{"id":15872,"date":"2024-11-18T16:18:45","date_gmt":"2024-11-18T08:18:45","guid":{"rendered":"https:\/\/fwq.ai\/blog\/15872\/"},"modified":"2024-11-18T16:18:45","modified_gmt":"2024-11-18T08:18:45","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8%e7%bd%91%e5%85%b3%e9%98%b2%e7%81%ab%e5%a2%99%e4%bf%9d%e6%8a%a4centos%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%9a%84%e7%bd%91%e7%bb%9c%e5%ae%89%e5%85%a8","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/15872\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528\u7f51\u5173\u9632\u706b\u5899\u4fdd\u62a4CentOS\u670d\u52a1\u5668\u7684\u7f51\u7edc\u5b89\u5168"},"content":{"rendered":"<p>\u5982\u4f55\u4f7f\u7528\u7f51\u5173\u9632\u706b\u5899\u4fdd\u62a4\u670d\u52a1\u5668\u7684\u7f51\u7edc\u5b89\u5168<\/p>\n<p>\u5728\u5982\u4eca\u9ad8\u5ea6\u4e92\u8054\u7684\u7f51\u7edc\u73af\u5883\u4e0b\uff0c\u670d\u52a1\u5668\u7684\u7f51\u7edc\u5b89\u5168\u95ee\u9898\u53d8\u5f97\u5c24\u4e3a\u91cd\u8981\u3002\u4f5c\u4e3a\u4e00\u79cd\u5e38\u89c1\u800c\u4e14\u5f3a\u5927\u7684\u9632\u62a4\u63aa\u65bd\uff0c\u7f51\u5173\u9632\u706b\u5899\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u4fdd\u62a4CentOS\u670d\u52a1\u5668\u7684\u7f51\u7edc\u5b89\u5168\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u7f51\u5173\u9632\u706b\u5899\u6765\u4fdd\u62a4CentOS\u670d\u52a1\u5668\u3002<\/p>\n<p>\u4e00\u3001\u5b89\u88c5\u548c\u914d\u7f6e\u7f51\u5173\u9632\u706b\u5899<\/p>\n<p>1\u3001\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5b89\u88c5\u4e00\u4e2a\u7f51\u5173\u9632\u706b\u5899\u8f6f\u4ef6\u5305\u3002\u5728CentOS\u4e2d\uff0c\u5e38\u7528\u7684\u7f51\u5173\u9632\u706b\u5899\u8f6f\u4ef6\u5305\u662fiptables\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5b89\u88c5iptables\uff1a<\/p>\n<pre>sudo yum install iptables<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>2\u3001\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u6211\u4eec\u9700\u8981\u914d\u7f6eiptables\u89c4\u5219\u3002\u5728CentOS\u4e2d\uff0ciptables\u89c4\u5219\u4fdd\u5b58\u5728\/etc\/sysconfig\/iptables\u6587\u4ef6\u4e2d\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8fdb\u884c\u914d\u7f6e\uff1a<\/p>\n<pre>sudo vi \/etc\/sysconfig\/iptables<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>3\u3001\u6253\u5f00iptables\u914d\u7f6e\u6587\u4ef6\u540e\uff0c\u53ef\u4ee5\u770b\u5230\u4e00\u4e9b\u9ed8\u8ba4\u89c4\u5219\u3002\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u9700\u8981\u6dfb\u52a0\u65b0\u89c4\u5219\u6765\u4fdd\u62a4\u670d\u52a1\u5668\u3002\u4ee5\u4e0b\u662f\u51e0\u4e2a\u5e38\u7528\u7684\u89c4\u5219\u793a\u4f8b\uff1a<\/p>\n<pre># \u5141\u8bb8SSH\u8bbf\u95ee\n-A INPUT -p tcp --dport 22 -j ACCEPT\n\n# \u5141\u8bb8HTTP\u8bbf\u95ee\n-A INPUT -p tcp --dport 80 -j ACCEPT\n\n# \u5141\u8bb8HTTPS\u8bbf\u95ee\n-A INPUT -p tcp --dport 443 -j ACCEPT\n\n# \u5141\u8bb8Ping\u8bbf\u95ee\n-A INPUT -p icmp -j ACCEPT\n\n# \u5176\u5b83\u89c4\u5219\uff08\u6839\u636e\u9700\u8981\u6dfb\u52a0\uff09<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>4\u3001\u5728\u6dfb\u52a0\u5b8c\u89c4\u5219\u540e\uff0c\u9700\u8981\u4fdd\u5b58\u5e76\u5173\u95ed\u6587\u4ef6\u3002\u4fdd\u5b58\u540e\uff0c\u91cd\u542fiptables\u670d\u52a1\u4f7f\u914d\u7f6e\u751f\u6548\uff1a<\/p>\n<pre>sudo systemctl restart iptables<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4e8c\u3001\u914d\u7f6e\u7f51\u5173\u9632\u706b\u5899\u76f8\u5173\u8bbe\u7f6e<\/p>\n<p>1\u3001\u4e3a\u4e86\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\uff0c\u6211\u4eec\u53ef\u4ee5\u7981\u7528\u4e00\u4e9b\u5371\u9669\u7684\u7f51\u7edc\u670d\u52a1\u3002\u5728CentOS\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u68c0\u67e5\u5e76\u5173\u95ed\u4e0d\u5fc5\u8981\u7684\u670d\u52a1\uff1a<\/p>\n<pre>sudo systemctl list-unit-files | grep enabled<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>2\u3001\u7981\u7528\u4e0d\u5fc5\u8981\u7684\u670d\u52a1\u540e\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u9650\u5236\u7f51\u7edc\u8fde\u63a5\u6570\u4ee5\u9632\u6b62\u88ab\u62d2\u7edd\u670d\u52a1\u653b\u51fb\uff08DDoS\uff09\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u9650\u5236\u6bcf\u4e2aIP\u5730\u5740\u6700\u5927\u8fde\u63a5\u6570\u7684\u89c4\u5219\u793a\u4f8b\uff1a<\/p>\n<pre># \u9650\u5236\u6bcf\u4e2aIP\u5730\u5740\u6700\u5927\u8fde\u63a5\u6570\u4e3a5\n-A INPUT -p tcp -m connlimit --connlimit-above 5 -j REJECT --reject-with tcp-reset<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4e09\u3001\u4f7f\u7528\u7aef\u53e3\u8f6c\u53d1\u4fdd\u62a4\u670d\u52a1\u5668<\/p>\n<p>1\u3001\u7aef\u53e3\u8f6c\u53d1\u662f\u4e00\u79cd\u5e38\u7528\u7684\u7f51\u7edc\u5b89\u5168\u6280\u672f\uff0c\u53ef\u4ee5\u5c06\u6765\u81ea\u5916\u90e8\u7f51\u7edc\u7684\u8bf7\u6c42\u8f6c\u53d1\u5230\u670d\u52a1\u5668\u7684\u6307\u5b9a\u7aef\u53e3\u4e0a\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5e38\u7528\u7684\u7aef\u53e3\u8f6c\u53d1\u89c4\u5219\u793a\u4f8b\uff1a<\/p>\n<pre># \u5c06\u5916\u90e8\u768480\u7aef\u53e3\u8bf7\u6c42\u8f6c\u53d1\u5230\u5185\u90e8\u670d\u52a1\u5668\u76848080\u7aef\u53e3\n-A PREROUTING -t nat -p tcp --dport 80 -j REDIRECT --to-port 8080<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>2\u3001\u5728\u914d\u7f6e\u5b8c\u7aef\u53e3\u8f6c\u53d1\u89c4\u5219\u540e\uff0c\u4fdd\u5b58\u5e76\u5173\u95ediptables\u914d\u7f6e\u6587\u4ef6\u3002\u91cd\u542fiptables\u670d\u52a1\u540e\uff0c\u7aef\u53e3\u8f6c\u53d1\u89c4\u5219\u5c06\u4f1a\u751f\u6548\u3002<\/p>\n<p>\u56db\u3001\u76d1\u63a7\u548c\u66f4\u65b0\u7f51\u5173\u9632\u706b\u5899\u89c4\u5219<\/p>\n<p>\u4e3a\u4e86\u4fdd\u8bc1\u670d\u52a1\u5668\u7684\u7f51\u7edc\u5b89\u5168\uff0c\u6211\u4eec\u9700\u8981\u5b9a\u671f\u76d1\u63a7\u548c\u66f4\u65b0\u7f51\u5173\u9632\u706b\u5899\u89c4\u5219\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u76d1\u63a7\u548c\u66f4\u65b0\u89c4\u5219\u7684\u65b9\u5f0f\uff1a<\/p>\n<p>1\u3001\u4f7f\u7528\u65e5\u5fd7\u5206\u6790\u5de5\u5177\uff0c\u5982fail2ban\u7b49\uff0c\u76d1\u63a7\u767b\u5f55\u5931\u8d25\u65e5\u5fd7\uff0c\u5e76\u81ea\u52a8\u5c4f\u853d\u6076\u610fIP\u5730\u5740\u3002<\/p>\n<p>2\u3001\u5b9a\u671f\u68c0\u67e5\u5e76\u5347\u7ea7\u670d\u52a1\u5668\u4e0a\u5b89\u88c5\u7684\u9632\u706b\u5899\u8f6f\u4ef6\u5305\uff0c\u4ee5\u83b7\u53d6\u6700\u65b0\u7684\u5b89\u5168\u8865\u4e01\u3002<\/p>\n<p>3\u3001\u5b9a\u671f\u8fdb\u884c\u5b89\u5168\u5ba1\u8ba1\uff0c\u53d1\u73b0\u548c\u4fee\u590d\u53ef\u80fd\u5b58\u5728\u7684\u5b89\u5168\u6f0f\u6d1e\u3002<\/p>\n<p>\u4e94\u3001\u603b\u7ed3<\/p>\n<p>\u901a\u8fc7\u4f7f\u7528\u7f51\u5173\u9632\u706b\u5899\uff0c\u6211\u4eec\u53ef\u4ee5\u6709\u6548\u5730\u4fdd\u62a4CentOS\u670d\u52a1\u5668\u7684\u7f51\u7edc\u5b89\u5168\u3002\u5408\u7406\u914d\u7f6e\u548c\u4f7f\u7528iptables\u89c4\u5219\u3001\u9650\u5236\u7f51\u7edc\u8fde\u63a5\u6570\u3001\u7aef\u53e3\u8f6c\u53d1\u7b49\u6280\u672f\u624b\u6bb5\uff0c\u53ef\u4ee5\u52a0\u5f3a\u670d\u52a1\u5668\u7684\u7f51\u7edc\u5b89\u5168\u6027\u3002\u4f46\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5b89\u5168\u5de5\u4f5c\u662f\u4e00\u4e2a\u6301\u7eed\u7684\u8fc7\u7a0b\uff0c\u6211\u4eec\u9700\u8981\u5b9a\u671f\u76d1\u63a7\u548c\u66f4\u65b0\u7f51\u5173\u9632\u706b\u5899\u89c4\u5219\uff0c\u4ece\u800c\u4fdd\u6301\u670d\u52a1\u5668\u7684\u7f51\u7edc\u5b89\u5168\u3002<\/p>\n<p>\u4ee5\u4e0a\u662f\u5982\u4f55\u4f7f\u7528\u7f51\u5173\u9632\u706b\u5899\u4fdd\u62a4centos\u670d\u52a1\u5668\u7684\u7f51\u7edc\u5b89\u5168\u7684\u8be6\u7ec6\u4ecb\u7ecd\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u4e8e\u670d\u52a1\u5668\u7ba1\u7406\u5458\u4eec\u7684\u7f51\u7edc\u5b89\u5168\u5de5\u4f5c\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f7f\u7528\u7f51\u5173\u9632\u706b\u5899\u4fdd\u62a4CentOS\u670d\u52a1\u5668\u7684\u7f51\u7edc\u5b89\u5168\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":"<p>\u5982\u4f55\u4f7f\u7528\u7f51\u5173\u9632\u706b\u5899\u4fdd\u62a4\u670d\u52a1\u5668\u7684\u7f51\u7edc\u5b89\u5168 \u5728\u5982\u4eca\u9ad8\u5ea6\u4e92\u8054\u7684\u7f51\u7edc\u73af\u5883\u4e0b\uff0c\u670d\u52a1\u5668\u7684\u7f51\u7edc\u5b89\u5168\u95ee\u9898\u53d8\u5f97\u5c24\u4e3a\u91cd\u8981\u3002\u4f5c\u4e3a\u4e00\u79cd\u5e38\u89c1\u800c\u4e14\u5f3a\u5927\u7684\u9632\u62a4\u63aa\u65bd\uff0c\u7f51\u5173\u9632\u706b\u5899\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u4fdd\u62a4CentOS\u670d\u52a1\u5668\u7684\u7f51\u7edc\u5b89\u5168\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u7f51\u5173\u9632\u706b\u5899\u6765\u4fdd\u62a4CentOS\u670d\u52a1\u5668\u3002 \u4e00\u3001\u5b89\u88c5\u548c\u914d\u7f6e\u7f51\u5173\u9632\u706b\u5899 1\u3001\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5b89\u88c5\u4e00\u4e2a\u7f51\u5173\u9632\u706b\u5899\u8f6f\u4ef6\u5305\u3002\u5728CentOS\u4e2d\uff0c\u5e38\u7528\u7684\u7f51\u5173\u9632\u706b\u5899\u8f6f\u4ef6\u5305\u662fiptables\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5b89\u88c5iptables\uff1a sudo yum install iptables \u767b\u5f55\u540e\u590d\u5236 2\u3001\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u6211\u4eec\u9700\u8981\u914d\u7f6eiptables\u89c4\u5219\u3002\u5728CentOS\u4e2d\uff0ciptables\u89c4\u5219\u4fdd\u5b58\u5728\/etc\/sysconfig\/iptables\u6587\u4ef6\u4e2d\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8fdb\u884c\u914d\u7f6e\uff1a sudo vi \/etc\/sysconfig\/iptables \u767b\u5f55\u540e\u590d\u5236 3\u3001\u6253\u5f00iptables\u914d\u7f6e\u6587\u4ef6\u540e\uff0c\u53ef\u4ee5\u770b\u5230\u4e00\u4e9b\u9ed8\u8ba4\u89c4\u5219\u3002\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u9700\u8981\u6dfb\u52a0\u65b0\u89c4\u5219\u6765\u4fdd\u62a4\u670d\u52a1\u5668\u3002\u4ee5\u4e0b\u662f\u51e0\u4e2a\u5e38\u7528\u7684\u89c4\u5219\u793a\u4f8b\uff1a # \u5141\u8bb8SSH\u8bbf\u95ee -A INPUT -p tcp &#8211;dport 22 -j ACCEPT # \u5141\u8bb8HTTP\u8bbf\u95ee -A INPUT -p tcp &#8211;dport 80 -j ACCEPT # \u5141\u8bb8HTTPS\u8bbf\u95ee -A INPUT -p tcp &#8211;dport 443 -j ACCEPT # \u5141\u8bb8Ping\u8bbf\u95ee -A INPUT -p icmp -j ACCEPT # \u5176\u5b83\u89c4\u5219\uff08\u6839\u636e\u9700\u8981\u6dfb\u52a0\uff09 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-15872","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/15872","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=15872"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/15872\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=15872"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=15872"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=15872"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}