{"id":45070,"date":"2025-06-22T08:06:17","date_gmt":"2025-06-22T00:06:17","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/45070.html"},"modified":"2025-06-22T08:06:17","modified_gmt":"2025-06-22T00:06:17","slug":"%e6%9c%8d%e5%8a%a1%e5%99%a8%e8%a2%ab%e9%bb%91%e5%90%8e%e7%9a%84%e7%ac%ac%e4%b8%80%e6%ad%a5%ef%bc%9a7%e4%b8%aa%e5%bf%85%e7%9c%8b%e6%97%a5%e5%bf%97%e6%8f%ad%e7%a4%ba%e6%94%bb%e5%87%bb%e8%80%85%e7%9a%84","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/45070.html","title":{"rendered":"\u670d\u52a1\u5668\u88ab\u9ed1\u540e\u7684\u7b2c\u4e00\u6b65\uff1a7\u4e2a\u5fc5\u770b\u65e5\u5fd7\u63ed\u793a\u653b\u51fb\u8005\u7684\u4e00\u4e3e\u4e00\u52a8"},"content":{"rendered":"<p>\u5f53\u670d\u52a1\u5668\u906d\u9047\u5b89\u5168\u4e8b\u4ef6\u65f6&#xff0c;\u7b2c\u4e00\u65f6\u95f4\u7684\u54cd\u5e94\u81f3\u5173\u91cd\u8981\u3002\u65e0\u8bba\u662f\u66b4\u529b\u7834\u89e3\u5c1d\u8bd5\u3001\u9519\u8bef\u914d\u7f6e\u7684\u9632\u706b\u5899&#xff0c;\u8fd8\u662f\u66f4\u4e25\u91cd\u7684\u5165\u4fb5&#xff0c;Linux\u7cfb\u7edf\u7684\u65e5\u5fd7\u6587\u4ef6\u90fd\u8bb0\u5f55\u7740\u4e8b\u4ef6\u7684\u771f\u76f8\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5728Ubuntu\u548cRed Hat\u670d\u52a1\u5668\u4e0a\u8c03\u67e5\u53ef\u7591\u5b89\u5168\u4e8b\u4ef6\u65f6&#xff0c;\u5e94\u7acb\u5373\u68c0\u67e5\u76847\u4e2a\u5173\u952e\u65e5\u5fd7\u6587\u4ef6\u3002<\/p>\n<h3>\u4e3a\u4ec0\u4e48\u65e5\u5fd7\u5206\u6790\u5982\u6b64\u91cd\u8981&#xff1f;<\/h3>\n<p>\u5b89\u5168\u4e8b\u4ef6\u53d1\u751f\u540e\u7684\u7b2c\u4e00\u5c0f\u65f6\u88ab\u79f0\u4e3a&#034;\u9ec4\u91d1\u65f6\u95f4&#034;\u3002\u5728\u8fd9\u6bb5\u65f6\u95f4\u5185&#xff0c;\u653b\u51fb\u8005\u53ef\u80fd\u4ecd\u5728\u7cfb\u7edf\u4e2d\u6d3b\u52a8&#xff0c;\u6216\u8005\u521a\u521a\u79bb\u5f00&#xff0c;\u7559\u4e0b\u4e86\u9c9c\u6d3b\u7684\u75d5\u8ff9\u3002\u6b63\u786e\u5206\u6790\u65e5\u5fd7\u4e0d\u4ec5\u80fd\u5e2e\u52a9\u6211\u4eec\u4e86\u89e3\u53d1\u751f\u4e86\u4ec0\u4e48&#xff0c;\u8fd8\u80fd\u63d0\u4f9b\u5173\u952e\u7ebf\u7d22\u6765&#xff1a;<\/p>\n<ul>\n<li>\u786e\u5b9a\u653b\u51fb\u7684\u6765\u6e90\u548c\u65b9\u6cd5<\/li>\n<li>\u8bc4\u4f30\u53d7\u5f71\u54cd\u7684\u7cfb\u7edf\u8303\u56f4<\/li>\n<li>\u6536\u96c6\u7528\u4e8e\u53d6\u8bc1\u7684\u8bc1\u636e<\/li>\n<li>\u9632\u6b62\u7c7b\u4f3c\u4e8b\u4ef6\u518d\u6b21\u53d1\u751f<\/li>\n<\/ul>\n<p>\u73b0\u5728&#xff0c;\u8ba9\u6211\u4eec\u6df1\u5165\u4e86\u89e3\u8fd97\u4e2a\u5173\u952e\u65e5\u5fd7\u6587\u4ef6&#xff0c;\u770b\u770b\u5b83\u4eec\u80fd\u544a\u8bc9\u6211\u4eec\u4ec0\u4e48\u3002<\/p>\n<h3>1. \u8eab\u4efd\u9a8c\u8bc1\u65e5\u5fd7&#xff1a;\/var\/log\/auth.log (Ubuntu) \/ \/var\/log\/secure (Red Hat)<\/h3>\n<p>\u8fd9\u4e9b\u6587\u4ef6\u8bb0\u5f55\u4e86\u6240\u6709\u4e0e\u8eab\u4efd\u9a8c\u8bc1\u76f8\u5173\u7684\u4e8b\u4ef6&#xff0c;\u662f\u68c0\u6d4b\u672a\u6388\u6743\u8bbf\u95ee\u7684\u7b2c\u4e00\u7ad9\u3002<\/p>\n<h4>\u8ffd\u8e2a\u5185\u5bb9&#xff1a;<\/h4>\n<ul>\n<li>SSH\u767b\u5f55\u5c1d\u8bd5&#xff08;\u6210\u529f\u548c\u5931\u8d25&#xff09;<\/li>\n<li>sudo\u547d\u4ee4\u4f7f\u7528\u8bb0\u5f55<\/li>\n<li>\u6743\u9650\u63d0\u5347\u6d3b\u52a8<\/li>\n<li>\u7528\u6237\u5207\u6362\u64cd\u4f5c<\/li>\n<\/ul>\n<h4>\u5b9e\u7528\u547d\u4ee4&#xff1a;<\/h4>\n<p># \u68c0\u67e5\u5931\u8d25\u7684\u767b\u5f55\u5c1d\u8bd5<br \/>\ngrep &#034;Failed password&#034; \/var\/log\/auth.log<\/p>\n<p># \u67e5\u770b\u6210\u529f\u7684\u767b\u5f55<br \/>\ngrep &#034;Accepted password&#034; \/var\/log\/auth.log<\/p>\n<p># \u68c0\u67e5\u7279\u5b9aIP\u7684\u767b\u5f55\u5c1d\u8bd5<br \/>\ngrep &#034;sshd.*[IP\u5730\u5740]&#034; \/var\/log\/auth.log<\/p>\n<h4>\u5b9e\u4f8b\u5206\u6790&#xff1a;<\/h4>\n<p>\u770b\u5230\u4ee5\u4e0b\u65e5\u5fd7\u884c\u65f6\u5e94\u8b66\u60d5&#xff1a;<\/p>\n<p>Jun 10 15:23:15 server sshd[12345]: Failed password for root from 192.168.1.100 port 54321 ssh2<br \/>\nJun 10 15:23:20 server sshd[12346]: Failed password for root from 192.168.1.100 port 54322 ssh2<br \/>\nJun 10 15:23:25 server sshd[12347]: Failed password for root from 192.168.1.100 port 54323 ssh2<\/p>\n<p>\u5206\u6790\u8981\u70b9&#xff1a;\u77ed\u65f6\u95f4\u5185\u591a\u6b21\u5c1d\u8bd5\u4ee5root\u8eab\u4efd\u767b\u5f55\u5931\u8d25&#xff0c;\u4e14\u6765\u6e90IP\u548c\u7aef\u53e3\u53d8\u5316\u89c4\u5f8b&#xff0c;\u8fd9\u662f\u5178\u578b\u7684\u66b4\u529b\u7834\u89e3\u653b\u51fb\u7279\u5f81\u3002<\/p>\n<h3>2. \u7cfb\u7edf\u65e5\u5fd7&#xff1a;\/var\/log\/syslog (Ubuntu) \/ \/var\/log\/messages (Red Hat)<\/h3>\n<p>\u8fd9\u4e9b\u662f\u7cfb\u7edf\u7684&#034;\u9ed1\u5323\u5b50&#034;&#xff0c;\u8bb0\u5f55\u4e86\u4ece\u5185\u6838\u5230\u5e94\u7528\u5c42\u7684\u5404\u79cd\u4e8b\u4ef6\u3002<\/p>\n<h4>\u8ffd\u8e2a\u5185\u5bb9&#xff1a;<\/h4>\n<ul>\n<li>\u7cfb\u7edf\u542f\u52a8\u548c\u5173\u95ed<\/li>\n<li>\u670d\u52a1\u5d29\u6e83\u548c\u91cd\u542f<\/li>\n<li>\u5f02\u5e38\u7684\u5b88\u62a4\u8fdb\u7a0b\u6d3b\u52a8<\/li>\n<li>\u5185\u6838\u8b66\u544a\u548c\u9519\u8bef<\/li>\n<\/ul>\n<h4>\u5b9e\u7528\u547d\u4ee4&#xff1a;<\/h4>\n<p># \u67e5\u770b\u6700\u8fd1\u7684\u7cfb\u7edf\u4e8b\u4ef6<br \/>\ntail -n 100 \/var\/log\/syslog<\/p>\n<p># \u68c0\u67e5\u7279\u5b9a\u65f6\u95f4\u6bb5\u7684\u65e5\u5fd7<br \/>\ngrep &#034;Jun 10 15:&#034; \/var\/log\/syslog<\/p>\n<p># \u67e5\u627e\u670d\u52a1\u5f02\u5e38<br \/>\ngrep -i &#034;error\\\\|fail\\\\|critical&#034; \/var\/log\/syslog<\/p>\n<h4>\u5b9e\u4f8b\u5206\u6790&#xff1a;<\/h4>\n<p>\u53ef\u7591\u7684\u670d\u52a1\u65e5\u5fd7\u793a\u4f8b&#xff1a;<\/p>\n<p>Jun 10 15:30:12 server systemd[1]: ssh.service: Main process exited, code&#061;killed, status&#061;9\/KILL<br \/>\nJun 10 15:30:13 server systemd[1]: ssh.service: Unit entered failed state<br \/>\nJun 10 15:30:15 server systemd[1]: ssh.service: Started OpenBSD Secure Shell server.<\/p>\n<p>\u5206\u6790\u8981\u70b9&#xff1a;SSH\u670d\u52a1\u88ab\u7ec8\u6b62&#xff08;\u53ef\u80fd\u662f\u653b\u51fb\u8005\u4e3a\u4e86\u6e05\u9664\u5f53\u524d\u4f1a\u8bdd&#xff09;\u7136\u540e\u8fc5\u901f\u91cd\u542f&#xff0c;\u8fd9\u53ef\u80fd\u662f\u653b\u51fb\u8005\u5728\u5c1d\u8bd5\u63a9\u76d6\u884c\u8e2a\u3002<\/p>\n<h3>3. \u767b\u5f55\u5931\u8d25\u65e5\u5fd7&#xff1a;\/var\/log\/faillog<\/h3>\n<p>\u8fd9\u4e2a\u65e5\u5fd7\u63d0\u4f9b\u4e86\u6bcf\u4e2a\u7528\u6237\u7684\u767b\u5f55\u5931\u8d25\u5c1d\u8bd5\u6c47\u603b&#xff0c;\u662f\u5feb\u901f\u8bc6\u522b\u5f02\u5e38\u6d3b\u52a8\u7684\u6709\u529b\u5de5\u5177\u3002<\/p>\n<h4>\u8ffd\u8e2a\u5185\u5bb9&#xff1a;<\/h4>\n<ul>\n<li>\u6309\u7528\u6237\u540d\u7edf\u8ba1\u7684\u5931\u8d25\u767b\u5f55\u6b21\u6570<\/li>\n<li>\u6700\u540e\u4e00\u6b21\u5931\u8d25\u5c1d\u8bd5\u7684\u65f6\u95f4<\/li>\n<li>\u5931\u8d25\u5c1d\u8bd5\u7684\u7ec8\u7aef<\/li>\n<\/ul>\n<h4>\u5b9e\u7528\u547d\u4ee4&#xff1a;<\/h4>\n<p># \u67e5\u770b\u6240\u6709\u7528\u6237\u7684\u5931\u8d25\u767b\u5f55\u7edf\u8ba1<br \/>\nfaillog<\/p>\n<p># \u91cd\u7f6e\u7279\u5b9a\u7528\u6237\u7684\u5931\u8d25\u8ba1\u6570<br \/>\nfaillog -u username -r<\/p>\n<h4>\u5b9e\u4f8b\u5206\u6790&#xff1a;<\/h4>\n<p>\u4f7f\u7528faillog\u547d\u4ee4\u540e\u53ef\u80fd\u770b\u5230\u7c7b\u4f3c\u8f93\u51fa&#xff1a;<\/p>\n<p>Username    Failures    Maximum    Latest<br \/>\nroot            50         0     06\/10\/22 15:23:45 &#043;0800<br \/>\nadmin           30         0     06\/10\/22 15:24:10 &#043;0800<br \/>\nwww-data         0         0     Never logged in<\/p>\n<p>\u5206\u6790\u8981\u70b9&#xff1a;root\u548cadmin\u7528\u6237\u6709\u5927\u91cf\u5931\u8d25\u5c1d\u8bd5&#xff0c;\u800c\u4e14\u6700\u540e\u5c1d\u8bd5\u65f6\u95f4\u63a5\u8fd1&#xff0c;\u8fd9\u8868\u660e\u653b\u51fb\u8005\u53ef\u80fd\u6b63\u5728\u5c1d\u8bd5\u9488\u5bf9\u5e38\u89c1\u7ba1\u7406\u8d26\u6237\u7684\u66b4\u529b\u7834\u89e3\u3002<\/p>\n<h3>4. \u5ba1\u8ba1\u65e5\u5fd7&#xff1a;\/var\/log\/audit\/audit.log&#xff08;\u9700\u5b89\u88c5AuditD&#xff09;<\/h3>\n<p>AuditD\u662fLinux\u7684\u5ba1\u8ba1\u7cfb\u7edf&#xff0c;\u63d0\u4f9b\u4e86\u5bf9\u7cfb\u7edf\u8c03\u7528\u548c\u6587\u4ef6\u8bbf\u95ee\u7684\u8be6\u7ec6\u8ddf\u8e2a\u3002<\/p>\n<h4>\u8ffd\u8e2a\u5185\u5bb9&#xff1a;<\/h4>\n<ul>\n<li>\u6587\u4ef6\u8bbf\u95ee\u548c\u4fee\u6539<\/li>\n<li>\u7cfb\u7edf\u8c03\u7528<\/li>\n<li>\u547d\u4ee4\u6267\u884c<\/li>\n<li>\u7528\u6237\u6743\u9650\u53d8\u66f4<\/li>\n<\/ul>\n<h4>\u5b9e\u7528\u547d\u4ee4&#xff1a;<\/h4>\n<p># \u67e5\u770b\u7528\u6237\u6267\u884c\u7684\u547d\u4ee4\u548c\u8ba4\u8bc1<br \/>\nausearch -m USER_CMD,USER_AUTH<\/p>\n<p># \u67e5\u770b\u5bf9\u7279\u5b9a\u6587\u4ef6\u7684\u8bbf\u95ee<br \/>\nausearch -f \/etc\/passwd<\/p>\n<p># \u68c0\u67e5\u7279\u5b9a\u65f6\u95f4\u6bb5\u7684\u5ba1\u8ba1\u4e8b\u4ef6<br \/>\nausearch -ts today -te now<\/p>\n<h4>\u5b9e\u4f8b\u5206\u6790&#xff1a;<\/h4>\n<p>\u53ef\u7591\u7684\u5ba1\u8ba1\u65e5\u5fd7&#xff1a;<\/p>\n<p>type&#061;USER_CMD msg&#061;audit(1654848300.452:3145): pid&#061;12345 uid&#061;0 auid&#061;1000 ses&#061;1 msg&#061;&#039;cwd&#061;&#034;\/home\/user&#034; cmd&#061;&#034;cat \/etc\/shadow&#034; terminal&#061;pts\/0 res&#061;success&#039;<\/p>\n<p>\u5206\u6790\u8981\u70b9&#xff1a;\u975eroot\u7528\u6237&#xff08;auid&#061;1000&#xff09;\u6267\u884c\u4e86\u9700\u8981root\u6743\u9650\u7684\u547d\u4ee4&#xff08;cat \/etc\/shadow&#xff09;&#xff0c;\u8fd9\u53ef\u80fd\u8868\u660e\u6743\u9650\u63d0\u5347\u653b\u51fb\u6210\u529f\u3002<\/p>\n<p>\u56fd\u5185\u73af\u5883\u63d0\u793a&#xff1a;\u5728\u4e2d\u56fd\u7684\u670d\u52a1\u5668\u73af\u5883\u4e2d&#xff0c;AuditD\u5e76\u975e\u9ed8\u8ba4\u5b89\u88c5\u3002\u5982\u679c\u4f60\u7684\u670d\u52a1\u5668\u5904\u4e8e\u654f\u611f\u884c\u4e1a&#xff08;\u5982\u91d1\u878d\u3001\u653f\u5e9c&#xff09;&#xff0c;\u5f3a\u70c8\u5efa\u8bae\u5b89\u88c5\u6b64\u5de5\u5177\u4ee5\u6ee1\u8db3\u7b49\u7ea7\u4fdd\u62a4\u8981\u6c42\u3002<\/p>\n<h3>5. Web\u670d\u52a1\u5668\u65e5\u5fd7&#xff1a;\/var\/log\/nginx\/access.log \/ \/var\/log\/apache2\/access.log<\/h3>\n<p>\u5bf9\u4e8e\u8fd0\u884cWeb\u670d\u52a1\u7684\u670d\u52a1\u5668&#xff0c;\u8fd9\u4e9b\u65e5\u5fd7\u8bb0\u5f55\u4e86\u6240\u6709HTTP\u8bf7\u6c42&#xff0c;\u662f\u8bc6\u522bWeb\u653b\u51fb\u7684\u5173\u952e\u3002<\/p>\n<h4>\u8ffd\u8e2a\u5185\u5bb9&#xff1a;<\/h4>\n<ul>\n<li>HTTP\u8bf7\u6c42\u65b9\u6cd5\u548cURL<\/li>\n<li>\u54cd\u5e94\u72b6\u6001\u7801<\/li>\n<li>\u5ba2\u6237\u7aefIP\u548cUser-Agent<\/li>\n<li>\u8bf7\u6c42\u5904\u7406\u65f6\u95f4<\/li>\n<\/ul>\n<h4>\u5b9e\u7528\u547d\u4ee4&#xff1a;<\/h4>\n<p># \u67e5\u627e\u53ef\u7591\u7684SQL\u6ce8\u5165\u5c1d\u8bd5<br \/>\ngrep -i &#034;select\\\\|union\\\\|insert&#034; \/var\/log\/nginx\/access.log<\/p>\n<p># \u68c0\u67e5\u5927\u91cf404\u9519\u8bef&#xff08;\u53ef\u80fd\u662f\u76ee\u5f55\u626b\u63cf&#xff09;<br \/>\ngrep &#034; 404 &#034; \/var\/log\/nginx\/access.log | awk &#039;{print $7}&#039; | sort | uniq -c | sort -nr<\/p>\n<p># \u67e5\u627e\u5f02\u5e38\u7684User-Agent<br \/>\ngrep -i &#034;curl\\\\|wget\\\\|python\\\\|go-http\\\\|sqlmap&#034; \/var\/log\/nginx\/access.log<\/p>\n<h4>\u5b9e\u4f8b\u5206\u6790&#xff1a;<\/h4>\n<p>\u53ef\u7591\u7684Web\u8bf7\u6c42\u6a21\u5f0f&#xff1a;<\/p>\n<p>192.168.1.100 &#8211; &#8211; [10\/Jun\/2022:15:40:12 &#043;0800] &#034;GET \/wp-admin\/install.php HTTP\/1.1&#034; 404 0 &#034;-&#034; &#034;sqlmap\/1.5.12#stable&#034;<br \/>\n192.168.1.100 &#8211; &#8211; [10\/Jun\/2022:15:40:15 &#043;0800] &#034;POST \/wp-login.php HTTP\/1.1&#034; 200 1234 &#034;-&#034; &#034;Mozilla\/5.0&#034;<\/p>\n<p>\u5206\u6790\u8981\u70b9&#xff1a;\u7b2c\u4e00\u884c\u663e\u793a\u4f7f\u7528sqlmap\u5de5\u5177&#xff08;\u4e00\u79cdSQL\u6ce8\u5165\u6d4b\u8bd5\u5de5\u5177&#xff09;\u5c1d\u8bd5\u8bbf\u95eeWordPress\u5b89\u88c5\u9875\u9762&#xff0c;\u968f\u540e\u662f\u5bf9\u767b\u5f55\u9875\u9762\u7684POST\u8bf7\u6c42&#xff0c;\u8fd9\u53ef\u80fd\u662f\u653b\u51fb\u8005\u5728\u5c1d\u8bd5\u5229\u7528WordPress\u6f0f\u6d1e\u3002<\/p>\n<h3>6. \u6700\u540e\u767b\u5f55\u65e5\u5fd7&#xff1a;\/var\/log\/lastlog<\/h3>\n<p>\u8fd9\u4e2a\u65e5\u5fd7\u663e\u793a\u6bcf\u4e2a\u7528\u6237\u6700\u540e\u4e00\u6b21\u6210\u529f\u767b\u5f55\u7684\u65f6\u95f4\u548c\u4f4d\u7f6e&#xff0c;\u6709\u52a9\u4e8e\u8bc6\u522b\u5f02\u5e38\u767b\u5f55\u6a21\u5f0f\u3002<\/p>\n<h4>\u8ffd\u8e2a\u5185\u5bb9&#xff1a;<\/h4>\n<ul>\n<li>\u7528\u6237\u7684\u6700\u540e\u767b\u5f55\u65f6\u95f4<\/li>\n<li>\u767b\u5f55\u7684\u7ec8\u7aef\u6216IP<\/li>\n<li>\u957f\u671f\u672a\u6d3b\u52a8\u7684\u8d26\u6237\u7a81\u7136\u88ab\u4f7f\u7528<\/li>\n<\/ul>\n<h4>\u5b9e\u7528\u547d\u4ee4&#xff1a;<\/h4>\n<p># \u67e5\u770b\u6240\u6709\u7528\u6237\u7684\u6700\u540e\u767b\u5f55\u8bb0\u5f55<br \/>\nlastlog<\/p>\n<p># \u68c0\u67e5\u7279\u5b9a\u7528\u6237\u7684\u6700\u540e\u767b\u5f55<br \/>\nlastlog -u username<\/p>\n<h4>\u5b9e\u4f8b\u5206\u6790&#xff1a;<\/h4>\n<p>lastlog\u547d\u4ee4\u8f93\u51fa\u793a\u4f8b&#xff1a;<\/p>\n<p>Username         Port     From             Latest<br \/>\nroot             pts\/0    192.168.1.100    Wed Jun 10 15:45:12 &#043;0800 2022<br \/>\nadmin            pts\/1    192.168.1.101    Never logged in<br \/>\nbackup           pts\/2    192.168.1.102    Sat Jan 01 00:00:00 &#043;0800 2022<\/p>\n<p>\u5206\u6790\u8981\u70b9&#xff1a;backup\u7528\u6237\u5728\u957f\u65f6\u95f4\u4e0d\u6d3b\u52a8\u540e\u7a81\u7136\u767b\u5f55&#xff0c;\u800cadmin\u7528\u6237\u663e\u793a\u4ece\u672a\u767b\u5f55\u8fc7\u5374\u6709\u6d3b\u52a8&#xff0c;\u8fd9\u4e9b\u90fd\u662f\u503c\u5f97\u8c03\u67e5\u7684\u5f02\u5e38\u60c5\u51b5\u3002<\/p>\n<p>\u6211\u7ed9\u5927\u5bb6\u51c6\u5907\u4e86\u4e00\u4efd\u5168\u5957\u7684\u300a\u7f51\u7edc\u5b89\u5168\u5165\u95e8&#043;\u8fdb\u9636\u5b66\u4e60\u8d44\u6e90\u5305\u300b\u5305\u542b\u5404\u79cd\u5e38\u7528\u5de5\u5177\u548c\u9ed1\u5ba2\u6280\u672f\u7535\u5b50\u4e66\u4ee5\u53ca\u89c6\u9891\u6559\u7a0b&#xff0c;\u9700\u8981\u7684\u5c0f\u4f19\u4f34\u53ef\u4ee5\u626b\u63cf\u4e0b\u65b9\u4e8c\u7ef4\u7801\u6216\u94fe\u63a5\u514d\u8d39\u9886\u53d6~ <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250622000613-685748f5281a8.png\" \/><\/p>\n<h3>7. \u7cfb\u7edf\u6d88\u606f\u7f13\u51b2\u533a&#xff1a;\/var\/log\/dmesg<\/h3>\n<p>\u5185\u6838\u73af\u7f13\u51b2\u533a\u6355\u83b7\u786c\u4ef6\u95ee\u9898\u6216\u4f4e\u7ea7\u522b\u8b66\u62a5&#xff0c;\u8fd9\u4e9b\u8b66\u62a5\u53ef\u80fd\u4e0d\u4f1a\u51fa\u73b0\u5728\u5176\u4ed6\u5730\u65b9\u3002<\/p>\n<h4>\u8ffd\u8e2a\u5185\u5bb9&#xff1a;<\/h4>\n<ul>\n<li>\u5185\u5b58\u8b66\u544a<\/li>\n<li>I\/O\u9519\u8bef<\/li>\n<li>\u9a71\u52a8\u7a0b\u5e8f\u5f02\u5e38<\/li>\n<li>\u786c\u4ef6\u76f8\u5173\u7684\u5b89\u5168\u95ee\u9898<\/li>\n<\/ul>\n<h4>\u5b9e\u7528\u547d\u4ee4&#xff1a;<\/h4>\n<p># \u67e5\u770b\u5b8c\u6574\u7684dmesg\u65e5\u5fd7<br \/>\ndmesg | less<\/p>\n<p># \u67e5\u627e\u53ef\u7591\u7684\u5185\u5b58\u8bbf\u95ee<br \/>\ndmesg | grep -i &#034;memory\\\\|segfault&#034;<\/p>\n<p># \u68c0\u67e5\u5f02\u5e38\u7684USB\u8bbe\u5907\u8fde\u63a5&#xff08;\u53ef\u80fd\u662f\u6076\u610f\u8bbe\u5907&#xff09;<br \/>\ndmesg | grep -i &#034;usb&#034;<\/p>\n<h4>\u5b9e\u4f8b\u5206\u6790&#xff1a;<\/h4>\n<p>\u53ef\u7591\u7684\u5185\u6838\u6d88\u606f&#xff1a;<\/p>\n<p>[12345.678901] general protection fault: 0000 [#1] SMP<br \/>\n[12345.678902] Process bash (pid: 1234, stack limit &#061; 0x00007ffabcd0e000)<br \/>\n[12345.678903] RIP: 0033:0x7f98765432ba<\/p>\n<p>\u5206\u6790\u8981\u70b9&#xff1a;\u7a0b\u5e8f\u5d29\u6e83\u53ef\u80fd\u662f\u7f13\u51b2\u533a\u6ea2\u51fa\u653b\u51fb\u7684\u7ed3\u679c&#xff0c;\u7279\u522b\u662f\u5982\u679c\u8fd9\u53d1\u751f\u5728\u5173\u952e\u7cfb\u7edf\u8fdb\u7a0b\u6216\u670d\u52a1\u4e2d\u3002<\/p>\n<h3>\u65e5\u5fd7\u5206\u6790\u7684\u6700\u4f73\u5b9e\u8df5<\/h3>\n<p>\u5728\u5904\u7406\u8fd9\u4e9b\u65e5\u5fd7\u65f6&#xff0c;\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4e13\u4e1a\u5efa\u8bae&#xff1a;<\/p>\n<li>\u5efa\u7acb\u57fa\u7ebf&#xff1a;\u5728\u6b63\u5e38\u60c5\u51b5\u4e0b\u4e86\u89e3\u60a8\u7684\u7cfb\u7edf\u65e5\u5fd7\u662f\u4ec0\u4e48\u6837\u5b50\u7684&#xff0c;\u8fd9\u6837\u5f02\u5e38\u60c5\u51b5\u66f4\u5bb9\u6613\u88ab\u53d1\u73b0<\/li>\n<li>\u4f7f\u7528\u65e5\u5fd7\u805a\u5408\u5de5\u5177&#xff1a;\u8003\u8651\u4f7f\u7528ELK Stack&#xff08;Elasticsearch\u3001Logstash\u3001Kibana&#xff09;\u6216Graylog\u7b49\u5de5\u5177\u96c6\u4e2d\u7ba1\u7406\u65e5\u5fd7<\/li>\n<li>\u8bbe\u7f6e\u65e5\u5fd7\u8f6e\u8f6c&#xff1a;\u786e\u4fdd\u65e5\u5fd7\u6587\u4ef6\u4e0d\u4f1a\u65e0\u9650\u589e\u957f&#xff0c;\u4f46\u4e5f\u8981\u4fdd\u7559\u8db3\u591f\u957f\u7684\u5386\u53f2\u8bb0\u5f55\u7528\u4e8e\u8c03\u67e5<\/li>\n<li>\u5b9e\u65bd\u5b8c\u6574\u6027\u76d1\u63a7&#xff1a;\u4f7f\u7528AIDE\u6216Tripwire\u7b49\u5de5\u5177\u76d1\u63a7\u7cfb\u7edf\u6587\u4ef6\u7684\u53d8\u5316<\/li>\n<li>\u65f6\u95f4\u540c\u6b65&#xff1a;\u786e\u4fdd\u6240\u6709\u670d\u52a1\u5668\u4f7f\u7528NTP\u4fdd\u6301\u65f6\u95f4\u540c\u6b65&#xff0c;\u8fd9\u5bf9\u4e8b\u4ef6\u5173\u8054\u81f3\u5173\u91cd\u8981<\/li>\n<h3>\u5e38\u89c1\u653b\u51fb\u6a21\u5f0f\u53ca\u5176\u65e5\u5fd7\u7279\u5f81<\/h3>\n<p>\u4e86\u89e3\u5e38\u89c1\u7684\u653b\u51fb\u6a21\u5f0f\u53ef\u4ee5\u5e2e\u52a9\u60a8\u66f4\u5feb\u5730\u8bc6\u522b\u5b89\u5168\u4e8b\u4ef6&#xff1a;<\/p>\n<table>\n<tr>\u653b\u51fb\u7c7b\u578b\u65e5\u5fd7\u7279\u5f81\u4e3b\u8981\u67e5\u770b\u7684\u65e5\u5fd7\u6587\u4ef6<\/tr>\n<tbody>\n<tr>\n<td align=\"left\">\u66b4\u529b\u7834\u89e3<\/td>\n<td align=\"left\">\u5927\u91cf\u5931\u8d25\u7684\u767b\u5f55\u5c1d\u8bd5&#xff0c;\u901a\u5e38\u9488\u5bf9\u5e38\u89c1\u7528\u6237\u540d<\/td>\n<td align=\"left\">auth.log\/secure, faillog<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u6743\u9650\u63d0\u5347<\/td>\n<td align=\"left\">\u666e\u901a\u7528\u6237\u6267\u884c\u7279\u6743\u547d\u4ee4&#xff0c;SUID\u4e8c\u8fdb\u5236\u6587\u4ef6\u7684\u5f02\u5e38\u4f7f\u7528<\/td>\n<td align=\"left\">audit.log, auth.log\/secure<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Web\u6ce8\u5165\u653b\u51fb<\/td>\n<td align=\"left\">\u5305\u542bSQL\u8bed\u6cd5\u7684\u5f02\u5e38URL\u8bf7\u6c42<\/td>\n<td align=\"left\">nginx\/apache access.log<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u6076\u610f\u811a\u672c\u6267\u884c<\/td>\n<td align=\"left\">\u5f02\u5e38\u7684cron\u4f5c\u4e1a&#xff0c;\u672a\u77e5\u8fdb\u7a0b\u7684\u542f\u52a8<\/td>\n<td align=\"left\">syslog\/messages, auth.log<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u6570\u636e\u7a83\u53d6<\/td>\n<td align=\"left\">\u5927\u91cf\u51fa\u7ad9\u6d41\u91cf&#xff0c;\u5bf9\u654f\u611f\u6587\u4ef6\u7684\u8bfb\u53d6<\/td>\n<td align=\"left\">audit.log, application logs<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u5b89\u5168\u4e8b\u4ef6\u54cd\u5e94\u6d41\u7a0b<\/h3>\n<p>\u5f53\u60a8\u901a\u8fc7\u65e5\u5fd7\u53d1\u73b0\u53ef\u7591\u6d3b\u52a8\u65f6&#xff0c;\u5efa\u8bae\u6309\u7167\u4ee5\u4e0b\u6d41\u7a0b\u8fdb\u884c\u5904\u7406&#xff1a;<\/p>\n<li>\u8bc6\u522b\u548c\u786e\u8ba4&#xff1a;\u786e\u8ba4\u662f\u5426\u786e\u5b9e\u5b58\u5728\u5b89\u5168\u4e8b\u4ef6&#xff0c;\u6536\u96c6\u521d\u6b65\u8bc1\u636e<\/li>\n<li>\u904f\u5236&#xff1a;\u91c7\u53d6\u63aa\u65bd\u9632\u6b62\u4e8b\u4ef6\u6269\u5927&#xff0c;\u5982\u65ad\u5f00\u7f51\u7edc\u8fde\u63a5\u6216\u505c\u6b62\u53d7\u5f71\u54cd\u7684\u670d\u52a1<\/li>\n<li>\u6839\u9664&#xff1a;\u79fb\u9664\u6076\u610f\u8f6f\u4ef6&#xff0c;\u4fee\u590d\u88ab\u5229\u7528\u7684\u6f0f\u6d1e<\/li>\n<li>\u6062\u590d&#xff1a;\u6062\u590d\u7cfb\u7edf\u5230\u6b63\u5e38\u8fd0\u884c\u72b6\u6001&#xff0c;\u786e\u4fdd\u5b89\u5168\u63aa\u65bd\u5230\u4f4d<\/li>\n<li>\u603b\u7ed3\u7ecf\u9a8c&#xff1a;\u5206\u6790\u4e8b\u4ef6\u539f\u56e0&#xff0c;\u66f4\u65b0\u5b89\u5168\u7b56\u7565\u548c\u9632\u5fa1\u63aa\u65bd<\/li>\n<h3>\u7ed3\u8bed<\/h3>\n<p>\u5f53\u5b89\u5168\u4e8b\u4ef6\u53d1\u751f\u65f6&#xff0c;\u6bcf\u4e00\u79d2\u90fd\u81f3\u5173\u91cd\u8981\u3002\u65e5\u5fd7\u662f\u63ed\u793a\u771f\u76f8\u7684\u5173\u952e&#xff0c;\u77e5\u9053\u5728\u54ea\u91cc\u67e5\u627e\u80fd\u591f\u8ba9\u60a8\u5feb\u901f\u660e\u786e\u95ee\u9898&#xff0c;\u5e76\u5728\u4e8b\u6001\u6269\u5927\u524d\u89e3\u51b3\u6839\u672c\u539f\u56e0\u3002<\/p>\n<p>\u517b\u6210\u5b9a\u671f\u68c0\u67e5\u8fd9\u4e9b\u5173\u952e\u65e5\u5fd7\u7684\u4e60\u60ef&#xff0c;\u4e0d\u4ec5\u80fd\u5e2e\u52a9\u60a8\u5728\u5b89\u5168\u4e8b\u4ef6\u53d1\u751f\u65f6\u8fc5\u901f\u54cd\u5e94&#xff0c;\u8fd8\u80fd\u5e2e\u52a9\u60a8\u4e86\u89e3\u7cfb\u7edf\u7684\u6b63\u5e38\u884c\u4e3a&#xff0c;\u4ece\u800c\u66f4\u5bb9\u6613\u8bc6\u522b\u5f02\u5e38\u60c5\u51b5\u3002\u8bb0\u4f4f&#xff0c;\u6700\u597d\u7684\u9632\u5fa1\u59cb\u4e8e\u4e86\u89e3\u60a8\u6b63\u5728\u4fdd\u62a4\u7684\u7cfb\u7edf\u3002<\/p>\n<p>\u7f51\u7edc\u5b89\u5168\u5b66\u4e60\u8d44\u6e90\u5206\u4eab:<\/p>\n<p>\u7ed9\u5927\u5bb6\u5206\u4eab\u4e00\u4efd\u5168\u5957\u7684\u7f51\u7edc\u5b89\u5168\u5b66\u4e60\u8d44\u6599&#xff0c;\u7ed9\u90a3\u4e9b\u60f3\u5b66\u4e60 \u7f51\u7edc\u5b89\u5168\u7684\u5c0f\u4f19\u4f34\u4eec\u4e00\u70b9\u5e2e\u52a9&#xff01;<\/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\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>\u56e0\u7bc7\u5e45\u6709\u9650&#xff0c;\u4ec5\u5c55\u793a\u90e8\u5206\u8d44\u6599&#xff0c;\u670b\u53cb\u4eec\u5982\u679c\u6709\u9700\u8981<font face=\"\u5e7c\u5706\" size=\"4\" color=\"red\">\u5168\u5957\u300a\u7f51\u7edc\u5b89\u5168\u5165\u95e8&#043;\u8fdb\u9636\u5b66\u4e60\u8d44\u6e90\u5305\u300b&#xff0c;\u8bf7\u770b\u4e0b\u65b9\u626b\u63cf\u5373\u53ef\u524d\u5f80\u83b7\u53d6 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250622000613-685748f5281a8.png\" \/><\/font><\/p>\n<h3>&#x1f449;1.\u6210\u957f\u8def\u7ebf\u56fe&amp;\u5b66\u4e60\u89c4\u5212&#x1f448;<\/h3>\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\" 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