{"id":27249,"date":"2025-11-17T14:34:02","date_gmt":"2025-11-17T06:34:02","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-tw\/troubleshooting-abnormal-processes-on-hong-kong-servers\/"},"modified":"2025-11-17T14:36:16","modified_gmt":"2025-11-17T06:36:16","slug":"troubleshooting-abnormal-processes-on-hong-kong-servers","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-tw\/blog-tc\/troubleshooting-abnormal-processes-on-hong-kong-servers\/","title":{"rendered":"\u9999\u6e2f\u4f3a\u670d\u5668\u7570\u5e38\u7a0b\u5e8f\u6545\u969c\u6392\u67e5"},"content":{"rendered":"<h2><strong>\u7406\u89e3\u7a0b\u5e8f\u884c\u70ba\u548c\u521d\u59cb\u6aa2\u6e2c<\/strong><\/h2>\n<p>\u4f3a\u670d\u5668\u5b89\u5168\u4ecd\u7136\u662f<a href=\"https:\/\/www.varidata.com\/zh-tw\/server\/hk\/cn2\/\" target=\"_blank\">\u9999\u6e2f\u4f3a\u670d\u5668\u79df\u7528<\/a>\u74b0\u5883\u4e2d\u7684\u91cd\u8981\u95dc\u6ce8\u9ede\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u53ef\u80fd\u8868\u660e\u6f5b\u5728<a href=\"https:\/\/www.varidata.com\/zh-tw\/blog-tc\/implementing-multi-layer-firewalls-on-us-servers\/\" target=\"_blank\">\u5b89\u5168\u6f0f\u6d1e<\/a>\u7684\u7570\u5e38\u7a0b\u5e8f\u6642\u3002\u96a8\u8457\u7db2\u8def\u5a01\u8105\u7684\u6f14\u8b8a\uff0c\u7cfb\u7d71\u7ba1\u7406\u54e1\u5fc5\u9808\u4fdd\u6301\u8b66\u60d5\uff0c\u76e3\u63a7\u548c\u56de\u61c9\u53ef\u7591\u6d3b\u52d5\u3002\u672c\u7d9c\u5408\u6280\u8853\u6307\u5357\u63a2\u8a0e\u4e86\u4f3a\u670d\u5668\u74b0\u5883\u4e2d\u7a0b\u5e8f\u5206\u6790\u548c\u98a8\u96aa\u7de9\u89e3\u7684\u9ad8\u7d1a\u65b9\u6cd5\uff0c\u7279\u5225\u95dc\u6ce8\u9999\u6e2f\u9ad8\u901f\u3001\u9ad8\u5bc6\u5ea6\u4f3a\u670d\u5668\u79df\u7528\u57fa\u790e\u8a2d\u65bd\u6240\u9762\u81e8\u7684\u7368\u7279\u6311\u6230\u3002\u6211\u5011\u5c07\u6df1\u5165\u63a2\u8a0e\u547d\u4ee4\u5217\u5de5\u5177\u3001\u7cfb\u7d71\u76e3\u63a7\u6280\u8853\u548c\u5feb\u901f\u56de\u61c9\u5354\u5b9a\uff0c\u9019\u4e9b\u90fd\u662f\u5728\u7576\u4eca\u5a01\u8105\u74b0\u5883\u4e2d\u7dad\u8b77\u4f3a\u670d\u5668\u5b8c\u6574\u6027\u7684\u95dc\u9375\u8981\u7d20\u3002<\/p>\n<h2><strong>\u53ef\u7591\u7a0b\u5e8f\u7684\u95dc\u9375\u6307\u6a19<\/strong><\/h2>\n<p>\u7406\u89e3\u60e1\u610f\u7a0b\u5e8f\u7684\u5178\u578b\u7279\u5fb5\u9700\u8981\u7d93\u9a57\u548c\u7cfb\u7d71\u6027\u89c0\u5bdf\u3002\u4ee5\u4e0b\u662f\u9700\u8981\u76e3\u63a7\u7684\u95dc\u9375\u6307\u6a19\uff1a<\/p>\n<ul>\n<li>\u610f\u5916\u7684\u9ad8CPU\u4f7f\u7528\u7387\u6a21\u5f0f\uff0c\u7279\u5225\u662f\u5728\u975e\u5c16\u5cf0\u6642\u6bb5\u6216\u4f86\u81ea\u4e0d\u719f\u6089\u7684\u7a0b\u5e8f<\/li>\n<li>\u8207\u6b63\u5e38\u61c9\u7528\u7a0b\u5f0f\u884c\u70ba\u4e0d\u7b26\u7684\u7570\u5e38\u8a18\u61b6\u9ad4\u6d88\u8017\u66f2\u7dda<\/li>\n<li>\u4e0d\u898f\u5247\u7684\u7db2\u8def\u6d41\u91cf\u7279\u5fb5\uff0c\u7279\u5225\u662f\u8207\u672a\u77e5\u7d42\u7aef\u7684\u51fa\u7ad9\u9023\u63a5<\/li>\n<li>\u7cfb\u7d71\u76ee\u9304\u6216\u610f\u5916\u4f4d\u7f6e\u7684\u672a\u6388\u6b0a\u6a94\u6848\u7cfb\u7d71\u4fee\u6539<\/li>\n<li>\u6a21\u4eff\u5408\u6cd5\u7cfb\u7d71\u7a0b\u5e8f\u7684\u53ef\u7591\u7a0b\u5e8f\u540d\u7a31\u6216\u4f4d\u7f6e<\/li>\n<li>\u504f\u96e2\u6b63\u5e38\u7cfb\u7d71\u884c\u70ba\u7684\u7570\u5e38\u7236\u5b50\u7a0b\u5e8f\u95dc\u4fc2<\/li>\n<li>\u5728\u610f\u5916\u4f7f\u7528\u8005\u4e0a\u4e0b\u6587\u4e2d\u904b\u884c\u6216\u5177\u6709\u63d0\u5347\u6b0a\u9650\u7684\u7a0b\u5e8f<\/li>\n<li>\u7a0b\u5e8f\u7dad\u8b77\u7684\u7570\u5e38\u6a94\u6848\u63a7\u5236\u4ee3\u78bc\u6216\u901a\u8a0a\u7aef\u9023\u63a5<\/li>\n<\/ul>\n<h2><strong>\u57fa\u672c\u8a3a\u65b7\u6307\u4ee4<\/strong><\/h2>\n<p>\u70ba\u4e86\u9032\u884c\u6709\u6548\u7684\u7a0b\u5e8f\u5206\u6790\uff0c\u9700\u8981\u638c\u63e1\u9019\u4e9b\u57fa\u672c\u6307\u4ee4\u4e26\u7406\u89e3\u5176\u9ad8\u7d1a\u4f7f\u7528\u6a21\u5f0f\uff1a<\/p>\n<ol>\n<li>top -c -p $(pgrep -d&#8217;,&#8217; -f suspicious_pattern) &#8211; \u63d0\u4f9b\u5373\u6642\u7a0b\u5e8f\u76e3\u63a7\uff0c\u652f\u63f4\u81ea\u8a02\u7a0b\u5e8f\u9078\u64c7<\/li>\n<li>ps aux | grep -i [process_pattern] &#8211; \u63d0\u4f9b\u8a73\u7d30\u7684\u7a0b\u5e8f\u8cc7\u8a0a\uff0c\u652f\u63f4\u9748\u6d3b\u7684\u6a21\u5f0f\u5339\u914d<\/li>\n<li>lsof -p [pid] &#8211; \u6aa2\u67e5\u7279\u5b9a\u7a0b\u5e8f\u7684\u6240\u6709\u6a94\u6848\u63a7\u5236\u4ee3\u78bc\u548c\u7db2\u8def\u9023\u63a5<\/li>\n<li>strace -p [pid] &#8211; \u76e3\u63a7\u7cfb\u7d71\u547c\u53eb\u548c\u8a0a\u865f\u4ee5\u9032\u884c\u6df1\u5ea6\u7a0b\u5e8f\u884c\u70ba\u5206\u6790<\/li>\n<li>netstat -tupln &#8211; \u5c0d\u61c9\u6240\u6709\u6d3b\u52d5\u7684\u7db2\u8def\u9023\u63a5\u548c\u76e3\u807d\u57e0<\/li>\n<li>iotop -o -P -k &#8211; \u5373\u6642\u76e3\u63a7\u7a0b\u5e8f\u7684\u78c1\u789fI\/O\u4f7f\u7528\u60c5\u6cc1<\/li>\n<li>pidstat -d -p [pid] 1 &#8211; \u63d0\u4f9b\u8a73\u7d30\u7684\u6bcf\u500b\u7a0b\u5e8fI\/O\u7d71\u8a08\u8cc7\u8a0a<\/li>\n<li>pmap -x [pid] &#8211; \u5206\u6790\u7a0b\u5e8f\u8a18\u61b6\u9ad4\u5c0d\u61c9\u548c\u4f7f\u7528\u6a21\u5f0f<\/li>\n<\/ol>\n<h2><strong>\u9ad8\u7d1a\u7a0b\u5e8f\u8abf\u67e5\u6280\u8853<\/strong><\/h2>\n<p>\u5728\u8abf\u67e5\u53ef\u7591\u7a0b\u5e8f\u6642\uff0c\u63a1\u7528\u9019\u4e9b\u7d50\u5408\u50b3\u7d71\u548c\u73fe\u4ee3\u5206\u6790\u65b9\u6cd5\u7684\u9ad8\u7d1a\u6280\u8853\u3002\u7406\u89e3\u7a0b\u5e8f\u884c\u70ba\u9700\u8981\u4e00\u500b\u591a\u5c64\u6b21\u7684\u65b9\u6cd5\uff0c\u5728\u4e0d\u540c\u5c64\u9762\u6aa2\u67e5\u7cfb\u7d71\u4e92\u52d5\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528pstree\u9032\u884c\u7a0b\u5e8f\u6a39\u5206\u6790\uff0c\u8a73\u7d30\u6aa2\u67e5\u7236\u5b50\u95dc\u4fc2\u548c\u7e7c\u627f\u6a21\u5f0f<\/li>\n<li>\u4f7f\u7528strace\u9032\u884c\u7cfb\u7d71\u547c\u53eb\u8ffd\u8e64\uff0c\u91cd\u9ede\u95dc\u6ce8\u6a94\u6848\u64cd\u4f5c\u3001\u7db2\u8def\u6d3b\u52d5\u548c\u7a0b\u5e8f\u9593\u901a\u8a0a<\/li>\n<li>\u4f7f\u7528ss\u7b49\u8907\u96dc\u5de5\u5177\u9032\u884c\u7db2\u8def\u9023\u63a5\u5c0d\u61c9\u548c\u8a73\u7d30\u5354\u5b9a\u5206\u6790<\/li>\n<li>\u6a94\u6848\u63cf\u8ff0\u7b26\u6aa2\u67e5\uff0c\u7528\u65bc\u8b58\u5225\u6f5b\u5728\u7684\u8cc7\u6599\u6d29\u6f0f\u6216\u672a\u6388\u6b0a\u5b58\u53d6\u5617\u8a66<\/li>\n<li>\u4f7f\u7528gdb\u548cvolatility\u7b49\u9ad8\u7d1a\u5de5\u5177\u9032\u884c\u8a18\u61b6\u9ad4\u5c0d\u61c9\u5206\u6790\uff0c\u5be6\u73fe\u66f4\u6df1\u5165\u7684\u9451\u8b58<\/li>\n<li>\u901a\u904e\u5ef6\u9577\u76e3\u63a7\u671f\u9032\u884c\u8cc7\u6e90\u4f7f\u7528\u6a21\u5f0f\u5206\u6790<\/li>\n<li>\u7a0b\u5e8f\u6d3b\u52d5\u8207\u7cfb\u7d71\u4e8b\u4ef6\u548c\u65e5\u8a8c\u7684\u95dc\u806f\u5206\u6790<\/li>\n<\/ul>\n<h2><strong>\u5373\u6642\u76e3\u63a7\u5be6\u65bd<\/strong><\/h2>\n<p>\u5be6\u65bd\u5f37\u5927\u7684\u5373\u6642\u76e3\u63a7\u9700\u8981\u7d50\u5408\u591a\u7a2e\u5de5\u5177\u548c\u7b56\u7565\u7684\u7d9c\u5408\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f\u57fa\u672c\u76e3\u63a7\u5143\u4ef6\u7684\u8a73\u7d30\u5206\u89e3\uff1a<\/p>\n<ol>\n<li>\u7528\u65bc\u7cfb\u7d71\u547c\u53eb\u76e3\u63a7\u7684Auditd\uff1a\n<ul>\n<li>\u914d\u7f6e\u654f\u611f\u6a94\u6848\u5b58\u53d6\u898f\u5247<\/li>\n<li>\u76e3\u63a7\u53ef\u57f7\u884c\u6a94\u6848\u5efa\u7acb<\/li>\n<li>\u8ffd\u8e64\u6b0a\u9650\u63d0\u5347\u5617\u8a66<\/li>\n<li>\u8a18\u9304\u6240\u6709\u7db2\u8def\u9023\u63a5\u5617\u8a66<\/li>\n<\/ul>\n<\/li>\n<li>\u7528\u65bc\u5165\u4fb5\u9632\u7bc4\u7684Fail2ban\uff1a\n<ul>\n<li>\u81ea\u8a02\u76e3\u7344\u914d\u7f6e<\/li>\n<li>\u81ea\u9069\u61c9\u5c01\u9396\u9031\u671f<\/li>\n<li>IP\u767d\u540d\u55ae\u6a5f\u5236<\/li>\n<li>\u8207\u5176\u4ed6\u5b89\u5168\u5de5\u5177\u7684\u8b66\u5831\u95dc\u806f<\/li>\n<\/ul>\n<\/li>\n<li>\u7528\u65bc\u670d\u52d9\u76e3\u63a7\u7684Nagios\uff1a\n<ul>\n<li>\u81ea\u8a02\u670d\u52d9\u6aa2\u67e5<\/li>\n<li>\u6548\u80fd\u95be\u503c\u76e3\u63a7<\/li>\n<li>\u81ea\u52d5\u56de\u61c9\u8173\u672c<\/li>\n<li>\u8207\u901a\u77e5\u7cfb\u7d71\u6574\u5408<\/li>\n<\/ul>\n<\/li>\n<li>\u7528\u65bc\u7a0b\u5e8f\u884c\u70ba\u5206\u6790\u7684\u81ea\u8a02shell\u8173\u672c\uff1a\n<ul>\n<li>\u57fa\u6e96\u884c\u70ba\u5efa\u6a21<\/li>\n<li>\u7570\u5e38\u6aa2\u6e2c\u6f14\u7b97\u6cd5<\/li>\n<li>\u8cc7\u6e90\u4f7f\u7528\u8ffd\u8e64<\/li>\n<li>\u81ea\u52d5\u5831\u544a\u6a5f\u5236<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2><strong>\u5373\u6642\u98a8\u96aa\u7de9\u89e3\u6b65\u9a5f<\/strong><\/h2>\n<p>\u7576\u6aa2\u6e2c\u5230\u60e1\u610f\u7a0b\u5e8f\u6642\uff0c\u6642\u9593\u81f3\u95dc\u91cd\u8981\u3002\u5728\u4fdd\u6301\u7cfb\u7d71\u7a69\u5b9a\u548c\u8b49\u64da\u4fdd\u5b58\u7684\u540c\u6642\uff0c\u6309\u9806\u5e8f\u57f7\u884c\u9019\u4e9b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li>\u7a0b\u5e8f\u7d42\u6b62\uff1a\n<ul>\n<li>kill -9 [pid] \u7528\u65bc\u7acb\u5373\u7d42\u6b62<\/li>\n<li>killall -9 [process_name] \u7528\u65bc\u591a\u500b\u5be6\u4f8b<\/li>\n<li>pkill -f [pattern] \u7528\u65bc\u57fa\u65bc\u6a21\u5f0f\u7684\u7d42\u6b62<\/li>\n<\/ul>\n<\/li>\n<li>\u7db2\u8def\u9694\u96e2\uff1a\n<ul>\n<li>iptables -A INPUT -s [ip_address] -j DROP \u7528\u65bc\u5165\u7ad9\u9023\u63a5<\/li>\n<li>iptables -A OUTPUT -d [ip_address] -j DROP \u7528\u65bc\u51fa\u7ad9\u9023\u63a5<\/li>\n<li>\u8def\u7531\u8868\u4fee\u6539\u7528\u65bc\u7db2\u8def\u6bb5\u9694\u96e2<\/li>\n<\/ul>\n<\/li>\n<li>\u4e8c\u9032\u5236\u5206\u6790\uff1a\n<ul>\n<li>strings [suspicious_file] \u7528\u65bc\u521d\u6b65\u5075\u5bdf<\/li>\n<li>file [suspicious_file] \u7528\u65bc\u6a94\u6848\u985e\u578b\u8b58\u5225<\/li>\n<li>md5sum [suspicious_file] \u7528\u65bc\u96dc\u6e4a\u6bd4\u8f03<\/li>\n<\/ul>\n<\/li>\n<li>\u555f\u52d5\u9805\u8abf\u67e5\uff1a\n<ul>\n<li>systemctl list-unit-files \u7528\u65bc\u670d\u52d9\u5217\u8209<\/li>\n<li>crontab -l \u7528\u65bc\u6392\u7a0b\u4efb\u52d9\u5be9\u67e5<\/li>\n<li>\u6aa2\u67e5 \/etc\/init.d\/ \u4e2d\u7684\u820a\u5f0f\u555f\u52d5\u8173\u672c<\/li>\n<\/ul>\n<\/li>\n<li>\u65e5\u8a8c\u5206\u6790\uff1a\n<ul>\n<li>tail -f \/var\/log\/auth.log \u7528\u65bc\u8eab\u4efd\u9a57\u8b49\u5617\u8a66<\/li>\n<li>grep -r [pattern] \/var\/log\/ \u7528\u65bc\u5168\u9762\u65e5\u8a8c\u641c\u5c0b<\/li>\n<li>journalctl -xef \u7528\u65bcsystemd\u65e5\u8a8c\u76e3\u63a7<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2><strong>\u9810\u9632\u548c\u7cfb\u7d71\u5f37\u5316<\/strong><\/h2>\n<p>\u5be6\u65bd\u5168\u9762\u7684\u5b89\u5168\u63aa\u65bd\u9700\u8981\u7cfb\u7d71\u5316\u7684\u7cfb\u7d71\u5f37\u5316\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f\u57fa\u672c\u5b89\u5168\u5be6\u65bd\u7684\u8a73\u7d30\u5206\u89e3\uff1a<\/p>\n<ol>\n<li>\u5b9a\u671f\u5b89\u5168\u66f4\u65b0\u548c\u88dc\u4e01\u7ba1\u7406\uff1a\n<ul>\n<li>\u4f7f\u7528apt-cron\u6216yum-cron\u9032\u884c\u81ea\u52d5\u5b89\u5168\u88dc\u4e01\u90e8\u7f72<\/li>\n<li>\u8003\u616e\u5373\u6642\u4fee\u88dc\u7684\u6838\u5fc3\u66f4\u65b0\u7ba1\u7406<\/li>\n<li>\u914d\u7f6e\u6a94\u6848\u7248\u672c\u63a7\u5236\u548c\u5099\u4efd<\/li>\n<li>\u5f37\u5236\u5957\u4ef6\u7c3d\u7ae0\u9a57\u8b49<\/li>\n<\/ul>\n<\/li>\n<li>\u7db2\u8def\u5b58\u53d6\u63a7\u5236\u6e05\u55ae\u914d\u7f6e\uff1a\n<ul>\n<li>\u5be6\u65bd\u56b4\u683c\u7684iptables\u898f\u5247\u96c6<\/li>\n<li>\u5e36\u6709\u901f\u7387\u9650\u5236\u7684\u57fa\u65bc\u57e0\u7684\u5b58\u53d6\u63a7\u5236<\/li>\n<li>\u91dd\u5c0d\u9ad8\u98a8\u96aa\u5730\u5340\u7684\u5730\u7406IP\u904e\u6ffe<\/li>\n<li>\u4f7f\u7528ModSecurity\u7684\u61c9\u7528\u5c64\u904e\u6ffe<\/li>\n<\/ul>\n<\/li>\n<li>\u7a0b\u5e8f\u5e33\u6236\u8a2d\u5b9a\uff1a\n<ul>\n<li>\u914d\u7f6eauditd\u898f\u5247\u7528\u65bc\u7a0b\u5e8f\u8ffd\u8e64<\/li>\n<li>\u5be6\u65bd\u7a0b\u5e8f\u8cc7\u6e90\u9650\u5236<\/li>\n<li>\u8a2d\u5b9a\u7a0b\u5e8f\u57f7\u884c\u65e5\u8a8c\u8a18\u9304<\/li>\n<li>\u8207\u96c6\u4e2d\u5f0f\u65e5\u8a8c\u7cfb\u7d71\u6574\u5408<\/li>\n<\/ul>\n<\/li>\n<li>\u8cc7\u6e90\u9650\u5236\u5be6\u65bd\uff1a\n<ul>\n<li>\u4f7f\u7528cgroups\u7684CPU\u4f7f\u7528\u9650\u5236<\/li>\n<li>\u4f7f\u7528systemd slices\u7684\u8a18\u61b6\u9ad4\u9650\u5236<\/li>\n<li>\u5c0d\u53ef\u7591\u7a0b\u5e8f\u9032\u884cI\/O\u9650\u6d41<\/li>\n<li>\u4f7f\u7528tc\u9032\u884c\u7db2\u8def\u983b\u5bec\u63a7\u5236<\/li>\n<\/ul>\n<\/li>\n<li>\u81ea\u52d5\u5099\u4efd\u7cfb\u7d71\uff1a\n<ul>\n<li>\u589e\u91cf\u5099\u4efd\u6392\u7a0b<\/li>\n<li>\u7570\u5730\u5099\u4efd\u540c\u6b65<\/li>\n<li>\u5099\u4efd\u52a0\u5bc6\u5be6\u65bd<\/li>\n<li>\u5b9a\u671f\u9084\u539f\u6e2c\u8a66\u5354\u5b9a<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2><strong>\u6848\u4f8b\u5206\u6790\u7814\u7a76<\/strong><\/h2>\n<p>\u9999\u6e2f\u4f3a\u670d\u5668\u79df\u7528\u74b0\u5883\u4e2d\u6700\u8fd1\u7684\u5b89\u5168\u4e8b\u4ef6\u63ed\u793a\u4e86\u8907\u96dc\u7684\u653b\u64ca\u6a21\u5f0f\u3002\u4ee5\u4e0b\u662f\u503c\u5f97\u6ce8\u610f\u7684\u6848\u4f8b\u8a73\u7d30\u5206\u6790\uff1a<\/p>\n<ul>\n<li>\u52a0\u5bc6\u8ca8\u5e63\u6316\u7926\u611f\u67d3\uff1a\n<ul>\n<li>\u507d\u88dd\u6210\u7cfb\u7d71\u670d\u52d9\u7684\u7a0b\u5e8f<\/li>\n<li>\u52d5\u614b\u4e8c\u9032\u5236\u66ff\u63db\u6280\u8853<\/li>\n<li>CPU\u9650\u5236\u4ee5\u907f\u514d\u6aa2\u6e2c<\/li>\n<li>\u5206\u6563\u5f0f\u6316\u7926\u6c60\u9023\u63a5<\/li>\n<\/ul>\n<\/li>\n<li>DDoS\u6bad\u5c4d\u7db2\u8def\u53c3\u8207\uff1a\n<ul>\n<li>\u4f11\u7720\u7a0b\u5e8f\u555f\u52d5\u6a21\u5f0f<\/li>\n<li>\u547d\u4ee4\u548c\u63a7\u5236\u901a\u8a0a\u65b9\u6cd5<\/li>\n<li>\u6d41\u91cf\u653e\u5927\u6280\u8853<\/li>\n<li>\u4f7f\u7528\u7684\u53cd\u6aa2\u6e2c\u6a5f\u5236<\/li>\n<\/ul>\n<\/li>\n<li>\u8cc7\u6599\u7aca\u53d6\u5617\u8a66\uff1a\n<ul>\n<li>\u52a0\u5bc6\u901a\u9053\u5efa\u7acb\u65b9\u6cd5<\/li>\n<li>\u8cc7\u6599\u5eab\u64f7\u53d6\u6280\u8853<\/li>\n<li>\u5206\u968e\u6bb5\u8cc7\u6599\u50b3\u8f38\u6a21\u5f0f<\/li>\n<li>\u50c5\u8a18\u61b6\u9ad4\u8f09\u5165\u57f7\u884c<\/li>\n<\/ul>\n<\/li>\n<li>\u6b0a\u9650\u63d0\u5347\u653b\u64ca\uff1a\n<ul>\n<li>\u6838\u5fc3\u6f0f\u6d1e\u5229\u7528<\/li>\n<li>\u670d\u52d9\u914d\u7f6e\u932f\u8aa4\u6feb\u7528<\/li>\n<li>SUID\u4e8c\u9032\u5236\u6a94\u6848\u64cd\u7e31<\/li>\n<li>\u81ea\u8a02rootkit\u5be6\u4f5c<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2><strong>\u9ad8\u7d1a\u9451\u8b58\u6280\u8853<\/strong><\/h2>\n<p>\u751f\u7522\u74b0\u5883\u4e2d\u7684\u6578\u4f4d\u9451\u8b58\u9700\u8981\u8b39\u614e\u8655\u7406\u548c\u8907\u96dc\u7684\u5de5\u5177\u3002\u4ee5\u4e0b\u662f\u5168\u9762\u7684\u65b9\u6cd5\uff1a<\/p>\n<ol>\n<li>\u8a18\u61b6\u9ad4\u50be\u5370\u5206\u6790\uff1a\n<ul>\n<li>\u4f7f\u7528LiME\u9032\u884c\u5373\u6642\u8a18\u61b6\u9ad4\u53d6\u5f97<\/li>\n<li>Volatility\u6846\u67b6\u5206\u6790\u6280\u8853<\/li>\n<li>\u96b1\u85cf\u7a0b\u5e8f\u6aa2\u6e2c\u65b9\u6cd5<\/li>\n<li>\u8a18\u61b6\u9ad4\u5e38\u99d0\u60e1\u610f\u8edf\u9ad4\u8b58\u5225<\/li>\n<\/ul>\n<\/li>\n<li>\u7db2\u8def\u5c01\u5305\u64f7\u53d6\u5be9\u67e5\uff1a\n<ul>\n<li>\u4f7f\u7528tcpdump\u9032\u884c\u5b8c\u6574\u5c01\u5305\u64f7\u53d6<\/li>\n<li>\u4f7f\u7528Wireshark\u9032\u884c\u5354\u5b9a\u5206\u6790<\/li>\n<li>\u6d41\u91cf\u6a21\u5f0f\u7570\u5e38\u6aa2\u6e2c<\/li>\n<li>\u52a0\u5bc6\u6d41\u91cf\u5206\u6790\u65b9\u6cd5<\/li>\n<\/ul>\n<\/li>\n<li>\u6a94\u6848\u7cfb\u7d71\u6642\u9593\u8ef8\u91cd\u5efa\uff1a\n<ul>\n<li>Inode\u6642\u9593\u6233\u8a18\u5206\u6790<\/li>\n<li>\u6a94\u6848\u5b58\u53d6\u6a21\u5f0f\u5c0d\u61c9<\/li>\n<li>\u5df2\u522a\u9664\u6a94\u6848\u5fa9\u539f\u6280\u8853<\/li>\n<li>\u64f4\u5c55\u5c6c\u6027\u6aa2\u67e5<\/li>\n<\/ul>\n<\/li>\n<li>\u4e8c\u9032\u5236\u53cd\u5411\u5de5\u7a0b\uff1a\n<ul>\n<li>\u4f7f\u7528radare2\u9032\u884c\u975c\u614b\u5206\u6790<\/li>\n<li>\u4f7f\u7528gdb\u9032\u884c\u52d5\u614b\u5206\u6790<\/li>\n<li>\u7a0b\u5f0f\u78bc\u6d41\u7a0b\u91cd\u5efa<\/li>\n<li>API\u547c\u53eb\u8ffd\u8e64\u548c\u5206\u6790<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2><strong>\u81ea\u52d5\u56de\u61c9\u7cfb\u7d71<\/strong><\/h2>\n<p>\u73fe\u4ee3\u4f3a\u670d\u5668\u74b0\u5883\u9700\u8981\u8907\u96dc\u7684\u81ea\u52d5\u56de\u61c9\u6a5f\u5236\u3002\u4ee5\u4e0b\u662f\u57fa\u672c\u81ea\u52d5\u5b89\u5168\u5143\u4ef6\u7684\u8a73\u7d30\u5206\u89e3\uff1a<\/p>\n<ul>\n<li>\u7528\u65bc\u7a0b\u5e8f\u76e3\u63a7\u7684\u81ea\u8a02shell\u8173\u672c\uff1a\n<ul>\n<li>\u5373\u6642\u7a0b\u5e8f\u7c3d\u7ae0\u9a57\u8b49\uff1a\n<pre>\r\n        while true; do\r\n            ps aux | awk '$3 > 80.0 || $4 > 80.0 {print}' >> \/var\/log\/high_usage.log\r\n            sleep 60\r\n        done\r\n        <\/pre>\n<\/li>\n<li>\u4f7f\u7528\u898f\u5247\u904b\u7b97\u5f0f\u6a21\u5f0f\u7684\u81ea\u52d5\u5a01\u8105\u6aa2\u6e2c<\/li>\n<li>\u8cc7\u6e90\u4f7f\u7528\u8da8\u52e2\u548c\u7570\u5e38\u6aa2\u6e2c<\/li>\n<li>\u8207\u73fe\u6709\u76e3\u63a7\u7cfb\u7d71\u6574\u5408<\/li>\n<\/ul>\n<\/li>\n<li>\u81ea\u52d5\u9694\u96e2\u7a0b\u5f0f\uff1a\n<ul>\n<li>\u7db2\u8def\u5206\u6bb5\u89f8\u767c\u5668\uff1a\n<pre>\r\n        if [ $(netstat -an | grep ESTABLISHED | wc -l) -gt 1000 ]; then\r\n            iptables -A INPUT -p tcp --dport 80 -j DROP\r\n        fi\r\n        <\/pre>\n<\/li>\n<li>\u6aa2\u6e2c\u6642\u7684\u7a0b\u5e8f\u5bb9\u5668\u5316<\/li>\n<li>\u81ea\u52d5\u5099\u4efd\u555f\u52d5<\/li>\n<li>\u670d\u52d9\u5bb9\u932f\u79fb\u8f49\u6a5f\u5236<\/li>\n<\/ul>\n<\/li>\n<li>\u8b66\u5831\u95dc\u806f\u7cfb\u7d71\uff1a\n<ul>\n<li>\u65e5\u8a8c\u5f59\u7e3d\u548c\u6a21\u5f0f\u5339\u914d<\/li>\n<li>\u57fa\u65bc\u6a5f\u5668\u5b78\u7fd2\u7684\u7570\u5e38\u6aa2\u6e2c<\/li>\n<li>\u591a\u6e90\u4e8b\u4ef6\u95dc\u806f<\/li>\n<li>\u81ea\u52d5\u4e8b\u4ef6\u5206\u985e<\/li>\n<\/ul>\n<\/li>\n<li>\u4e8b\u4ef6\u5831\u544a\u81ea\u52d5\u5316\uff1a\n<ul>\n<li>\u7d50\u69cb\u5316\u5831\u544a\u751f\u6210<\/li>\n<li>\u8b49\u64da\u8490\u96c6\u548c\u4fdd\u5b58<\/li>\n<li>\u5229\u5bb3\u95dc\u4fc2\u4eba\u901a\u77e5\u7cfb\u7d71<\/li>\n<li>\u5408\u898f\u6587\u4ef6\u81ea\u52d5\u5316<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2><strong>\u9762\u5411\u672a\u4f86\u7684\u5b89\u5168\u67b6\u69cb<\/strong><\/h2>\n<p>\u9999\u6e2f\u4f3a\u670d\u5668\u79df\u7528\u74b0\u5883\u4e2d\u7684\u5b89\u5168\u9700\u8981\u6301\u7e8c\u6f14\u9032\u3002\u4ee5\u4e0b\u662f\u7dad\u8b77\u9762\u5411\u672a\u4f86\u5b89\u5168\u7684\u5168\u9762\u65b9\u6cd5\uff1a<\/p>\n<ol>\n<li>\u65b0\u8208\u5a01\u8105\u6e96\u5099\uff1a\n<ul>\n<li>AI\u9a45\u52d5\u7684\u5a01\u8105\u6aa2\u6e2c\u6574\u5408<\/li>\n<li>\u96f6\u4fe1\u4efb\u67b6\u69cb\u5be6\u65bd<\/li>\n<li>\u91cf\u5b50\u5b89\u5168\u5bc6\u78bc\u898f\u5283<\/li>\n<li>\u5bb9\u5668\u5b89\u5168\u6700\u4f73\u5316<\/li>\n<\/ul>\n<\/li>\n<li>\u57fa\u790e\u8a2d\u65bd\u73fe\u4ee3\u5316\uff1a\n<ul>\n<li>\u5fae\u670d\u52d9\u5b89\u5168\u6a21\u5f0f<\/li>\n<li>\u7121\u4f3a\u670d\u5668\u5b89\u5168\u8003\u91cf<\/li>\n<li>\u908a\u7de3\u904b\u7b97\u5b89\u5168\u63aa\u65bd<\/li>\n<li>\u96f2\u7aef\u539f\u751f\u5b89\u5168\u6574\u5408<\/li>\n<\/ul>\n<\/li>\n<li>\u5b89\u5168\u81ea\u52d5\u5316\u9032\u5c55\uff1a\n<ul>\n<li>GitOps\u5b89\u5168\u5de5\u4f5c\u6d41\u7a0b<\/li>\n<li>\u57fa\u790e\u8a2d\u65bd\u5373\u7a0b\u5f0f\u78bc\uff08IaC\uff09\u5b89\u5168<\/li>\n<li>\u81ea\u52d5\u5316\u5408\u898f\u6aa2\u67e5<\/li>\n<li>\u5b89\u5168\u6e2c\u8a66\u81ea\u52d5\u5316<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u5728\u9999\u6e2f\u52d5\u614b\u7684\u4f3a\u670d\u5668\u79df\u7528\u74b0\u5883\u4e2d\u7dad\u8b77\u5f37\u5927\u7684\u4f3a\u670d\u5668\u5b89\u5168\u9700\u8981\u6301\u7e8c\u7684\u8b66\u89ba\u548c\u9069\u61c9\u3002\u5b9a\u671f\u5b89\u5168\u7a3d\u6838\u3001\u5168\u9762\u7684\u76e3\u63a7\u7cfb\u7d71\u548c\u8907\u96dc\u7684\u4e8b\u4ef6\u56de\u61c9\u7a0b\u5e8f\u69cb\u6210\u4e86\u5b89\u5168\u57fa\u790e\u8a2d\u65bd\u7684\u57fa\u790e\u3002\u96a8\u8457\u5a01\u8105\u7684\u6f14\u8b8a\uff0c\u6211\u5011\u7684\u5b89\u5168\u5be6\u52d9\u3001\u5de5\u5177\u548c\u65b9\u6cd5\u4e5f\u5fc5\u9808\u96a8\u4e4b\u767c\u5c55\u3002\u53ca\u6642\u4e86\u89e3\u65b0\u8208\u5a01\u8105\u3001\u7dad\u8b77\u66f4\u65b0\u7684\u5b89\u5168\u5354\u5b9a\uff0c\u4e26\u5b9a\u671f\u6e2c\u8a66\u60a8\u7684\u4e8b\u4ef6\u56de\u61c9\u80fd\u529b\uff0c\u4ee5\u78ba\u4fdd\u5c0d\u4f3a\u670d\u5668\u79df\u7528\u57fa\u790e\u8a2d\u65bd\u7684\u6700\u4f73\u4fdd\u8b77\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7406\u89e3\u7a0b\u5e8f\u884c\u70ba\u548c\u521d\u59cb\u6aa2\u6e2c 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