>\n<p>if $programname == \u2018audispd\u2019 then stop # Ignore audit messages<\/p>\n<p>:fromhost-ip, !isequal, \u201c127.0.0.1\u201d @@127.0.0.1:1514 ;All messages except some IPs send to syslog server<\/p>\n<p># Filter messages that match certn rules<\/p>\n<p>if $syslogtag contns \u2018sshd\u2019 then \/var\/log\/ssh.log # Log SSH Login attempts<\/p>\n<p># Default syslog file<\/p>\n<p>*.* \/var\/log\/messages<\/p>\n<p>\u201c`<\/p>\n<p>\u5728\u4ee5\u4e0a\u914d\u7f6e\u6587\u4ef6\u4e2d\uff0c\u9996\u5148\u901a\u8fc7global\u9009\u9879\u5173\u95ed\u4e86\u5728syslog\u4e2d\u91cd\u590d\u8bb0\u5f55\u5185\u6838\u65e5\u5fd7\u3002\u7136\u540e\u901a\u8fc7module\u9009\u9879\u52a0\u8f7d\u4e86imudp\u63d2\u4ef6\u6765\u5f00\u653e514\u53f7\u7aef\u53e3\u5e76\u5141\u8bb8UDP\u6d88\u606f\uff0c\u63a5\u4e0b\u6765\u4f7f\u7528input\u9009\u9879\u6307\u5b9a\u4e86\u76d1\u542c\u7684\u7aef\u53e3\u53f7514\u3002<\/p>\n<p>\u4ee5\u4e0b\u662frsyslog.conf\u6587\u4ef6\u4e2d\u7684\u5176\u4ed6\u53c2\u6570\u7684\u89e3\u91ca\uff1a<\/p>\n<p>\u2013 $programname\uff1a\u8be5\u6307\u4ee4\u4f1a\u63d0\u53d6ngx_lua\u7a0b\u5e8f\u5b9e\u4f8b\u7684\u540d\u79f0\uff0c\u5e76\u4f7f\u7528\u5b83\u6765\u7ba1\u7406\u65e5\u5fd7\u5904\u7406\u7684\u6355\u83b7\u3002<\/p>\n<p>\u2013 stop\uff1a\u505c\u6b62\u5bf9\u8be5\u6761\u65e5\u5fd7\u6d88\u606f\u7684\u5904\u7406\u3002\u5b83\u5bf9\u4e8e\u8fc7\u6ee4\u5230\u6211\u4eec\u4e0d\u9700\u8981\u7684\u65e5\u5fd7\u975e\u5e38\u6709\u5e2e\u52a9\u3002<\/p>\n<p>\u2013 $fromhost-ip\uff1a\u8f93\u5165\u663e\u793a\u5ba2\u6237\u7aef\u7684IP\u5730\u5740\u3002<\/p>\n<p>\u2013 !isequal\uff1a\u5426\u5b9a\u64cd\u4f5c\u7b26\u53f7\u7528\u4e8e\u6392\u9664\u7279\u5b9aIP\u3002<\/p>\n<p>\u2013 @@127.0.0.1\uff1a\u8fd9\u544a\u8bc9rsyslog\u5b88\u62a4\u8fdb\u7a0b\u5c06\u6d88\u606f\u53d1\u9001\u5230\u672c\u5730\u4e3b\u673a\uff0c\u7aef\u53e3\u53f7\u662f1514\u3002<\/p>\n<p>\u2013 *.*\uff1a\u901a\u914d\u7b26\u7528\u4e8e\u5339\u914d\u6240\u6709\u7684\u65e5\u5fd7\u7ea7\u522b\u548c\u8bbe\u5907\u7aef\u53e3\uff0c\u5b83\u5c06\u65e5\u5fd7\u6d88\u606f\u53d1\u9001\u5230\u4e00\u4e2a\u9ed8\u8ba4\u6587\u4ef6\/var\/log\/messages\u4e2d\u3002<\/p>\n<p>\u4e94\u3001<\/p>\n<p>\u901a\u8fc7\u914d\u7f6ersyslog.conf\u6587\u4ef6\uff0cLinux\u7cfb\u7edf\u53ef\u4ee5\u8f7b\u677e\u5730\u63a5\u6536\u548c\u5904\u7406514\u53f7\u7aef\u53e3\u7684syslog\u65e5\u5fd7\u3002rsyslog\u5177\u6709\u5f3a\u5927\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u5e2e\u52a9\u7cfb\u7edf\u7ba1\u7406\u5458\u5feb\u901f\u5b9a\u4f4d\u5e76\u4fee\u590d\u4efb\u4f55\u53ef\u80fd\u7684\u95ee\u9898\uff0c\u6709\u52a9\u4e8e\u4fdd\u62a4\u8ba1\u7b97\u673a\u7cfb\u7edf\u7684\u5b89\u5168\u6027\u3002\u56e0\u6b64\uff0c\u5728\u7ba1\u7406\u65e5\u5fd7\u6587\u4ef6\u65f6\uff0crsyslog\u662fLinux\u7cfb\u7edf\u4e2d\u5fc5\u4e0d\u53ef\u5c11\u7684\u4e00\u90e8\u5206\u3002<\/p>\n<p><strong>\u76f8\u5173\u95ee\u9898\u62d3\u5c55\u9605\u8bfb\uff1a<\/strong><\/p>\n<ul>\n<li>linux\u4e0b\u7684\u65e5\u5fd7\u540c\u6b65\u670d\u52a1\u600e\u4e48\u505a\uff1f\u9ad8\u5206\u6c42\u52a9<\/li>\n<\/ul>\n<h3>linux\u4e0b\u7684\u65e5\u5fd7\u540c\u6b65\u670d\u52a1\u600e\u4e48\u505a\uff1f\u9ad8\u5206\u6c42\u52a9<\/h3>\n<p>\u5199\u4e2a\u811a\u672c\uff0c\u5f04\u6210\u5b9a\u65f6\u4efb\u52a1\uff0c\u88c5\u5524\u535c\u98a4\u4e2arsync \uff0c\u8fc7\u7a0b\u53bbgoogle\u4e00\u4e0b\u3002\u4f60\u63cf\u8ff0\u592a\u7b80\u5355\u4e86\uff0c\u57fa\u672c\u6ca1\u6709\u548c\u8d25\u6709\u4ef7\u503c\u4fe1\u606f\u3002\u5f0a\u6a61<\/p>\n<p>\u6211\u4e0d\u77e5\u9053\u4f60\u7684\u65e5\u5fd7\u540c\u6b65\u662f\u4ec0\u4e48\u610f\u601d\uff0c\u6211\u7684\u7406\u89e3\u662f\u628a\u6240\u6709\u670d\u52a1\u5668\u7684\u65e5\u5fd7\u7edf\u4e00\u53d1\u9001\u5230\u4e00\u53f0\u6307\u5b9a\u7684\u65e5\u5fd7\u670d\u52a1\u5668\u3002\u3002\u5982\u679c\u7406\u89e3\u4e0d\u5bf9\uff0c\u9ebb\u6a31\u865a\u70e6\u8865\u5145\u3002<\/p>\n<p>\u6211\u628a\u6211\u7684\u6458\u6284\u7684\u6587\u6863\u53d1\u4e0a\u6765\u7ed9\u4f60\u770b\u770b\uff0c\u8fd9\u4e2a\u4e0d\u96be\uff0c\u6211\u5c31\u662f\u6309\u8fd9\u4e2a\u6587\u6863\u914d\u7f6e\u7684\u3002\u3002 <\/p>\n<p>\u4e00\u3001 \u914d\u7f6esyslog\u5b88\u62a4\u8fdb\u7a0b <\/p>\n<p> syslog\u662fLinux\u7cfb\u7edf\u9ed8\u8ba4\u7684\u65e5\u5fd7\u5b88\u62a4\u8fdb\u7a0b\u3002\u9ed8\u8ba4\u7684syslog\u914d\u7f6e\u6587\u4ef6\u662f\/etc\/syslog.conf\u6587\u4ef6\u3002syslog\u5b88\u62a4\u8fdb\u7a0b\u662f\u53ef\u914d\u7f6e \u7684\uff0c\u5b83\u5141\u8bb8\u4eba\u4eec\u4e3a\u6bcf\u4e00\u79cd\u7c7b\u578b\u7684\u7cfb\u7edf\u4fe1\u606f\u7cbe\u786e\u5730\u6307\u5b9a\u4e00\u4e2a\u5b58\u653e\u5730\u70b9\u3002\u73b0\u5728\uff0c\u6211\u4eec\u5148\u770b\u770bsyslog.conf\u6587\u4ef6\u7684\u914d\u7f6e\u884c\u683c\u5f0f\uff08\u8fd9\u4e2a\u6587\u4ef6\u91cc\u7684\u6bcf\u4e00\u4e2a\u914d\u7f6e\u884c\u90fd\u662f \u540c\u6837\u7684\u683c\u5f0f\uff09\uff0c\u7136\u540e\u518d\u770b\u4e00\u4e2a\u5b8c\u6574\u7684syslog\u914d\u7f6e\u6587\u4ef6\u3002syslog\u914d\u7f6e\u884c\u7684\u683c\u5f0f\u5982\u4e0b\u6240\u793a\uff1a <\/p>\n<p> mail.*\/var\/log\/mail <\/p>\n<p> \u8fd9\u4e00\u884c\u7531\u4e24\u4e2a\u90e8\u5206\u7ec4\u6210\u3002\u4e4b\u4e00\u4e2a\u90e8\u5206\u662f\u4e00\u4e2a\u6216\u591a\u4e2a\u201c\u9009\u62e9\u6761\u4ef6\u201d\uff1b\u4e0a\u4f8b\u4e2d\u7684\u9009\u62e9\u6761\u4ef6\u662f\u201cmail\u201d\u3002\u9009\u62e9\u6761\u4ef6\u540e\u9762\u8ddf\u4e00\u4e9b\u7a7a\u683c\u5b57\u7b26\uff0c\u7136\u540e\u662f\u4e00\u4e2a\u201c\u64cd\u4f5c\u52a8\u4f5c\u201d\uff1b\u4e0a\u4f8b\u4e2d\u7684\u64cd\u4f5c\u52a8\u4f5c\u662f\uff1a\/var\/log\/mail <\/p>\n<p> 1\u9009\u62e9\u6761\u4ef6 <\/p>\n<p> \u9009\u62e9\u6761\u4ef6\u672c\u8eab\u5206\u4e3a\u4e24\u4e2a\u5b57\u6bb5\uff0c\u4e4b\u95f4\u7528\u4e00\u4e2a\u5c0f\u6570\u70b9\uff08.\uff09\u5206\u9694\u3002\u524d\u4e00\u5b57\u6bb5\u662f\u9017\u96c0\u4e00\u9879\u670d\u52a1\uff0c\u540e\u4e00\u5b57\u6bb5\u662f\u4e00\u4e2a\u4f18\u5148\u7ea7\u3002\u9009\u62e9\u6761\u4ef6\u5176\u5b9e\u662f\u5bf9\u6d88\u606f\u7c7b\u578b\u7684\u4e00\u79cd\u5206\u7c7b\uff0c\u8fd9\u79cd\u5206\u7c7b\u4fbf\u4e8e 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