{"id":14285,"date":"2025-04-18T21:02:51","date_gmt":"2025-04-18T13:02:51","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/14285.html"},"modified":"2025-04-18T21:02:51","modified_gmt":"2025-04-18T13:02:51","slug":"%e6%9c%8d%e5%8a%a1%e5%99%a8%e6%98%af%e5%90%a6%e8%a2%ab%e5%85%a5%e4%be%b5%e7%9a%84%e6%8e%92%e6%9f%a5%e6%96%b9%e6%a1%88%ef%bc%8c%e4%bb%8e%e9%9b%b6%e5%9f%ba%e7%a1%80%e5%88%b0%e7%b2%be%e9%80%9a%ef%bc%8c","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/14285.html","title":{"rendered":"\u670d\u52a1\u5668\u662f\u5426\u88ab\u5165\u4fb5\u7684\u6392\u67e5\u65b9\u6848\uff0c\u4ece\u96f6\u57fa\u7840\u5230\u7cbe\u901a\uff0c\u6536\u85cf\u8fd9\u7bc7\u5c31\u591f\u4e86\uff01"},"content":{"rendered":"<\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"404\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418130248-68024d782fff1.jpg\" width=\"720\" \/><\/p>\n<p> \u5728\u5f00\u6e90\u6280\u672f\u65e5\u76ca\u666e\u53ca\u7684\u4eca\u5929&#xff0c;\u5bf9\u4e8e \u7f51\u7edc\u5b89\u5168 \u4ece\u4e1a\u8005\u800c\u8a00&#xff0c;\u80fd\u591f\u8fc5\u901f\u4e14\u51c6\u786e\u5730\u5224\u65ad\u670d\u52a1\u5668\u662f\u5426\u906d\u53d7\u5165\u4fb5\u81f3\u5173\u91cd\u8981\u3002\u672c\u6587\u5c06\u7ed3\u5408\u5b9e\u6218\u7ecf\u9a8c&#xff0c;\u603b\u7ed3\u51e0\u79cd\u5e38\u89c1\u7684\u670d\u52a1\u5668\u5165\u4fb5\u573a\u666f&#xff0c;\u5e0c\u671b\u80fd\u4e3a\u5927\u5bb6\u63d0\u4f9b\u53c2\u8003\u3002<\/p>\n<p>01<\/p>\n<p>\u65e5\u5fd7\u4fe1\u606f\u6838\u67e5&#xff1a;\u86db\u4e1d\u9a6c\u8ff9\u7684\u53d1\u73b0\u5730<\/p>\n<p>\u5165\u4fb5\u8005\u4e3a\u4e86\u63a9\u76d6\u884c\u8e2a&#xff0c;\u53ef\u80fd\u4f1a\u5220\u9664\u670d\u52a1\u5668\u4e0a\u7684\u65e5\u5fd7\u4fe1\u606f\u3002\u56e0\u6b64&#xff0c;\u68c0\u67e5\u65e5\u5fd7\u6587\u4ef6\u7684\u5b8c\u6574\u6027\u662f\u9996\u8981\u4efb\u52a1\u3002\u4f60\u9700\u8981\u786e\u8ba4\u65e5\u5fd7\u6587\u4ef6\u662f\u5426\u4ecd\u7136\u5b58\u5728&#xff0c;\u6216\u8005\u662f\u5426\u88ab\u6076\u610f\u6e05\u7a7a\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u547d\u4ee4\u793a\u4f8b&#xff1a;<\/p>\n<p>[root&#064;hlmcen69n3 ~]# ll -h \/var\/log\/*<br \/>\n-rw&#8212;&#8212;-. 1 root root 2.6K Jul 7 18:31 \/var\/log\/anaconda.ifcfg.log<br \/>\n-rw&#8212;&#8212;-. 1 root root 23K Jul 7 18:31 \/var\/log\/anaconda.log<br \/>\n-rw&#8212;&#8212;-. 1 root root 26K Jul 7 18:31 \/var\/log\/anaconda.program.log<br \/>\n-rw&#8212;&#8212;-. 1 root root 63K Jul 7 18:31 \/var\/log\/anaconda.storage.log<\/p>\n<p>[root&#064;hlmcen69n3 ~]# du -sh \/var\/log\/*<br \/>\n8.0K \/var\/log\/anaconda<br \/>\n4.0K \/var\/log\/anaconda.ifcfg.log<br \/>\n24K \/var\/log\/anaconda.log<br \/>\n28K \/var\/log\/anaconda.program.log<br \/>\n64K \/var\/log\/anaconda.storage.log<\/p>\n<p>\u901a\u8fc7 ll -h \u547d\u4ee4\u53ef\u4ee5\u67e5\u770b\u65e5\u5fd7\u6587\u4ef6\u7684\u8be6\u7ec6\u4fe1\u606f&#xff0c;\u5305\u62ec\u5927\u5c0f\u548c\u4fee\u6539\u65f6\u95f4\u3002du -sh \u547d\u4ee4\u5219\u53ef\u4ee5\u67e5\u770b\u76ee\u5f55\u7684\u603b\u4f53\u5927\u5c0f\u3002\u5982\u679c\u53d1\u73b0\u65e5\u5fd7\u6587\u4ef6\u7684\u5927\u5c0f\u5f02\u5e38\u6216\u8005\u7f3a\u5931&#xff0c;\u5c31\u9700\u8981\u63d0\u9ad8\u8b66\u60d5\u3002<\/p>\n<p>02<\/p>\n<p>\u7528\u6237\u8d26\u6237\u5f02\u5e38&#xff1a;\u8b66\u60d5\u65b0\u589e\u7684\u201c\u964c\u751f\u4eba\u201d<\/p>\n<p>\u5165\u4fb5\u8005\u53ef\u80fd\u4f1a\u901a\u8fc7\u521b\u5efa\u65b0\u7684\u7528\u6237\u8d26\u6237\u6765\u957f\u671f\u6f5c\u4f0f\u3002\u56e0\u6b64&#xff0c;\u52a1\u5fc5\u4ed4\u7ec6\u68c0\u67e5 \/etc\/passwd \u548c \/etc\/shadow \u6587\u4ef6&#xff0c;\u8fd9\u4e24\u4e2a\u6587\u4ef6\u5206\u522b\u5b58\u50a8\u4e86\u7528\u6237\u7684\u57fa\u672c\u4fe1\u606f\u548c\u52a0\u5bc6\u540e\u7684\u5bc6\u7801\u3002<\/p>\n<p>[root&#064;hlmcen69n3 ~]# ll \/etc\/pass*<br \/>\n-rw-r&#8211;r&#8211;. 1 root root 1373 Sep 15 11:36 \/etc\/passwd<br \/>\n-rw-r&#8211;r&#8211;. 1 root root 1373 Sep 15 11:36 \/etc\/passwd-<\/p>\n<p>[root&#064;hlmcen69n3 ~]# ll \/etc\/sha*<br \/>\n&#8212;&#8212;&#8212;-. 1 root root 816 Sep 15 11:36 \/etc\/shadow<br \/>\n&#8212;&#8212;&#8212;-. 1 root root 718 Sep 15 11:36 \/etc\/shadow-<\/p>\n<p>\u91cd\u70b9\u5173\u6ce8\u662f\u5426\u6709\u6765\u5386\u4e0d\u660e\u7684\u7528\u6237\u8d26\u6237&#xff0c;\u7279\u522b\u662f\u90a3\u4e9b\u5177\u6709\u9ad8\u6743\u9650\u7684\u7528\u6237\u3002<\/p>\n<p>03<\/p>\n<p>\u5bc6\u7801\u6587\u4ef6\u7be1\u6539&#xff1a;\u9632\u8303\u6743\u9650\u63d0\u5347\u7684\u9677\u9631<\/p>\n<p>\u9664\u4e86\u65b0\u589e\u7528\u6237&#xff0c;\u5165\u4fb5\u8005\u8fd8\u53ef\u80fd\u76f4\u63a5\u4fee\u6539\u73b0\u6709\u7684\u7528\u6237\u5bc6\u7801&#xff0c;\u7279\u522b\u662f root \u7528\u6237\u7684\u5bc6\u7801&#xff0c;\u4ee5\u8fbe\u5230\u63a7\u5236\u670d\u52a1\u5668\u7684\u76ee\u7684\u3002\u540c\u6837\u9700\u8981\u67e5\u770b \/etc\/passwd \u548c \/etc\/shadow \u6587\u4ef6&#xff0c;\u68c0\u67e5\u662f\u5426\u5b58\u5728\u5f02\u5e38\u7684\u4fee\u6539\u8bb0\u5f55\u3002<\/p>\n<p>[root&#064;hlmcen69n3 ~]# more \/etc\/passwd<br \/>\nroot:x:0:0:root:\/root:\/bin\/bash<br \/>\nbin:x:1:1:bin:\/bin:\/sbin\/nologin<br \/>\ndaemon:x:2:2:daemon:\/sbin:\/sbin\/nologin<\/p>\n<p>[root&#064;hlmcen69n3 ~]# more \/etc\/shadow<br \/>\nroot:*LOCK*:14600::::::<br \/>\nbin:*:17246:0:99999:7:::<br \/>\ndaemon:*:17246:0:99999:7::<\/p>\n<p>\u6ce8\u610f\u89c2\u5bdf\u7528\u6237\u5bc6\u7801\u5b57\u6bb5\u662f\u5426\u88ab\u4fee\u6539&#xff0c;\u4ee5\u53ca\u662f\u5426\u5b58\u5728\u5f02\u5e38\u7684\u5bc6\u7801\u54c8\u5e0c\u503c\u3002<\/p>\n<p>04<\/p>\n<p>\u767b\u5f55\u4e8b\u4ef6\u8ffd\u8e2a&#xff1a;\u8c01\u5728\u5077\u5077\u6478\u6478&#xff1f;<\/p>\n<p>\u901a\u8fc7\u67e5\u770b \/var\/log\/lastlog \u65e5\u5fd7\u6587\u4ef6&#xff0c;\u53ef\u4ee5\u8ffd\u8e2a\u670d\u52a1\u5668\u6700\u8fd1\u7684\u6210\u529f\u767b\u5f55\u4e8b\u4ef6\u548c\u6700\u540e\u4e00\u6b21\u4e0d\u6210\u529f\u7684\u767b\u5f55\u4e8b\u4ef6\u3002<\/p>\n<p>[root&#064;hlmcen69n3 ~]# lastlog<br \/>\nUsername         Port     From             Latest<br \/>\nroot             **Never logged in**<br \/>\nbin              **Never logged in**<br \/>\ndaemon           **Never logged in**<\/p>\n<p>\u91cd\u70b9\u5173\u6ce8\u662f\u5426\u5b58\u5728\u5f02\u5e38\u7684\u767b\u5f55\u6765\u6e90 IP \u5730\u5740\u548c\u767b\u5f55\u65f6\u95f4\u3002<\/p>\n<p>05<\/p>\n<p>\u5b9e\u65f6\u5728\u7ebf\u7528\u6237&#xff1a;\u63ea\u51fa\u201c\u6f5c\u4f0f\u8005\u201d<\/p>\n<p>\u4f7f\u7528 who \u547d\u4ee4\u53ef\u4ee5\u67e5\u770b\u5f53\u524d\u767b\u5f55\u670d\u52a1\u5668\u7684\u6240\u6709\u7528\u6237&#xff0c;\u5bf9\u5e94\u7684\u65e5\u5fd7\u6587\u4ef6\u662f \/var\/run\/utmp\u3002<\/p>\n<p>[root&#064;hlmcen69n3 ~]# who<br \/>\nstone    pts\/0        2017-09-20 16:17 (X.X.X.X)<br \/>\ntest01   pts\/2        2017-09-20 16:47 (X.X.X.X)<\/p>\n<p>\u786e\u8ba4\u6240\u6709\u5728\u7ebf\u7528\u6237\u662f\u5426\u90fd\u662f\u6388\u6743\u7528\u6237&#xff0c;\u5e76\u68c0\u67e5\u662f\u5426\u5b58\u5728\u5f02\u5e38\u7684\u7ec8\u7aef\u8fde\u63a5\u3002<\/p>\n<p>06<\/p>\n<p>\u5386\u53f2\u767b\u5f55\u7528\u6237&#xff1a;\u4e0d\u653e\u8fc7\u4efb\u4f55\u53ef\u7591\u75d5\u8ff9<\/p>\n<p>\u901a\u8fc7 last \u547d\u4ee4\u53ef\u4ee5\u67e5\u770b\u670d\u52a1\u5668\u521b\u5efa\u4ee5\u6765\u6240\u6709\u767b\u5f55\u8fc7\u7684\u7528\u6237&#xff0c;\u5bf9\u5e94\u7684\u65e5\u5fd7\u6587\u4ef6\u662f \/var\/log\/wtmp\u3002<\/p>\n<p>[root&#064;hlmcen69n3 ~]# last<\/p>\n<p>test01   pts\/1        X.X.X.X         Wed Sep 20 16:50   still logged in<br \/>\ntest01   pts\/2        X.X.X.X         Wed Sep 20 16:47 &#8211; 16:49  (00:02)<br \/>\nstone    pts\/1        X.X.X.X         Wed Sep 20 16:46 &#8211; 16:47  (00:01)<br \/>\nstone    pts\/0        X.X.X.X         Wed Sep 20 16:17   still logged in<\/p>\n<p>\u4ed4\u7ec6\u5ba1\u67e5\u5386\u53f2\u767b\u5f55\u8bb0\u5f55&#xff0c;\u67e5\u627e\u662f\u5426\u5b58\u5728\u5f02\u5e38\u7684\u767b\u5f55\u7528\u6237\u548c\u767b\u5f55\u65f6\u95f4\u6bb5\u3002<\/p>\n<p>07<\/p>\n<p>\u8fde\u63a5\u65f6\u957f\u7edf\u8ba1&#xff1a;\u8c01\u5728\u5077\u5077\u5360\u7528\u8d44\u6e90&#xff1f;<\/p>\n<p>ac -dp \u547d\u4ee4\u53ef\u4ee5\u67e5\u770b\u670d\u52a1\u5668\u6240\u6709\u7528\u6237\u7684\u8fde\u63a5\u65f6\u957f&#xff08;\u5c0f\u65f6&#xff09;&#xff0c;\u540c\u6837\u4f9d\u8d56\u4e8e \/var\/log\/wtmp \u65e5\u5fd7\u6587\u4ef6\u3002<\/p>\n<p>[root&#064;hlmcen69n3 ~]# ac -dp<br \/>\nstone               11.98<br \/>\nSep 15             total        11.98<br \/>\nstone               67.06<br \/>\nSep 18             total        67.06<br \/>\nstone                1.27<br \/>\ntest01               0.24<br \/>\nToday              total         1.50<\/p>\n<p>\u5bf9\u6bd4\u7528\u6237\u7684\u8fde\u63a5\u65f6\u957f&#xff0c;\u5982\u679c\u53d1\u73b0\u67d0\u4e2a\u7528\u6237\u7684\u8fde\u63a5\u65f6\u957f\u660e\u663e\u5f02\u5e38&#xff0c;\u5c31\u9700\u8981\u8fdb\u4e00\u6b65\u8c03\u67e5\u3002<\/p>\n<p>08<\/p>\n<p>\u6d41\u91cf\u5f02\u5e38\u76d1\u63a7&#xff1a;\u8b66\u60d5\u201c\u6697\u6d41\u6d8c\u52a8\u201d<\/p>\n<p>\u5982\u679c\u670d\u52a1\u5668\u4ea7\u751f\u4e86\u5f02\u5e38\u6d41\u91cf&#xff0c;\u53ef\u4ee5\u4f7f\u7528 tcpdump \u547d\u4ee4\u6293\u53d6\u7f51\u7edc\u5305&#xff0c;\u5206\u6790\u6d41\u91cf\u60c5\u51b5\u3002\u4e5f\u53ef\u4ee5\u4f7f\u7528 iperf \u5de5\u5177\u8fdb\u884c\u7f51\u7edc\u6027\u80fd\u6d4b\u8bd5&#xff0c;\u8bc4\u4f30\u662f\u5426\u5b58\u5728\u5f02\u5e38\u6d41\u91cf\u3002<\/p>\n<p>09<\/p>\n<p>\u5b89\u5168\u65e5\u5fd7\u5206\u6790&#xff1a;\u4ece secure \u4e2d\u5bfb\u627e\u7ebf\u7d22<\/p>\n<p>\/var\/log\/secure \u65e5\u5fd7\u6587\u4ef6\u8bb0\u5f55\u4e86\u4e0e\u5b89\u5168\u76f8\u5173\u7684\u4e8b\u4ef6&#xff0c;\u4f8b\u5982\u7528\u6237\u767b\u5f55\u3001\u6743\u9650\u9a8c\u8bc1\u7b49\u3002\u901a\u8fc7\u5206\u6790\u8be5\u6587\u4ef6&#xff0c;\u53ef\u4ee5\u5c1d\u8bd5\u53d1\u73b0\u5165\u4fb5\u8005\u7684\u86db\u4e1d\u9a6c\u8ff9\u3002<\/p>\n<p>[root&#064;hlmcen69n3 ~]# cat \/var\/log\/secure | grep -i &#034;accepted password&#034;<br \/>\nSep 20 12:47:20 hlmcen69n3 sshd[37193]: Accepted password  for stone from X.X.X.X port 15898 ssh2<br \/>\nSep 20 16:17:47 hlmcen69n3 sshd[38206]: Accepted password  for stone from X.X.X.X port 9140 ssh2<br \/>\nSep 20 16:46:00 hlmcen69n3 sshd[38511]: Accepted password  for stone from X.X.X.X port 2540 ssh2<br \/>\nSep 20 16:47:16 hlmcen69n3 sshd[38605]: Accepted password  for test01 from X.X.X.X port 10790 ssh2<br \/>\nSep 20 16:50:04 hlmcen69n3 sshd[38652]: Accepted password  for test01 from X.X.X.X port 28956 ssh2<\/p>\n<p>\u91cd\u70b9\u5173\u6ce8 &#034;Accepted password&#034; \u76f8\u5173\u7684\u65e5\u5fd7&#xff0c;\u68c0\u67e5\u662f\u5426\u5b58\u5728\u66b4\u529b\u7834\u89e3\u3001\u5f31\u53e3\u4ee4\u7b49\u5b89\u5168\u95ee\u9898\u3002<\/p>\n<p>10<\/p>\n<p>\u5f02\u5e38\u8fdb\u7a0b\u6392\u67e5&#xff1a;\u63ea\u51fa\u5e55\u540e\u9ed1\u624b<\/p>\n<p>10.1\u3001\u4f7f\u7528 top \u547d\u4ee4\u8bc6\u522b\u53ef\u7591\u8fdb\u7a0b<\/p>\n<p>\u901a\u8fc7 top \u547d\u4ee4\u53ef\u4ee5\u5b9e\u65f6\u67e5\u770b\u670d\u52a1\u5668\u7684\u8fdb\u7a0b\u72b6\u6001&#xff0c;\u91cd\u70b9\u5173\u6ce8 CPU \u5360\u7528\u7387\u3001\u5185\u5b58\u5360\u7528\u7387\u5f02\u5e38\u7684\u8fdb\u7a0b\u3002<\/p>\n<\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"143\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418130248-68024d784be74.jpg\" width=\"554\" \/><\/p>\n<p>10.2\u3001\u5b9a\u4f4d\u8fdb\u7a0b\u7684\u53ef\u6267\u884c\u6587\u4ef6<\/p>\n<p>\u5728 \/proc \u865a\u62df\u6587\u4ef6\u7cfb\u7edf\u76ee\u5f55\u4e0b&#xff0c;\u53ef\u4ee5\u627e\u5230\u6bcf\u4e2a\u8fdb\u7a0b\u5bf9\u5e94\u7684\u53ef\u6267\u884c\u6587\u4ef6\u3002<\/p>\n<p>[root&#064;hlmcen69n3 ~]# ll \/proc\/1850\/ | grep -i exe<br \/>\nlrwxrwxrwx. 1 root root 0 Sep 15 12:31 exe -&gt; \/usr\/bin\/python<\/p>\n<p>[root&#064;hlmcen69n3 ~]# ll \/usr\/bin\/python<br \/>\n-rwxr-xr-x. 2 root root 9032 Aug 18  2016 \/usr\/bin\/python<\/p>\n<p>\u901a\u8fc7\u68c0\u67e5\u53ef\u6267\u884c\u6587\u4ef6\u7684\u8def\u5f84\u548c\u5c5e\u6027&#xff0c;\u53ef\u4ee5\u5224\u65ad\u8fdb\u7a0b\u662f\u5426\u5408\u6cd5\u3002<\/p>\n<p>11<\/p>\n<p>\u6587\u4ef6\u6062\u590d&#xff1a;\u4ea1\u7f8a\u8865\u7262&#xff0c;\u72b9\u672a\u665a\u77e3<\/p>\n<p>\u5982\u679c\u786e\u8ba4\u670d\u52a1\u5668\u5df2\u7ecf\u88ab\u5165\u4fb5&#xff0c;\u5e76\u4e14\u91cd\u8981\u6587\u4ef6\u88ab\u5220\u9664&#xff0c;\u53ef\u4ee5\u5c1d\u8bd5\u627e\u56de\u88ab\u5220\u9664\u7684\u6587\u4ef6\u3002<\/p>\n<p>11.1\u3001\u6587\u4ef6\u5220\u9664\u539f\u7406<\/p>\n<p>\u5f53\u8fdb\u7a0b\u6253\u5f00\u67d0\u4e2a\u6587\u4ef6\u65f6&#xff0c;\u5373\u4f7f\u8be5\u6587\u4ef6\u88ab\u5220\u9664&#xff0c;\u53ea\u8981\u8fdb\u7a0b\u4fdd\u6301\u6253\u5f00\u72b6\u6001&#xff0c;\u6587\u4ef6\u4ecd\u7136\u5b58\u5728\u4e8e\u78c1\u76d8\u4e2d\u3002\u8fdb\u7a0b\u53ef\u4ee5\u901a\u8fc7\u6587\u4ef6\u63cf\u8ff0\u7b26\u7ee7\u7eed\u8bfb\u53d6\u548c\u5199\u5165\u8be5\u6587\u4ef6\u3002<\/p>\n<p>11.2\u3001\/proc \u6587\u4ef6\u7cfb\u7edf\u7684\u4f5c\u7528<\/p>\n<p>\/proc \u76ee\u5f55\u5305\u542b\u4e86\u53cd\u6620\u5185\u6838\u548c\u8fdb\u7a0b\u6811\u7684\u5404\u79cd\u6587\u4ef6&#xff0c;\u8fd9\u4e9b\u6587\u4ef6\u5b9e\u9645\u4e0a\u662f\u5185\u5b58\u4e2d\u7684\u6620\u5c04&#xff0c;\u800c\u4e0d\u662f\u78c1\u76d8\u4e0a\u7684\u771f\u5b9e\u6587\u4ef6\u3002lsof \u7a0b\u5e8f\u53ef\u4ee5\u5229\u7528\u8fd9\u4e9b\u4fe1\u606f\u6765\u663e\u793a\u8fdb\u7a0b\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u548c\u76f8\u5173\u7684\u6587\u4ef6\u540d\u3002<\/p>\n<p>11.3\u3001\u6587\u4ef6\u6062\u590d\u6b65\u9aa4<\/p>\n<p>\u5f53\u7cfb\u7edf\u4e2d\u7684\u67d0\u4e2a\u6587\u4ef6\u88ab\u610f\u5916\u5220\u9664\u540e&#xff0c;\u5982\u679c\u8fd8\u6709\u8fdb\u7a0b\u6b63\u5728\u8bbf\u95ee\u8be5\u6587\u4ef6&#xff0c;\u5c31\u53ef\u4ee5\u901a\u8fc7 lsof \u4ece \/proc \u76ee\u5f55\u4e0b\u6062\u590d\u8be5\u6587\u4ef6\u7684\u5185\u5bb9\u3002<\/p>\n<p>\u4f8b\u5982&#xff0c;\u5047\u8bbe \/var\/log\/secure \u6587\u4ef6\u88ab\u5220\u9664&#xff0c;\u6062\u590d\u6b65\u9aa4\u5982\u4e0b&#xff1a;<\/p>\n<li>\u786e\u8ba4\u6587\u4ef6\u5df2\u88ab\u5220\u9664&#xff1a;<\/li>\n<p>[root&#064;hlmcen69n3 ~]# ll \/var\/log\/secure<br \/>\nls: cannot access \/var\/log\/secure: No such file or directory<\/p>\n<li>\u4f7f\u7528 lsof \u547d\u4ee4\u67e5\u770b\u662f\u5426\u6709\u8fdb\u7a0b\u6253\u5f00\u8be5\u6587\u4ef6&#xff1a;<\/li>\n<p>[root&#064;hlmcen69n3 ~]# lsof | grep \/var\/log\/secure<br \/>\nrsyslogd    1264     root    4w   REG              8,1   3173904       263917 \/var\/log\/secure (deleted)<\/p>\n<li>\u4ece\u4e0a\u9762\u7684\u4fe1\u606f\u53ef\u4ee5\u770b\u5230 PID 1264&#xff08;rsyslogd&#xff09;\u6253\u5f00\u4e86\u8be5\u6587\u4ef6&#xff0c;\u5e76\u4e14\u6587\u4ef6\u5df2\u88ab\u6807\u8bb0\u4e3a\u5220\u9664\u3002\u53ef\u4ee5\u901a\u8fc7 \/proc\/1264\/fd\/4 \u67e5\u770b\u6587\u4ef6\u5185\u5bb9&#xff1a;<\/li>\n<p>[root&#064;hlmcen69n3 ~]# tail \/proc\/1264\/fd\/4<br \/>\nSep 20 16:47:21 hlmcen69n3 sshd[38511]: pam_unix(sshd:session): session closed for user stone<br \/>\n&#8230;<br \/>\nSep 20 17:18:52 hlmcen69n3 sshd[38790]: Connection closed by 51.15.81.90<\/p>\n<li>\u4f7f\u7528 I\/O \u91cd\u5b9a\u5411\u5c06\u6587\u4ef6\u5185\u5bb9\u6062\u590d&#xff1a;<\/li>\n<p>[root&#064;hlmcen69n3 ~]# cat \/proc\/1264\/fd\/4 &gt; \/var\/log\/secure<\/p>\n<li>\u518d\u6b21\u67e5\u770b \/var\/log\/secure&#xff0c;\u786e\u8ba4\u6587\u4ef6\u5df2\u6062\u590d\u3002<\/li>\n<p>\u5bf9\u4e8e\u65e5\u5fd7\u6587\u4ef6\u548c\u6570\u636e\u5e93\u7b49\u91cd\u8981\u6587\u4ef6&#xff0c;\u8fd9\u79cd\u6062\u590d\u65b9\u6cd5\u975e\u5e38\u6709\u6548\u3002<\/p>\n<p>\u603b\u7ed3<\/p>\n<p>\u670d\u52a1\u5668\u5b89\u5168\u81f3\u5173\u91cd\u8981&#xff0c;\u5e0c\u671b\u4ee5\u4e0a\u6392\u67e5\u65b9\u6848\u80fd\u5e2e\u52a9\u5927\u5bb6\u53ca\u65f6\u53d1\u73b0\u5e76\u89e3\u51b3\u5b89\u5168\u95ee\u9898\u3002\u8bf7\u52a1\u5fc5\u5b9a\u671f\u8fdb\u884c\u5b89\u5168\u68c0\u67e5&#xff0c;\u9632\u60a3\u4e8e\u672a\u7136&#xff01; &#096;&#096;&#096;<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418130248-68024d7860fd0.png\" \/><\/p>\n<p>\u9ed1\u5ba2\/\u7f51\u7edc\u5b89\u5168\u5b66\u4e60\u5305<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418130248-68024d786b9ce.png\" \/><\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418130248-68024d78755ee.png\" \/><\/p>\n<p>\u8d44\u6599\u76ee\u5f55<\/p>\n<li>\n<p>\u6210\u957f\u8def\u7ebf\u56fe&amp;\u5b66\u4e60\u89c4\u5212<\/p>\n<\/li>\n<li>\n<p>\u914d\u5957\u89c6\u9891\u6559\u7a0b<\/p>\n<\/li>\n<li>\n<p>SRC&amp;\u9ed1\u5ba2\u6587\u7c4d<\/p>\n<\/li>\n<li>\n<p>\u62a4\u7f51\u884c\u52a8\u8d44\u6599<\/p>\n<\/li>\n<li>\n<p>\u9ed1\u5ba2\u5fc5\u8bfb\u4e66\u5355<\/p>\n<\/li>\n<li>\n<p>\u9762\u8bd5\u9898\u5408\u96c6<\/p>\n<\/li>\n<p><span style=\"color:red\">\u56e0\u7bc7\u5e45\u6709\u9650&#xff0c;\u4ec5\u5c55\u793a\u90e8\u5206\u8d44\u6599&#xff0c;\u9700\u8981\u70b9\u51fb\u4e0b\u65b9\u94fe\u63a5\u5373\u53ef\u524d\u5f80\u83b7\u53d6<\/span><\/p>\n<p><span style=\"color:red\">*************************************CSDN\u5927\u793c\u5305&#xff1a;\u300a\u9ed1\u5ba2&amp;\u7f51\u7edc\u5b89\u5168\u5165\u95e8&amp;\u8fdb\u9636\u5b66\u4e60\u8d44\u6e90\u5305\u300b\u514d\u8d39\u5206\u4eab*************************************<\/span><\/p>\n<p>1.\u6210\u957f\u8def\u7ebf\u56fe&amp;\u5b66\u4e60\u89c4\u5212<\/p>\n<p>\u8981\u5b66\u4e60\u4e00\u95e8\u65b0\u7684\u6280\u672f&#xff0c;\u4f5c\u4e3a\u65b0\u624b\u4e00\u5b9a\u8981\u5148\u5b66\u4e60\u6210\u957f\u8def\u7ebf\u56fe&#xff0c;\u65b9\u5411\u4e0d\u5bf9&#xff0c;\u52aa\u529b\u767d\u8d39\u3002<\/p>\n<p>\u5bf9\u4e8e\u4ece\u6765\u6ca1\u6709\u63a5\u89e6\u8fc7\u7f51\u7edc\u5b89\u5168\u7684\u540c\u5b66&#xff0c;\u6211\u4eec\u5e2e\u4f60\u51c6\u5907\u4e86\u8be6\u7ec6\u7684\u5b66\u4e60\u6210\u957f\u8def\u7ebf\u56fe&amp;\u5b66\u4e60\u89c4\u5212\u3002\u53ef\u4ee5\u8bf4\u662f\u6700\u79d1\u5b66\u6700\u7cfb\u7edf\u7684\u5b66\u4e60\u8def\u7ebf&#xff0c;\u5927\u5bb6\u8ddf\u7740\u8fd9\u4e2a\u5927\u7684\u65b9\u5411\u5b66\u4e60\u51c6\u6ca1\u95ee\u9898\u3002<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418130248-68024d787eee1.png\" \/><\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418130249-68024d790e214.png\" \/> <span style=\"color:red\">\u56e0\u7bc7\u5e45\u6709\u9650&#xff0c;\u4ec5\u5c55\u793a\u90e8\u5206\u8d44\u6599&#xff0c;\u9700\u8981\u70b9\u51fb\u4e0b\u65b9\u94fe\u63a5\u5373\u53ef\u524d\u5f80\u83b7\u53d6<\/span><\/p>\n<p><span style=\"color:red\">*************************************CSDN\u5927\u793c\u5305&#xff1a;\u300a\u9ed1\u5ba2&amp;\u7f51\u7edc\u5b89\u5168\u5165\u95e8&amp;\u8fdb\u9636\u5b66\u4e60\u8d44\u6e90\u5305\u300b\u514d\u8d39\u5206\u4eab*************************************<\/span><\/p>\n<p>2.\u89c6\u9891\u6559\u7a0b<\/p>\n<p>\u5f88\u591a\u670b\u53cb\u90fd\u4e0d\u559c\u6b22\u6666\u6da9\u7684\u6587\u5b57&#xff0c;\u6211\u4e5f\u4e3a\u5927\u5bb6\u51c6\u5907\u4e86\u89c6\u9891\u6559\u7a0b&#xff0c;\u5176\u4e2d\u4e00\u5171\u670921\u4e2a\u7ae0\u8282&#xff0c;\u6bcf\u4e2a\u7ae0\u8282\u90fd\u662f\u5f53\u524d\u677f\u5757\u7684\u7cbe\u534e\u6d53\u7f29\u3002<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418130249-68024d7962072.png\" \/><\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418130249-68024d797b506.png\" \/> <span style=\"color:red\">\u56e0\u7bc7\u5e45\u6709\u9650&#xff0c;\u4ec5\u5c55\u793a\u90e8\u5206\u8d44\u6599&#xff0c;\u9700\u8981\u70b9\u51fb\u4e0b\u65b9\u94fe\u63a5\u5373\u53ef\u524d\u5f80\u83b7\u53d6<\/span><\/p>\n<p><span style=\"color:red\">*************************************CSDN\u5927\u793c\u5305&#xff1a;\u300a\u9ed1\u5ba2&amp;\u7f51\u7edc\u5b89\u5168\u5165\u95e8&amp;\u8fdb\u9636\u5b66\u4e60\u8d44\u6e90\u5305\u300b\u514d\u8d39\u5206\u4eab*************************************<\/span><\/p>\n<p>3.SRC&amp;\u9ed1\u5ba2\u6587\u7c4d<\/p>\n<p>\u5927\u5bb6\u6700\u559c\u6b22\u4e5f\u662f\u6700\u5173\u5fc3\u7684SRC\u6280\u672f\u6587\u7c4d&amp;\u9ed1\u5ba2\u6280\u672f\u4e5f\u6709\u6536\u5f55<\/p>\n<p>SRC\u6280\u672f\u6587\u7c4d&#xff1a;<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418130249-68024d79c3206.png\" \/><\/p>\n<p>\u9ed1\u5ba2\u8d44\u6599\u7531\u4e8e\u662f\u654f\u611f\u8d44\u6e90&#xff0c;\u8fd9\u91cc\u4e0d\u80fd\u76f4\u63a5\u5c55\u793a\u54e6&#xff01;<\/p>\n<p>4.\u62a4\u7f51\u884c\u52a8\u8d44\u6599<\/p>\n<p>\u5176\u4e2d\u5173\u4e8eHW\u62a4\u7f51\u884c\u52a8&#xff0c;\u4e5f\u51c6\u5907\u4e86\u5bf9\u5e94\u7684\u8d44\u6599&#xff0c;\u8fd9\u4e9b\u5185\u5bb9\u53ef\u76f8\u5f53\u4e8e\u6bd4\u8d5b\u7684\u91d1\u624b\u6307&#xff01;<\/p>\n<p>5.\u9ed1\u5ba2\u5fc5\u8bfb\u4e66\u5355<\/p>\n<p>**<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418130250-68024d7a3057a.jpg\" \/><\/p>\n<p>**<\/p>\n<p>6.\u9762\u8bd5\u9898\u5408\u96c6<\/p>\n<p>\u5f53\u4f60\u81ea\u5b66\u5230\u8fd9\u91cc&#xff0c;\u4f60\u5c31\u8981\u5f00\u59cb\u601d\u8003\u627e\u5de5\u4f5c\u7684\u4e8b\u60c5\u4e86&#xff0c;\u800c\u5de5\u4f5c\u7ed5\u4e0d\u5f00\u7684\u5c31\u662f\u771f\u9898\u548c\u9762\u8bd5\u9898\u3002<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418130250-68024d7a4e8b9.png\" \/><\/p>\n<p>\u66f4\u591a\u5185\u5bb9\u4e3a\u9632\u6b62\u548c\u8c10&#xff0c;\u53ef\u4ee5\u626b\u63cf\u83b7\u53d6~<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418130250-68024d7a7b1ae.png\" \/><\/p>\n<p><span style=\"color:red\">\u56e0\u7bc7\u5e45\u6709\u9650&#xff0c;\u4ec5\u5c55\u793a\u90e8\u5206\u8d44\u6599&#xff0c;\u9700\u8981\u70b9\u51fb\u4e0b\u65b9\u94fe\u63a5\u5373\u53ef\u524d\u5f80\u83b7\u53d6<\/span><\/p>\n<p><span 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