{"id":211599,"date":"2023-12-22T10:39:25","date_gmt":"2023-12-22T02:39:25","guid":{"rendered":"https:\/\/www.idc.net\/help\/211599\/"},"modified":"2023-12-22T10:39:25","modified_gmt":"2023-12-22T02:39:25","slug":"linux-%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%ae%89%e5%85%a8%e7%ad%96%e7%95%a5%e6%8a%80%e5%b7%a7%ef%bc%9addos-%e4%bf%9d%e6%8a%a4","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/211599\/","title":{"rendered":"Linux \u670d\u52a1\u5668\u5b89\u5168\u7b56\u7565\u6280\u5de7\uff1aDDoS \u4fdd\u62a4"},"content":{"rendered":"<p><title id=\"linux-%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%ae%89%e5%85%a8%e7%ad%96%e7%95%a5%e6%8a%80%e5%b7%a7%ef%bc%9addos-%e4%bf%9d%e6%8a%a4-QZnXkMEXMY\">Linux \u670d\u52a1\u5668\u5b89\u5168\u7b56\u7565\u6280\u5de7\uff1aDDoS \u4fdd\u62a4<\/title><\/p>\n<h1 id=\"linux-%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%ae%89%e5%85%a8%e7%ad%96%e7%95%a5%e6%8a%80%e5%b7%a7%ef%bc%9addos-%e4%bf%9d%e6%8a%a4-QZnXkMEXMY\">Linux \u670d\u52a1\u5668\u5b89\u5168\u7b56\u7565\u6280\u5de7\uff1aDDoS \u4fdd\u62a4<\/h1>\n<h2 id=\"%e4%bb%80%e4%b9%88%e6%98%af-ddos-%e6%94%bb%e5%87%bb%ef%bc%9f-QZnXkMEXMY\">\u4ec0\u4e48\u662f DDoS \u653b\u51fb\uff1f<\/h2>\n<p>\u5206\u5e03\u5f0f\u62d2\u7edd\u670d\u52a1\uff08DDoS\uff09\u653b\u51fb\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u7f51\u7edc\u653b\u51fb\u65b9\u5f0f\uff0c\u65e8\u5728\u901a\u8fc7\u540c\u65f6\u5411\u76ee\u6807\u670d\u52a1\u5668\u53d1\u9001\u5927\u91cf\u8bf7\u6c42\u6765\u4f7f\u5176\u8d85\u8d1f\u8377\u8fd0\u884c\uff0c\u4ece\u800c\u5bfc\u81f4\u670d\u52a1\u4e0d\u53ef\u7528\u3002\u653b\u51fb\u8005\u901a\u5e38\u4f7f\u7528\u591a\u4e2a\u8ba1\u7b97\u673a\u6216\u8bbe\u5907\u6765\u53d1\u8d77\u653b\u51fb\uff0c\u4f7f\u5176\u66f4\u96be\u4ee5\u963b\u6b62\u3002<\/p>\n<h2 id=\"ddos-%e6%94%bb%e5%87%bb%e5%af%b9%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%9a%84%e5%bd%b1%e5%93%8d-QZnXkMEXMY\">DDoS \u653b\u51fb\u5bf9\u670d\u52a1\u5668\u7684\u5f71\u54cd<\/h2>\n<p>DDoS \u653b\u51fb\u53ef\u4ee5\u5bf9\u670d\u52a1\u5668\u9020\u6210\u4e25\u91cd\u5f71\u54cd\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u7f51\u7edc\u5e26\u5bbd\u6d88\u8017\uff1a\u653b\u51fb\u8005\u53d1\u9001\u5927\u91cf\u8bf7\u6c42\uff0c\u5360\u7528\u670d\u52a1\u5668\u7684\u7f51\u7edc\u5e26\u5bbd\uff0c\u5bfc\u81f4\u5408\u6cd5\u7528\u6237\u65e0\u6cd5\u8bbf\u95ee\u3002<\/li>\n<li>CPU \u548c\u5185\u5b58\u6d88\u8017\uff1a\u670d\u52a1\u5668\u9700\u8981\u5904\u7406\u5927\u91cf\u8bf7\u6c42\uff0c\u5bfc\u81f4 CPU \u548c\u5185\u5b58\u8d44\u6e90\u8017\u5c3d\uff0c\u4f7f\u670d\u52a1\u5668\u65e0\u6cd5\u6b63\u5e38\u5de5\u4f5c\u3002<\/li>\n<li>\u670d\u52a1\u4e0d\u53ef\u7528\uff1a\u7531\u4e8e\u670d\u52a1\u5668\u8d85\u8d1f\u8377\u8fd0\u884c\uff0c\u65e0\u6cd5\u5904\u7406\u6b63\u5e38\u7684\u7528\u6237\u8bf7\u6c42\uff0c\u5bfc\u81f4\u670d\u52a1\u4e0d\u53ef\u7528\u3002<\/li>\n<\/ul>\n<h2 id=\"linux-%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%9a%84-ddos-%e4%bf%9d%e6%8a%a4%e7%ad%96%e7%95%a5-QZnXkMEXMY\">Linux \u670d\u52a1\u5668\u7684 DDoS \u4fdd\u62a4\u7b56\u7565<\/h2>\n<p>\u4e3a\u4e86\u4fdd\u62a4 Linux \u670d\u52a1\u5668\u514d\u53d7 DDoS \u653b\u51fb\uff0c\u53ef\u4ee5\u91c7\u53d6\u4ee5\u4e0b\u7b56\u7565\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e9%98%b2%e7%81%ab%e5%a2%99-QZnXkMEXMY\">1. \u4f7f\u7528\u9632\u706b\u5899<\/h3>\n<p>\u914d\u7f6e\u9632\u706b\u5899\u89c4\u5219\u4ee5\u9650\u5236\u5bf9\u670d\u52a1\u5668\u7684\u8bbf\u95ee\u3002\u53ef\u4ee5\u4f7f\u7528 iptables \u6216 firewalld \u7b49\u5de5\u5177\u6765\u8bbe\u7f6e\u89c4\u5219\uff0c\u4f8b\u5982\u9650\u5236\u7279\u5b9a IP \u5730\u5740\u7684\u8bbf\u95ee\u9891\u7387\u6216\u5c01\u9501\u5f02\u5e38\u6d41\u91cf\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e5%8f%8d%e5%90%91%e4%bb%a3%e7%90%86-QZnXkMEXMY\">2. \u4f7f\u7528\u53cd\u5411\u4ee3\u7406<\/h3>\n<p>\u901a\u8fc7\u4f7f\u7528\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668\uff0c\u53ef\u4ee5\u5c06\u6d41\u91cf\u5206\u53d1\u5230\u591a\u4e2a\u540e\u7aef\u670d\u52a1\u5668\u4e0a\uff0c\u4ece\u800c\u5206\u6563 DDoS \u653b\u51fb\u7684\u5f71\u54cd\u3002\u5e38\u89c1\u7684\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668\u5305\u62ec Nginx \u548c HAProxy\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e8%b4%9f%e8%bd%bd%e5%9d%87%e8%a1%a1-QZnXkMEXMY\">3. \u4f7f\u7528\u8d1f\u8f7d\u5747\u8861<\/h3>\n<p>\u4f7f\u7528\u8d1f\u8f7d\u5747\u8861\u5668\u53ef\u4ee5\u5c06\u6d41\u91cf\u5206\u53d1\u5230\u591a\u4e2a\u670d\u52a1\u5668\u4e0a\uff0c\u4ece\u800c\u51cf\u8f7b\u5355\u4e2a\u670d\u52a1\u5668\u7684\u8d1f\u8f7d\u3002\u8fd9\u6837\uff0c\u5373\u4f7f\u67d0\u4e2a\u670d\u52a1\u5668\u53d7\u5230 DDoS \u653b\u51fb\uff0c\u5176\u4ed6\u670d\u52a1\u5668\u4ecd\u7136\u53ef\u4ee5\u6b63\u5e38\u5de5\u4f5c\u3002<\/p>\n<h3 id=\"4-%e5%90%af%e7%94%a8-syn-cookies-QZnXkMEXMY\">4. \u542f\u7528 SYN Cookies<\/h3>\n<p>SYN Cookies \u662f\u4e00\u79cd\u9632\u6b62 SYN Flood \u653b\u51fb\u7684\u6280\u672f\u3002\u542f\u7528 SYN Cookies \u53ef\u4ee5\u9632\u6b62\u653b\u51fb\u8005\u901a\u8fc7\u53d1\u9001\u5927\u91cf\u4f2a\u9020\u7684 TCP \u8fde\u63a5\u8bf7\u6c42\u6765\u6d88\u8017\u670d\u52a1\u5668\u8d44\u6e90\u3002<\/p>\n<h3 id=\"5-%e4%bd%bf%e7%94%a8-ids-ips-QZnXkMEXMY\">5. \u4f7f\u7528 IDS\/IPS<\/h3>\n<p>\u5165\u4fb5\u68c0\u6d4b\u7cfb\u7edf\uff08IDS\uff09\u548c\u5165\u4fb5\u9632\u5fa1\u7cfb\u7edf\uff08IPS\uff09\u53ef\u4ee5\u5e2e\u52a9\u68c0\u6d4b\u548c\u963b\u6b62 DDoS \u653b\u51fb\u3002\u5b83\u4eec\u53ef\u4ee5\u5206\u6790\u6d41\u91cf\u5e76\u8bc6\u522b\u5f02\u5e38\u884c\u4e3a\uff0c\u7136\u540e\u91c7\u53d6\u76f8\u5e94\u7684\u63aa\u65bd\u6765\u4fdd\u62a4\u670d\u52a1\u5668\u3002<\/p>\n<h3 id=\"6-%e9%99%90%e5%88%b6%e8%bf%9e%e6%8e%a5%e6%95%b0-QZnXkMEXMY\">6. \u9650\u5236\u8fde\u63a5\u6570<\/h3>\n<p>\u901a\u8fc7\u9650\u5236\u6bcf\u4e2a IP \u5730\u5740\u7684\u6700\u5927\u8fde\u63a5\u6570\uff0c\u53ef\u4ee5\u9632\u6b62\u5355\u4e2a IP \u5730\u5740\u5360\u7528\u8fc7\u591a\u7684\u670d\u52a1\u5668\u8d44\u6e90\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u4fee\u6539\u670d\u52a1\u5668\u7684\u7f51\u7edc\u914d\u7f6e\u6587\u4ef6\u6765\u5b9e\u73b0\u3002<\/p>\n<h2 id=\"%e6%80%bb%e7%bb%93-QZnXkMEXMY\">\u603b\u7ed3<\/h2>\n<p>\u4fdd\u62a4 Linux \u670d\u52a1\u5668\u514d\u53d7 DDoS \u653b\u51fb\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002\u901a\u8fc7\u4f7f\u7528\u9632\u706b\u5899\u3001\u53cd\u5411\u4ee3\u7406\u3001\u8d1f\u8f7d\u5747\u8861\u3001\u542f\u7528 SYN Cookies\u3001IDS\/IPS \u548c\u9650\u5236\u8fde\u63a5\u6570\u7b49\u7b56\u7565\uff0c\u53ef\u4ee5\u6709\u6548\u51cf\u8f7b DDoS \u653b\u51fb\u5bf9\u670d\u52a1\u5668\u7684\u5f71\u54cd\uff0c\u786e\u4fdd\u670d\u52a1\u5668\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u7528\u6027\u3002<\/p>\n<h2 id=\"%e9%a6%99%e6%b8%af%e6%9c%8d%e5%8a%a1%e5%99%a8%e9%a6%96%e9%80%89%e5%90%8e%e6%b5%aa%e4%ba%91-QZnXkMEXMY\">\u9999\u6e2f\u670d\u52a1\u5668\u9996\u9009\u540e\u6d6a\u4e91<\/h2>\n<p>\u540e\u6d6a\u4e91\u63d0\u4f9b\u9ad8\u6027\u80fd\u7684\u9999\u6e2f\u670d\u52a1\u5668\uff0c\u4e3a\u7528\u6237\u63d0\u4f9b\u7a33\u5b9a\u53ef\u9760\u7684\u4e91\u8ba1\u7b97\u670d\u52a1\u3002\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u8bbf\u95ee<a href=\"https:\/\/idc.net\">\u540e\u6d6a\u4e91\u5b98\u7f51<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linux \u670d\u52a1\u5668\u5b89\u5168\u7b56\u7565\u6280\u5de7\uff1aDDoS \u4fdd\u62a4 Linux \u670d\u52a1\u5668\u5b89\u5168\u7b56\u7565\u6280\u5de7\uff1aDDoS \u4fdd\u62a4 \u4ec0\u4e48\u662f DDo [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27],"tags":[],"class_list":["post-211599","post","type-post","status-publish","format-standard","hentry","category-centos"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/211599","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=211599"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/211599\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=211599"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=211599"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=211599"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}