{"id":16592,"date":"2024-11-18T11:22:17","date_gmt":"2024-11-18T03:22:17","guid":{"rendered":"https:\/\/fwq.ai\/blog\/16592\/"},"modified":"2024-11-18T11:22:17","modified_gmt":"2024-11-18T03:22:17","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8linux%e8%bf%9b%e8%a1%8c%e7%b3%bb%e7%bb%9f%e5%ae%89%e5%85%a8%e5%ae%a1%e8%ae%a1%e5%92%8c%e7%9b%91%e6%8e%a7","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/16592\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528Linux\u8fdb\u884c\u7cfb\u7edf\u5b89\u5168\u5ba1\u8ba1\u548c\u76d1\u63a7"},"content":{"rendered":"

\u5982\u4f55\u4f7f\u7528\u8fdb\u884c\u7cfb\u7edf\u5b89\u5168\u5ba1\u8ba1\u548c\u76d1\u63a7<\/p>\n

\u5f15\u8a00\uff1a
\u968f\u7740\u4e92\u8054\u7f51\u7684\u5feb\u901f\u53d1\u5c55\u548c\u6280\u672f\u7684\u4e0d\u65ad\u8fdb\u6b65\uff0c\u7cfb\u7edf\u5b89\u5168\u95ee\u9898\u53d8\u5f97\u8d8a\u6765\u8d8a\u91cd\u8981\u3002\u4e3a\u4e86\u786e\u4fdd\u7cfb\u7edf\u7684\u7a33\u5b9a\u548c\u5b89\u5168\uff0c\u7cfb\u7edf\u7ba1\u7406\u5458\u9700\u8981\u8fdb\u884c\u5e38\u89c4\u7684\u5b89\u5168\u5ba1\u8ba1\u548c\u76d1\u63a7\u3002Linux\u4f5c\u4e3a\u4e00\u79cd\u7a33\u5b9a\u3001\u53ef\u9760\u3001\u5f00\u6e90\u7684\u64cd\u4f5c\u7cfb\u7edf\uff0c\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u5de5\u5177\u548c\u529f\u80fd\uff0c\u53ef\u4ee5\u5e2e\u52a9\u7ba1\u7406\u5458\u8fdb\u884c\u7cfb\u7edf\u5b89\u5168\u5ba1\u8ba1\u548c\u76d1\u63a7\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528linux\u8fdb\u884c\u7cfb\u7edf\u5b89\u5168\u5ba1\u8ba1\u548c\u76d1\u63a7\uff0c\u4ee5\u53ca\u4e00\u4e9b\u5e38\u7528\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

\u4e00\u3001\u7cfb\u7edf\u5b89\u5168\u5ba1\u8ba1
\u7cfb\u7edf\u5b89\u5168\u5ba1\u8ba1\u65e8\u5728\u68c0\u67e5\u7cfb\u7edf\u662f\u5426\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u4ee5\u53ca\u662f\u5426\u6709\u672a\u6388\u6743\u7684\u8bbf\u95ee\u548c\u64cd\u4f5c\u3002Linux\u63d0\u4f9b\u4e86\u591a\u79cd\u5de5\u5177\u548c\u6280\u672f\uff0c\u53ef\u4ee5\u5e2e\u52a9\u7ba1\u7406\u5458\u8fdb\u884c\u7cfb\u7edf\u5b89\u5168\u5ba1\u8ba1\u3002<\/p>\n

1.1 \u7cfb\u7edf\u65e5\u5fd7\u5ba1\u8ba1
\u7cfb\u7edf\u65e5\u5fd7\u8bb0\u5f55\u4e86\u7cfb\u7edf\u4e2d\u53d1\u751f\u7684\u5404\u79cd\u4e8b\u4ef6\uff0c\u5982\u767b\u5f55\u3001\u6587\u4ef6\u8bbf\u95ee\u3001\u8fdb\u7a0b\u542f\u52a8\u7b49\u3002\u7ba1\u7406\u5458\u53ef\u4ee5\u901a\u8fc7\u67e5\u770b\u7cfb\u7edf\u65e5\u5fd7\u6765\u5224\u65ad\u662f\u5426\u5b58\u5728\u5f02\u5e38\u64cd\u4f5c\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528Linux\u7684\u65e5\u5fd7\u5206\u6790\u5de5\u5177awk\u7684\u793a\u4f8b\uff1a<\/p>\n

# \u67e5\u627e\u767b\u5f55\u5931\u8d25\u7684\u8bb0\u5f55\ngrep \"Failed password\" \/var\/log\/auth.log | awk '{ print $1 \" \" $2 \" \" $3 \" \" $11 }'\n\n# \u67e5\u627e\u6210\u529f\u767b\u5f55\u7684\u8bb0\u5f55\ngrep \"Accepted password\" \/var\/log\/auth.log | awk '{ print $1 \" \" $2 \" \" $3 \" \" $9 }'<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
1.2 \u6587\u4ef6\u5b8c\u6574\u6027\u76d1\u63a7
\u6587\u4ef6\u5b8c\u6574\u6027\u76d1\u63a7\u5de5\u5177\u53ef\u4ee5\u6bd4\u8f83\u7cfb\u7edf\u6587\u4ef6\u7684\u5f53\u524d\u72b6\u6001\u548c\u9884\u671f\u72b6\u6001\uff0c\u5982\u679c\u53d1\u73b0\u6587\u4ef6\u88ab\u7be1\u6539\uff0c\u5219\u4f1a\u751f\u6210\u8b66\u62a5\u3002Linux\u63d0\u4f9b\u4e86\u4e00\u6b3e\u5e38\u7528\u7684\u6587\u4ef6\u5b8c\u6574\u6027\u76d1\u63a7\u5de5\u5177Tripwire\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528Tripwire\u8fdb\u884c\u6587\u4ef6\u5b8c\u6574\u6027\u76d1\u63a7\u7684\u793a\u4f8b\uff1a<\/p>\n
# \u521d\u59cb\u5316Tripwire\u6570\u636e\u5e93\ntwadmin -m i -S \/etc\/twcfg.txt\n\n# \u68c0\u67e5\u6587\u4ef6\u5b8c\u6574\u6027\ntripwire --check<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
1.3 \u7f51\u7edc\u6d41\u91cf\u76d1\u63a7
\u7f51\u7edc\u6d41\u91cf\u76d1\u63a7\u53ef\u4ee5\u5e2e\u52a9\u7ba1\u7406\u5458\u68c0\u6d4b\u662f\u5426\u6709\u672a\u6388\u6743\u7684\u8bbf\u95ee\u548c\u6570\u636e\u4f20\u8f93\u3002Linux\u63d0\u4f9b\u4e86\u8bf8\u591a\u5de5\u5177\u548c\u6280\u672f\uff0c\u5982iptables\u3001tcpdump\u7b49\uff0c\u53ef\u4ee5\u5e2e\u52a9\u7ba1\u7406\u5458\u8fdb\u884c\u7f51\u7edc\u6d41\u91cf\u76d1\u63a7\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528iptables\u8fdb\u884c\u7f51\u7edc\u6d41\u91cf\u76d1\u63a7\u7684\u793a\u4f8b\uff1a<\/p>\n
# \u521b\u5efa\u4e00\u4e2a\u65b0\u7684iptables\u94fe\niptables -N LOGGING\n\n# \u5c06\u6240\u6709\u6d41\u91cf\u8f6c\u53d1\u5230LOGGING\u94fe\niptables -A INPUT -j LOGGING\niptables -A OUTPUT -j LOGGING\niptables -A FORWARD -j LOGGING\n\n# \u5728LOGGING\u94fe\u4e2d\u8bb0\u5f55\u65e5\u5fd7\niptables -A LOGGING -m limit --limit 2\/min -j LOG --log-prefix \"IPTables-Dropped: \" --log-level 4\n\n# \u67e5\u770b\u65e5\u5fd7\ntail -f \/var\/log\/messages<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4e8c\u3001\u7cfb\u7edf\u5b89\u5168\u76d1\u63a7
\u7cfb\u7edf\u5b89\u5168\u76d1\u63a7\u65e8\u5728\u5b9e\u65f6\u76d1\u63a7\u7cfb\u7edf\u7684\u72b6\u6001\uff0c\u53ca\u65f6\u53d1\u73b0\u5f02\u5e38\u6d3b\u52a8\u5e76\u91c7\u53d6\u76f8\u5e94\u63aa\u65bd\u3002Linux\u63d0\u4f9b\u4e86\u591a\u79cd\u5de5\u5177\u548c\u6280\u672f\uff0c\u53ef\u4ee5\u5e2e\u52a9\u7ba1\u7406\u5458\u8fdb\u884c\u7cfb\u7edf\u5b89\u5168\u76d1\u63a7\u3002<\/p>\n
2.1 \u8fdb\u7a0b\u76d1\u63a7
\u8fdb\u7a0b\u76d1\u63a7\u53ef\u4ee5\u5e2e\u52a9\u7ba1\u7406\u5458\u68c0\u6d4b\u7cfb\u7edf\u4e2d\u6b63\u5728\u8fd0\u884c\u7684\u8fdb\u7a0b\uff0c\u5e76\u76d1\u63a7\u5176\u6d3b\u52a8\u3002Linux\u63d0\u4f9b\u4e86\u591a\u79cd\u547d\u4ee4\u548c\u5de5\u5177\uff0c\u5982ps\u3001top\u3001htop\u7b49\uff0c\u53ef\u4ee5\u5e2e\u52a9\u7ba1\u7406\u5458\u8fdb\u884c\u8fdb\u7a0b\u76d1\u63a7\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528ps\u547d\u4ee4\u8fdb\u884c\u8fdb\u7a0b\u76d1\u63a7\u7684\u793a\u4f8b\uff1a<\/p>\n
# \u5217\u51fa\u6240\u6709\u8fdb\u7a0b\nps aux\n\n# \u6839\u636e\u8fdb\u7a0b\u540d\u8fc7\u6ee4\u8fdb\u7a0b\nps aux | grep \"process_name\"<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
2.2 \u7cfb\u7edf\u6027\u80fd\u76d1\u63a7
\u7cfb\u7edf\u6027\u80fd\u76d1\u63a7\u53ef\u4ee5\u5e2e\u52a9\u7ba1\u7406\u5458\u5b9e\u65f6\u76d1\u63a7\u7cfb\u7edf\u7684\u8d1f\u8f7d\u3001CPU\u4f7f\u7528\u7387\u3001\u5185\u5b58\u4f7f\u7528\u7387\u7b49\u5173\u952e\u6307\u6807\u3002Linux\u63d0\u4f9b\u4e86\u591a\u79cd\u547d\u4ee4\u548c\u5de5\u5177\uff0c\u5982top\u3001vmstat\u3001sar\u7b49\uff0c\u53ef\u4ee5\u5e2e\u52a9\u7ba1\u7406\u5458\u8fdb\u884c\u7cfb\u7edf\u6027\u80fd\u76d1\u63a7\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528top\u547d\u4ee4\u8fdb\u884c\u7cfb\u7edf\u6027\u80fd\u76d1\u63a7\u7684\u793a\u4f8b\uff1a<\/p>\n
#\u5b9e\u65f6\u67e5\u770b\u7cfb\u7edf\u8d1f\u8f7d\u548c\u8fdb\u7a0b\u72b6\u6001\ntop\n\n#\u6309CPU\u4f7f\u7528\u7387\u6392\u5e8f\u8fdb\u7a0b\ntop -o %CPU\n\n#\u6309\u5185\u5b58\u4f7f\u7528\u7387\u6392\u5e8f\u8fdb\u7a0b\ntop -o %MEM<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
2.3 \u7f51\u7edc\u8fde\u63a5\u76d1\u63a7
\u7f51\u7edc\u8fde\u63a5\u76d1\u63a7\u53ef\u4ee5\u5e2e\u52a9\u7ba1\u7406\u5458\u5b9e\u65f6\u76d1\u63a7\u7cfb\u7edf\u7684\u7f51\u7edc\u8fde\u63a5\u60c5\u51b5\uff0c\u53ca\u65f6\u53d1\u73b0\u5f02\u5e38\u8fde\u63a5\u3002Linux\u63d0\u4f9b\u4e86\u591a\u79cd\u547d\u4ee4\u548c\u5de5\u5177\uff0c\u5982netstat\u3001ss\u7b49\uff0c\u53ef\u4ee5\u5e2e\u52a9\u7ba1\u7406\u5458\u8fdb\u884c\u7f51\u7edc\u8fde\u63a5\u76d1\u63a7\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528netstat\u547d\u4ee4\u8fdb\u884c\u7f51\u7edc\u8fde\u63a5\u76d1\u63a7\u7684\u793a\u4f8b\uff1a<\/p>\n
# \u67e5\u770b\u6240\u6709\u7f51\u7edc\u8fde\u63a5\nnetstat -a\n\n# \u67e5\u770b\u7279\u5b9a\u7aef\u53e3\u7684\u7f51\u7edc\u8fde\u63a5\nnetstat -an | grep \":port_number\"<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u7ed3\u8bba\uff1a
\u672c\u6587\u4ecb\u7ecd\u4e86\u5982\u4f55\u4f7f\u7528linux\u8fdb\u884c\u7cfb\u7edf\u5b89\u5168\u5ba1\u8ba1\u548c\u76d1\u63a7\uff0c\u5e76\u63d0\u4f9b\u4e86\u4e00\u4e9b\u5e38\u7528\u7684\u4ee3\u7801\u793a\u4f8b\u3002\u7cfb\u7edf\u5b89\u5168\u5ba1\u8ba1\u548c\u76d1\u63a7\u662f\u786e\u4fdd\u7cfb\u7edf\u5b89\u5168\u7684\u91cd\u8981\u63aa\u65bd\uff0c\u7ba1\u7406\u5458\u5e94\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u7075\u6d3b\u8fd0\u7528\u5404\u79cd\u5de5\u5177\u548c\u6280\u672f\uff0c\u53ca\u65f6\u53d1\u73b0\u548c\u89e3\u51b3\u7cfb\u7edf\u5b89\u5168\u95ee\u9898\u3002\u901a\u8fc7\u6301\u7eed\u7684\u5b89\u5168\u5ba1\u8ba1\u548c\u76d1\u63a7\uff0c\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u548c\u5b89\u5168\u6027\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f7f\u7528Linux\u8fdb\u884c\u7cfb\u7edf\u5b89\u5168\u5ba1\u8ba1\u548c\u76d1\u63a7\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
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