{"id":442657,"date":"2026-05-22T10:19:45","date_gmt":"2026-05-22T02:19:45","guid":{"rendered":"https:\/\/idc.net\/help\/?p=442657"},"modified":"2026-05-08T10:21:55","modified_gmt":"2026-05-08T02:21:55","slug":"%e6%9c%8d%e5%8a%a1%e5%99%a8%e8%a2%ab%e5%85%a5%e4%be%b5%e4%ba%86%e6%80%8e%e4%b9%88%e5%88%a4%e6%96%ad%ef%bc%9flinux%e5%ae%89%e5%85%a8%e5%ae%a1%e8%ae%a1%e4%b8%8e%e5%85%a5%e4%be%b5%e7%97%95%e8%bf%b9","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/442657\/","title":{"rendered":"\u670d\u52a1\u5668\u88ab\u5165\u4fb5\u4e86\u600e\u4e48\u5224\u65ad\uff1fLinux\u5b89\u5168\u5ba1\u8ba1\u4e0e\u5165\u4fb5\u75d5\u8ff9\u6392\u67e5\u5b8c\u6574\u6d41\u7a0b"},"content":{"rendered":"<p>\u670d\u52a1\u5668\u51fa\u73b0 CPU \u5f02\u5e38\u98d9\u9ad8\u3001\u6d41\u91cf\u5f02\u5e38\u589e\u5927\u3001\u8d26\u53f7\u767b\u5f55\u6765\u81ea\u964c\u751f IP\u2014\u2014\u8fd9\u4e9b\u4fe1\u53f7\u53ef\u80fd\u610f\u5473\u7740\u670d\u52a1\u5668\u5df2\u7ecf\u88ab\u5165\u4fb5\u3002\u5165\u4fb5\u68c0\u6d4b\u7684\u96be\u70b9\u5728\u4e8e\uff1a\u653b\u51fb\u8005\u901a\u5e38\u4f1a\u5c3d\u91cf\u9690\u85cf\u81ea\u5df1\u7684\u75d5\u8ff9\uff0c\u666e\u901a\u7684\u67e5\u770b\u65b9\u5f0f\u53ef\u80fd\u65e0\u6cd5\u53d1\u73b0\u3002\u672c\u6587\u63d0\u4f9b\u4e00\u5957\u7cfb\u7edf\u7684 Linux \u670d\u52a1\u5668\u5165\u4fb5\u6392\u67e5\u6d41\u7a0b\uff0c\u5e2e\u4f60\u5728\u53d1\u73b0\u5f02\u5e38\u65f6\u5feb\u901f\u5224\u65ad\u662f\u5426\u88ab\u5165\u4fb5\uff0c\u5e76\u627e\u5230\u5165\u4fb5\u8def\u5f84\u3002<\/p>\n<hr \/>\n<h2>\u4e00\u3001\u5165\u4fb5\u7684\u5e38\u89c1\u4fe1\u53f7\uff1a\u8fd9\u4e9b\u60c5\u51b5\u9700\u8981\u8b66\u60d5<\/h2>\n<ul>\n<li>\ud83d\udd34 CPU \u6216\u7f51\u7edc\u6d41\u91cf\u6301\u7eed\u5f02\u5e38\uff0c\u4f46\u4e1a\u52a1\u91cf\u6ca1\u6709\u589e\u52a0<\/li>\n<li>\ud83d\udd34 \u7cfb\u7edf\u65e5\u5fd7\u4e2d\u51fa\u73b0\u6765\u81ea\u964c\u751f IP \u7684\u767b\u5f55\u8bb0\u5f55<\/li>\n<li>\ud83d\udd34 \u53d1\u73b0\u4e0d\u8ba4\u8bc6\u7684\u7cfb\u7edf\u7528\u6237\u6216 SSH \u516c\u94a5<\/li>\n<li>\ud83d\udd34 \u5b89\u5168\u8f6f\u4ef6\u6216\u9632\u706b\u5899\u89c4\u5219\u88ab\u4fee\u6539\/\u5220\u9664<\/li>\n<li>\ud83d\udd34 \/tmp\u3001\/dev\/shm \u7b49\u4e34\u65f6\u76ee\u5f55\u4e0b\u6709\u53ef\u6267\u884c\u6587\u4ef6<\/li>\n<li>\ud83d\udd34 \u6536\u5230 IDC \u901a\u77e5\uff0c\u670d\u52a1\u5668\u5728\u5bf9\u5916\u53d1\u9001\u5927\u91cf\u6d41\u91cf\uff08\u53c2\u4e0e DDoS \u6216\u53d1\u9001\u5783\u573e\u90ae\u4ef6\uff09<\/li>\n<li>\ud83d\udd34 \u5b9a\u65f6\u4efb\u52a1\uff08crontab\uff09\u4e2d\u51fa\u73b0\u4e0d\u8ba4\u8bc6\u7684\u6761\u76ee<\/li>\n<\/ul>\n<hr \/>\n<h2>\u4e8c\u3001\u7b2c\u4e00\u6b65\uff1a\u6392\u67e5\u5f02\u5e38\u767b\u5f55\u8bb0\u5f55<\/h2>\n<pre><code># \u67e5\u770b\u6210\u529f\u767b\u5f55\u7684\u5386\u53f2\u8bb0\u5f55\r\nlast | head -30\r\n\r\n# \u67e5\u770b\u767b\u5f55\u5931\u8d25\u8bb0\u5f55\uff08\u66b4\u529b\u7834\u89e3\u5c1d\u8bd5\uff09\r\nsudo lastb | head -30\r\n\r\n# \u67e5\u770b\u5f53\u524d\u5728\u7ebf\u7528\u6237\r\nwho\r\nw\r\n\r\n# \u67e5\u770b SSH \u8ba4\u8bc1\u65e5\u5fd7\uff08\u5173\u6ce8 Accepted \u8868\u793a\u767b\u5f55\u6210\u529f\uff09\r\nsudo grep \"Accepted\\|Failed\" \/var\/log\/auth.log | tail -50<\/code><\/pre>\n<p>\u91cd\u70b9\u5173\u6ce8\uff1a<\/p>\n<ul>\n<li>\u767b\u5f55\u65f6\u95f4\u662f\u5426\u5728\u975e\u5de5\u4f5c\u65f6\u95f4\uff08\u51cc\u6668\u7b49\uff09<\/li>\n<li>\u767b\u5f55\u6765\u6e90 IP \u662f\u5426\u662f\u4f60\u719f\u6089\u7684\u5730\u5740<\/li>\n<li>\u662f\u5426\u6709\u6765\u81ea\u591a\u4e2a\u4e0d\u540c IP \u7684\u77ed\u65f6\u95f4\u5185\u5927\u91cf\u5931\u8d25\u5c1d\u8bd5\uff08\u66b4\u529b\u7834\u89e3\uff09<\/li>\n<\/ul>\n<hr \/>\n<h2>\u4e09\u3001\u7b2c\u4e8c\u6b65\uff1a\u68c0\u67e5\u7cfb\u7edf\u7528\u6237\u4e0e SSH \u6388\u6743\u5bc6\u94a5<\/h2>\n<pre><code># \u67e5\u770b\u6240\u6709\u53ef\u767b\u5f55\u7684\u7cfb\u7edf\u7528\u6237\uff08UID \u5927\u4e8e 1000 \u901a\u5e38\u662f\u666e\u901a\u7528\u6237\uff09\r\nawk -F: '$3 &gt;= 1000 &amp;&amp; $3 &lt; 65534 {print $1, $3, $7}' \/etc\/passwd # \u67e5\u770b\u6709 sudo \u6743\u9650\u7684\u7528\u6237 grep -v '^#' \/etc\/sudoers | grep -v '^$' sudo cat \/etc\/sudoers.d\/* # \u68c0\u67e5\u6240\u6709\u7528\u6237\u7684 SSH \u6388\u6743\u5bc6\u94a5\uff08\u653b\u51fb\u8005\u5e38\u5728\u6b64\u6dfb\u52a0\u540e\u95e8\u516c\u94a5\uff09 for user in $(awk -F: '$3 &gt;= 0 {print $1}' \/etc\/passwd); do\r\n    home=$(eval echo ~$user)\r\n    if [ -f \"$home\/.ssh\/authorized_keys\" ]; then\r\n        echo \"=== $user ===\"\r\n        cat \"$home\/.ssh\/authorized_keys\"\r\n    fi\r\ndone<\/code><\/pre>\n<p>\u5982\u679c\u53d1\u73b0\u6709\u4e0d\u8ba4\u8bc6\u7684 SSH \u516c\u94a5\uff0c\u8bf4\u660e\u653b\u51fb\u8005\u5df2\u7ecf\u4e3a\u81ea\u5df1\u6dfb\u52a0\u4e86\u6301\u4e45\u8bbf\u95ee\u540e\u95e8\u3002<\/p>\n<hr \/>\n<h2>\u56db\u3001\u7b2c\u4e09\u6b65\uff1a\u6392\u67e5\u53ef\u7591\u8fdb\u7a0b<\/h2>\n<pre><code># \u6309 CPU \u4f7f\u7528\u7387\u6392\u5e8f\uff0c\u67e5\u770b\u524d15\u4e2a\u8fdb\u7a0b\r\nps aux --sort=-%cpu | head -15\r\n\r\n# \u67e5\u770b\u8fdb\u7a0b\u7684\u5b8c\u6574\u53ef\u6267\u884c\u6587\u4ef6\u8def\u5f84\r\nls -la \/proc\/$(pgrep suspicious_process)\/exe 2&gt;\/dev\/null\r\n\r\n# \u67e5\u627e\u4ece\u4e34\u65f6\u76ee\u5f55\u8fd0\u884c\u7684\u8fdb\u7a0b\uff08\u9ad8\u5ea6\u53ef\u7591\uff09\r\nps aux | awk '{print $11}' | grep -E \"^\/tmp|^\/dev\/shm|^\/var\/tmp\"\r\n\r\n# \u5217\u51fa\u6240\u6709\u8fdb\u7a0b\u53ca\u5176\u53ef\u6267\u884c\u6587\u4ef6\u8def\u5f84\r\nfor pid in \/proc\/[0-9]*; do\r\n    exe=$(readlink \"$pid\/exe\" 2&gt;\/dev\/null)\r\n    if [ -n \"$exe\" ]; then\r\n        echo \"PID: ${pid##*\/} \u2192 $exe\"\r\n    fi\r\ndone | grep -E \"\/tmp|\/dev\/shm|\/var\/tmp|deleted\"<\/code><\/pre>\n<p>\u7279\u522b\u8b66\u60d5\u8fdb\u7a0b\u540d\u540e\u663e\u793a <code>(deleted)<\/code> \u7684\u60c5\u51b5\u2014\u2014\u8fd9\u610f\u5473\u7740\u8fdb\u7a0b\u5bf9\u5e94\u7684\u53ef\u6267\u884c\u6587\u4ef6\u5df2\u88ab\u5220\u9664\uff08\u653b\u51fb\u8005\u5e38\u7528\u7684\u53cd\u53d6\u8bc1\u624b\u6bb5\uff09\u3002<\/p>\n<hr \/>\n<h2>\u4e94\u3001\u7b2c\u56db\u6b65\uff1a\u68c0\u67e5\u5b9a\u65f6\u4efb\u52a1\uff08\u6301\u4e45\u5316\u5e38\u7528\u624b\u6bb5\uff09<\/h2>\n<pre><code># \u68c0\u67e5\u5f53\u524d\u7528\u6237\u7684 crontab\r\ncrontab -l\r\n\r\n# \u68c0\u67e5 root \u7684 crontab\r\nsudo crontab -l\r\n\r\n# \u68c0\u67e5\u7cfb\u7edf\u7ea7\u5b9a\u65f6\u4efb\u52a1\r\ncat \/etc\/crontab\r\nls -la \/etc\/cron.d\/\r\nls -la \/etc\/cron.daily\/\r\nls -la \/etc\/cron.hourly\/\r\n\r\n# \u68c0\u67e5\u6240\u6709\u7528\u6237\u7684 crontab \u6587\u4ef6\r\nsudo ls \/var\/spool\/cron\/crontabs\/\r\nsudo cat \/var\/spool\/cron\/crontabs\/*  2&gt;\/dev\/null<\/code><\/pre>\n<p>\u653b\u51fb\u8005\u901a\u5e38\u901a\u8fc7 crontab \u5b9e\u73b0\u6301\u4e45\u5316\u2014\u2014\u5373\u4f7f\u4f60\u6740\u6389\u4e86\u6076\u610f\u8fdb\u7a0b\uff0c\u5b9a\u65f6\u4efb\u52a1\u4f1a\u5b9a\u671f\u91cd\u65b0\u542f\u52a8\u5b83\u3002<\/p>\n<hr \/>\n<h2>\u516d\u3001\u7b2c\u4e94\u6b65\uff1a\u6392\u67e5\u53ef\u7591\u6587\u4ef6<\/h2>\n<pre><code># \u67e5\u627e\u6700\u8fd124\u5c0f\u65f6\u5185\u88ab\u4fee\u6539\u7684\u6587\u4ef6\uff08\u6392\u9664\u7cfb\u7edf\u6b63\u5e38\u53d8\u5316\u76ee\u5f55\uff09\r\nsudo find \/ -mtime -1 -type f \\\r\n  -not -path \"\/proc\/*\" \\\r\n  -not -path \"\/sys\/*\" \\\r\n  -not -path \"\/run\/*\" \\\r\n  -not -path \"\/dev\/*\" \\\r\n  2&gt;\/dev\/null | head -50\r\n\r\n# \u5728\u4e34\u65f6\u76ee\u5f55\u67e5\u627e\u53ef\u6267\u884c\u6587\u4ef6\uff08\u6781\u5ea6\u53ef\u7591\uff09\r\nsudo find \/tmp \/var\/tmp \/dev\/shm -type f -executable 2&gt;\/dev\/null\r\n\r\n# \u67e5\u627e\u5177\u6709 SUID \u6743\u9650\u7684\u975e\u7cfb\u7edf\u6587\u4ef6\uff08\u653b\u51fb\u8005\u7528\u4e8e\u63d0\u6743\uff09\r\nsudo find \/ -perm -4000 -type f 2&gt;\/dev\/null | grep -v -E \"^\/(bin|sbin|usr\/bin|usr\/sbin|usr\/lib)\"\r\n\r\n# \u67e5\u627e\u9690\u85cf\u6587\u4ef6\uff08\u4ee5 . \u5f00\u5934\uff09\u5728\u4e0d\u5bfb\u5e38\u4f4d\u7f6e\r\nsudo find \/tmp \/var\/tmp \/dev\/shm -name \".*\" 2&gt;\/dev\/null<\/code><\/pre>\n<hr \/>\n<h2>\u4e03\u3001\u7b2c\u516d\u6b65\uff1a\u68c0\u67e5\u7f51\u7edc\u5916\u8054\uff08\u662f\u5426\u5728\u5411\u5916\u4f20\u8f93\u6570\u636e\uff09<\/h2>\n<pre><code># \u67e5\u770b\u5f53\u524d\u6240\u6709\u7f51\u7edc\u8fde\u63a5\r\nss -tnp\r\n\r\n# \u67e5\u627e\u5efa\u7acb\u8fde\u63a5\u7684\u5916\u90e8 IP\uff08\u8fc7\u6ee4\u672c\u5730\u5730\u5740\uff09\r\nss -tnp | grep ESTAB | grep -v \"127.0.0.1\\|::1\"\r\n\r\n# \u4f7f\u7528 netstat \u67e5\u770b\uff08\u6548\u679c\u7c7b\u4f3c\uff09\r\nnetstat -tnp 2&gt;\/dev\/null | grep ESTABLISHED\r\n\r\n# \u5b9e\u65f6\u76d1\u63a7\u7f51\u7edc\u8fde\u63a5\u53d8\u5316\r\nwatch -n 2 'ss -tnp | grep ESTAB'<\/code><\/pre>\n<p>\u5982\u679c\u53d1\u73b0\u670d\u52a1\u5668\u4e0e\u964c\u751f IP\uff08\u7279\u522b\u662f\u5883\u5916 IP\uff09\u4fdd\u6301\u5927\u91cf ESTABLISHED \u8fde\u63a5\uff0c\u9700\u8981\u91cd\u70b9\u8c03\u67e5\u3002<\/p>\n<pre><code># \u8ffd\u8e2a\u53ef\u7591 IP \u7684\u5f52\u5c5e\u5730\r\ncurl -s https:\/\/ipinfo.io\/\u53ef\u7591IP\/json<\/code><\/pre>\n<hr \/>\n<h2>\u516b\u3001\u7b2c\u4e03\u6b65\uff1a\u68c0\u67e5\u7cfb\u7edf\u5173\u952e\u6587\u4ef6\u662f\u5426\u88ab\u7be1\u6539<\/h2>\n<pre><code># \u68c0\u67e5 \/etc\/passwd \u548c \/etc\/shadow \u7684\u6700\u540e\u4fee\u6539\u65f6\u95f4\r\nls -la \/etc\/passwd \/etc\/shadow \/etc\/sudoers\r\n\r\n# \u68c0\u67e5 SSH \u914d\u7f6e\u662f\u5426\u88ab\u4fee\u6539\uff08\u91cd\u70b9\u770b PermitRootLogin \u548c AuthorizedKeysFile\uff09\r\ncat \/etc\/ssh\/sshd_config | grep -v \"^#\" | grep -v \"^$\"\r\n\r\n# \u4f7f\u7528 debsums \u9a8c\u8bc1\u7cfb\u7edf\u8f6f\u4ef6\u5305\u6587\u4ef6\u5b8c\u6574\u6027\uff08Debian\/Ubuntu\uff09\r\nsudo apt install debsums -y\r\nsudo debsums -s 2&gt;\/dev\/null | head -30\r\n# \u6709\u8f93\u51fa\u8bf4\u660e\u5bf9\u5e94\u6587\u4ef6\u88ab\u4fee\u6539\u8fc7<\/code><\/pre>\n<hr \/>\n<h2>\u4e5d\u3001\u4f7f\u7528 Rootkit \u68c0\u6d4b\u5de5\u5177<\/h2>\n<h3>chkrootkit<\/h3>\n<pre><code>sudo apt install chkrootkit -y\r\nsudo chkrootkit 2&gt;\/dev\/null | grep -i \"infected\\|suspicious\\|found\"<\/code><\/pre>\n<h3>rkhunter<\/h3>\n<pre><code>sudo apt install rkhunter -y\r\nsudo rkhunter --update\r\nsudo rkhunter --check --skip-keypress 2&gt;\/dev\/null | grep -E \"Warning|Found\"<\/code><\/pre>\n<p>\u8fd9\u4e24\u4e2a\u5de5\u5177\u4f1a\u68c0\u67e5\u5e38\u89c1\u7684 Rootkit \u7279\u5f81\u3001\u7cfb\u7edf\u547d\u4ee4\u662f\u5426\u88ab\u66ff\u6362\u3001\u53ef\u7591\u7684\u7f51\u7edc\u7aef\u53e3\u7b49\u3002\u6709\u544a\u8b66\u4fe1\u606f\u9700\u8981\u4eba\u5de5\u5224\u65ad\u662f\u5426\u4e3a\u771f\u6b63\u7684\u5a01\u80c1\u3002<\/p>\n<hr \/>\n<h2>\u5341\u3001\u5e94\u6025\u54cd\u5e94\uff1a\u786e\u8ba4\u5165\u4fb5\u540e\u7684\u5904\u7f6e\u6b65\u9aa4<\/h2>\n<p>\u5982\u679c\u7ecf\u8fc7\u6392\u67e5\u786e\u8ba4\u670d\u52a1\u5668\u5df2\u88ab\u5165\u4fb5\uff0c\u5efa\u8bae\u6309\u4ee5\u4e0b\u4f18\u5148\u7ea7\u5904\u7f6e\uff1a<\/p>\n<ol>\n<li><strong>\u9694\u79bb\u670d\u52a1\u5668<\/strong>\uff1a\u901a\u8fc7 IDC \u63a7\u5236\u53f0\u6216\u9632\u706b\u5899\u5207\u65ad\u670d\u52a1\u5668\u7684\u5165\u7ad9\u7f51\u7edc\u8fde\u63a5\uff08\u4fdd\u7559\u4f60\u81ea\u5df1\u7684 SSH \u8bbf\u95ee\uff09\uff0c\u9632\u6b62\u653b\u51fb\u8005\u7ee7\u7eed\u64cd\u4f5c\u6216\u6570\u636e\u7ee7\u7eed\u5916\u6cc4<\/li>\n<li><strong>\u5b8c\u6574\u53d6\u8bc1\u5feb\u7167<\/strong>\uff1a\u5728\u5904\u7406\u4e4b\u524d\uff0c\u5bf9\u670d\u52a1\u5668\u505a\u4e00\u4e2a\u5b8c\u6574\u5feb\u7167\uff08\u901a\u8fc7 IDC \u63a7\u5236\u53f0\uff09\uff0c\u4fdd\u7559\u8bc1\u636e\uff0c\u65b9\u4fbf\u540e\u7eed\u5206\u6790\u5165\u4fb5\u8def\u5f84<\/li>\n<li><strong>\u4fee\u6539\u6240\u6709\u51ed\u8bc1<\/strong>\uff1a\u91cd\u7f6e\u6240\u6709\u7cfb\u7edf\u8d26\u53f7\u5bc6\u7801\u3001SSH \u5bc6\u94a5\u3001\u6570\u636e\u5e93\u5bc6\u7801\u3001\u5e94\u7528 API \u5bc6\u94a5\u7b49<\/li>\n<li><strong>\u6e05\u9664\u540e\u95e8<\/strong>\uff1a\u5220\u9664\u53ef\u7591\u6587\u4ef6\u3001\u6076\u610f crontab\u3001\u672a\u6388\u6743 SSH \u516c\u94a5\u3001\u65b0\u589e\u7684\u7cfb\u7edf\u7528\u6237<\/li>\n<li><strong>\u4fee\u590d\u5165\u4fb5\u8def\u5f84<\/strong>\uff1a\u5206\u6790\u653b\u51fb\u8005\u662f\u5982\u4f55\u8fdb\u5165\u7684\uff08\u5f31\u5bc6\u7801\u3001\u672a\u6253\u8865\u4e01\u7684 Web \u6f0f\u6d1e\u3001Redis \u672a\u6388\u6743\u8bbf\u95ee\u7b49\uff09\uff0c\u9488\u5bf9\u6027\u4fee\u590d<\/li>\n<li><strong>\u8bc4\u4f30\u6570\u636e\u635f\u5931<\/strong>\uff1a\u68c0\u67e5\u6570\u636e\u5e93\u662f\u5426\u88ab\u62d6\u5e93\u3001\u91cd\u8981\u6587\u4ef6\u662f\u5426\u88ab\u52a0\u5bc6\uff08\u52d2\u7d22\u8f6f\u4ef6\uff09<\/li>\n<li><strong>\u4e25\u91cd\u60c5\u51b5\uff1a\u91cd\u88c5\u7cfb\u7edf<\/strong>\uff1a\u5982\u679c Rootkit \u5df2\u6df1\u5ea6\u690d\u5165\u7cfb\u7edf\uff0c\u65e0\u6cd5\u786e\u4fdd\u5f7b\u5e95\u6e05\u9664\uff0c\u6700\u5b89\u5168\u7684\u505a\u6cd5\u662f\u4ece\u5e72\u51c0\u7684\u7cfb\u7edf\u955c\u50cf\u91cd\u65b0\u90e8\u7f72\uff0c\u4ece\u5907\u4efd\u6062\u590d\u6570\u636e<\/li>\n<\/ol>\n<hr \/>\n<h2>\u5341\u4e00\u3001\u5e38\u89c1\u5165\u4fb5\u8def\u5f84\u4e0e\u9884\u9632\u63aa\u65bd<\/h2>\n<table style=\"border-collapse: collapse; width: 100%;\" border=\"1\" cellspacing=\"0\" cellpadding=\"8\">\n<thead>\n<tr style=\"background-color: #f5f5f5;\">\n<th>\u5165\u4fb5\u8def\u5f84<\/th>\n<th>\u9884\u9632\u63aa\u65bd<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>SSH \u5f31\u5bc6\u7801\u66b4\u529b\u7834\u89e3<\/td>\n<td>\u7981\u7528\u5bc6\u7801\u767b\u5f55\uff0c\u6539\u7528 SSH \u5bc6\u94a5\u8ba4\u8bc1\uff08\u53c2\u8003\u672c\u7cfb\u5217\u7b2c12\u7bc7\uff09<\/td>\n<\/tr>\n<tr>\n<td>Redis \u672a\u6388\u6743\u8bbf\u95ee<\/td>\n<td>Redis \u7ed1\u5b9a 127.0.0.1\uff0c\u8bbe\u7f6e\u5bc6\u7801\u8ba4\u8bc1\uff0c\u4e0d\u5bf9\u516c\u7f51\u66b4\u9732<\/td>\n<\/tr>\n<tr>\n<td>Web \u5e94\u7528\u6f0f\u6d1e\uff08SQL\u6ce8\u5165\/\u6587\u4ef6\u4e0a\u4f20\uff09<\/td>\n<td>\u53ca\u65f6\u66f4\u65b0 WordPress \u63d2\u4ef6\u3001\u6846\u67b6\u7248\u672c\uff0c\u914d\u7f6e WAF<\/td>\n<\/tr>\n<tr>\n<td>\u8fc7\u671f\u8f6f\u4ef6\u5305\u6f0f\u6d1e<\/td>\n<td>\u5b9a\u671f\u6267\u884c <code>sudo apt update &amp;&amp; sudo apt upgrade<\/code><\/td>\n<\/tr>\n<tr>\n<td>\u6570\u636e\u5e93\u5f31\u5bc6\u7801<\/td>\n<td>MySQL\/Redis \u8bbe\u7f6e\u5f3a\u5bc6\u7801\uff0c\u7981\u6b62\u8fdc\u7a0b root \u767b\u5f55<\/td>\n<\/tr>\n<tr>\n<td>\u4f9b\u5e94\u94fe\u653b\u51fb\uff08\u6076\u610f npm\/pip \u5305\uff09<\/td>\n<td>\u4ed4\u7ec6\u5ba1\u67e5\u4f9d\u8d56\u5305\u6765\u6e90\uff0c\u4f7f\u7528 lockfile \u9501\u5b9a\u7248\u672c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>\u603b\u7ed3<\/h2>\n<p>Linux \u670d\u52a1\u5668\u5165\u4fb5\u6392\u67e5\u9075\u5faa\"\u7531\u8868\u53ca\u91cc\"\u7684\u539f\u5219\uff1a<\/p>\n<ol>\n<li>\ud83d\udd0d <strong>\u5f02\u5e38\u767b\u5f55<\/strong> \u2192 \u68c0\u67e5 auth.log\u3001last \u547d\u4ee4<\/li>\n<li>\ud83d\udc64 <strong>\u53ef\u7591\u7528\u6237\/\u516c\u94a5<\/strong> \u2192 \u68c0\u67e5 \/etc\/passwd\u3001authorized_keys<\/li>\n<li>\u2699\ufe0f <strong>\u5f02\u5e38\u8fdb\u7a0b<\/strong> \u2192 ps aux\u3001\/proc \u76ee\u5f55\u5206\u6790<\/li>\n<li>\u23f0 <strong>\u6301\u4e45\u5316\u624b\u6bb5<\/strong> \u2192 crontab\u3001systemd service<\/li>\n<li>\ud83d\udcc1 <strong>\u6076\u610f\u6587\u4ef6<\/strong> \u2192 find \u547d\u4ee4\u3001Rootkit \u68c0\u6d4b\u5de5\u5177<\/li>\n<li>\ud83c\udf10 <strong>\u7f51\u7edc\u5916\u8054<\/strong> \u2192 ss -tnp \u5b9e\u65f6\u76d1\u63a7<\/li>\n<\/ol>\n<p>\u6700\u6709\u6548\u7684\u5b89\u5168\u7b56\u7565\u6c38\u8fdc\u662f\u9884\u9632\uff1a\u8d2d\u4e70<a title=\"\u9999\u6e2f\u4e91\u670d\u52a1\u5668\" href=\"https:\/\/idc.net\/cloud-hk\/\">\u540e\u6d6a\u4e91\u9999\u6e2f\u4e91\u670d\u52a1\u5668<\/a>\u540e\uff0c\u5efa\u8bae\u7acb\u5373\u5b8c\u6210 SSH \u5bc6\u94a5\u914d\u7f6e\u3001\u7981\u7528\u5bc6\u7801\u767b\u5f55\u3001\u914d\u7f6e UFW \u9632\u706b\u5899\u7b49\u57fa\u7840\u52a0\u56fa\uff08\u53c2\u8003\u672c\u7cfb\u5217\u7b2c12\u7bc7\uff09\uff0c\u5c06\u5165\u4fb5\u98ce\u9669\u964d\u5230\u6700\u4f4e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u670d\u52a1\u5668\u51fa\u73b0 CPU \u5f02\u5e38\u98d9\u9ad8\u3001\u6d41\u91cf\u5f02\u5e38\u589e\u5927\u3001\u8d26\u53f7\u767b\u5f55\u6765\u81ea\u964c\u751f IP\u2014\u2014\u8fd9\u4e9b\u4fe1\u53f7\u53ef\u80fd\u610f\u5473\u7740\u670d\u52a1\u5668\u5df2\u7ecf\u88ab\u5165\u4fb5\u3002\u5165\u4fb5 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[202645],"tags":[],"class_list":["post-442657","post","type-post","status-publish","format-standard","hentry","category-202645"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/442657","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=442657"}],"version-history":[{"count":1,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/442657\/revisions"}],"predecessor-version":[{"id":442658,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/442657\/revisions\/442658"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=442657"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=442657"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=442657"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}