{"id":50733,"date":"2024-10-08T13:21:14","date_gmt":"2024-10-08T05:21:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/50733\/"},"modified":"2024-10-08T13:21:14","modified_gmt":"2024-10-08T05:21:14","slug":"nginx-%e6%8c%87%e4%bb%a4%ef%bc%9alimit_conn-%ef%bc%88%e9%99%90%e5%88%b6%e9%80%a3%e6%8e%a5%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/50733\/","title":{"rendered":"Nginx \u6307\u4ee4\uff1alimit_conn \uff08\u9650\u5236\u9023\u63a5\uff09"},"content":{"rendered":"<h1 id=\"nginx-%e6%8c%87%e4%bb%a4%ef%bc%9alimit_conn-%ef%bc%88%e9%99%90%e5%88%b6%e9%80%a3%e6%8e%a5%ef%bc%89-TNwIgiVQWf\">Nginx \u6307\u4ee4\uff1alimit_conn \uff08\u9650\u5236\u9023\u63a5\uff09<\/h1>\n<p>Nginx \u662f\u4e00\u6b3e\u9ad8\u6548\u80fd\u7684\u7db2\u9801\u4f3a\u670d\u5668\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u7db2\u7ad9\u548c\u61c9\u7528\u7a0b\u5f0f\u4e2d\u3002\u5176\u9748\u6d3b\u7684\u914d\u7f6e\u9078\u9805\u4f7f\u5f97\u7528\u6236\u80fd\u5920\u6839\u64da\u9700\u6c42\u8abf\u6574\u4f3a\u670d\u5668\u7684\u884c\u70ba\u3002\u5176\u4e2d\uff0c<code>limit_conn<\/code> \u6307\u4ee4\u662f\u4e00\u500b\u91cd\u8981\u7684\u529f\u80fd\uff0c\u80fd\u5920\u6709\u6548\u5730\u9650\u5236\u540c\u6642\u9023\u63a5\u7684\u6578\u91cf\uff0c\u5f9e\u800c\u4fdd\u8b77\u4f3a\u670d\u5668\u514d\u53d7\u904e\u8f09\u548c\u653b\u64ca\u3002<\/p>\n<h2 id=\"limit_conn-%e6%8c%87%e4%bb%a4%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-TNwIgiVQWf\">limit_conn \u6307\u4ee4\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p><code>limit_conn<\/code> \u6307\u4ee4\u7684\u4e3b\u8981\u529f\u80fd\u662f\u9650\u5236\u67d0\u500b\u7279\u5b9a\u5340\u57df\u6216\u5ba2\u6236\u7aef\u7684\u540c\u6642\u9023\u63a5\u6578\u91cf\u3002\u9019\u5c0d\u65bc\u9632\u6b62\u67d0\u4e9b\u7528\u6236\u6216 IP \u5730\u5740\u904e\u5ea6\u6d88\u8017\u4f3a\u670d\u5668\u8cc7\u6e90\u81f3\u95dc\u91cd\u8981\u3002\u900f\u904e\u9019\u500b\u6307\u4ee4\uff0c\u7ba1\u7406\u54e1\u53ef\u4ee5\u8a2d\u5b9a\u6bcf\u500b\u5ba2\u6236\u7aef\u7684\u6700\u5927\u9023\u63a5\u6578\uff0c\u5f9e\u800c\u78ba\u4fdd\u4f3a\u670d\u5668\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u7528\u6027\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-limit_conn-%e7%9a%84%e5%a0%b4%e6%99%af-TNwIgiVQWf\">\u4f7f\u7528 limit_conn \u7684\u5834\u666f<\/h2>\n<ul>\n<li><strong>\u9632\u6b62 DDoS \u653b\u64ca\uff1a<\/strong>\u7576\u4f3a\u670d\u5668\u53d7\u5230\u5206\u6563\u5f0f\u62d2\u7d55\u670d\u52d9\u653b\u64ca\u6642\uff0c<code>limit_conn<\/code> \u53ef\u4ee5\u5e6b\u52a9\u9650\u5236\u6bcf\u500b IP \u7684\u9023\u63a5\u6578\uff0c\u6e1b\u5c11\u653b\u64ca\u7684\u5f71\u97ff\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u7ba1\u7406\uff1a<\/strong>\u5728\u9ad8\u6d41\u91cf\u7684\u7db2\u7ad9\u4e2d\uff0c\u9650\u5236\u6bcf\u500b\u7528\u6236\u7684\u9023\u63a5\u6578\u53ef\u4ee5\u78ba\u4fdd\u4f3a\u670d\u5668\u8cc7\u6e90\u7684\u516c\u5e73\u5206\u914d\u3002<\/li>\n<li><strong>\u63d0\u9ad8\u6027\u80fd\uff1a<\/strong>\u901a\u904e\u9650\u5236\u9023\u63a5\u6578\uff0c\u53ef\u4ee5\u6e1b\u5c11\u4f3a\u670d\u5668\u7684\u8ca0\u64d4\uff0c\u5f9e\u800c\u63d0\u9ad8\u6574\u9ad4\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"limit_conn-%e7%9a%84%e9%85%8d%e7%bd%ae%e7%a4%ba%e4%be%8b-TNwIgiVQWf\">limit_conn \u7684\u914d\u7f6e\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u57fa\u672c\u7684\u914d\u7f6e\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728 Nginx \u4e2d\u4f7f\u7528 <code>limit_conn<\/code> \u6307\u4ee4\uff1a<\/p>\n<pre><code>http {\n    # \u5b9a\u7fa9\u4e00\u500b\u5171\u4eab\u7684\u9023\u63a5\u9650\u5236\u5340\u57df\n    limit_conn_zone $binary_remote_addr zone=addr:10m;\n\n    server {\n        listen 80;\n        server_name example.com;\n\n        # \u9650\u5236\u6bcf\u500b IP \u5730\u5740\u7684\u6700\u5927\u9023\u63a5\u6578\u70ba 10\n        limit_conn addr 10;\n\n        location \/ {\n            # \u5176\u4ed6\u914d\u7f6e\n            proxy_pass http:\/\/backend;\n        }\n    }\n}<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u5b9a\u7fa9\u4e86\u4e00\u500b\u540d\u70ba <code>addr<\/code> \u7684\u5171\u4eab\u5340\u57df\uff0c\u4e26\u5c07\u5176\u5927\u5c0f\u8a2d\u7f6e\u70ba 10MB\u3002\u63a5\u8457\uff0c\u5728\u4f3a\u670d\u5668\u914d\u7f6e\u4e2d\uff0c\u6211\u5011\u4f7f\u7528 <code>limit_conn<\/code> \u6307\u4ee4\u9650\u5236\u6bcf\u500b IP \u5730\u5740\u7684\u6700\u5927\u9023\u63a5\u6578\u70ba 10\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e8%99%95%e7%90%86-TNwIgiVQWf\">\u932f\u8aa4\u8655\u7406<\/h2>\n<p>\u7576\u7528\u6236\u8d85\u904e\u8a2d\u5b9a\u7684\u9023\u63a5\u6578\u6642\uff0cNginx \u5c07\u8fd4\u56de\u4e00\u500b 503 \u932f\u8aa4\u3002\u9019\u610f\u5473\u8457\u4f3a\u670d\u5668\u76ee\u524d\u7121\u6cd5\u8655\u7406\u8acb\u6c42\uff0c\u901a\u5e38\u662f\u56e0\u70ba\u904e\u591a\u7684\u9023\u63a5\u3002\u70ba\u4e86\u6539\u5584\u7528\u6236\u9ad4\u9a57\uff0c\u53ef\u4ee5\u81ea\u5b9a\u7fa9\u932f\u8aa4\u9801\u9762\uff0c\u8b93\u7528\u6236\u4e86\u89e3\u554f\u984c\u6240\u5728\u3002<\/p>\n<pre><code>error_page 503 \/custom_503.html;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-TNwIgiVQWf\">\u7e3d\u7d50<\/h2>\n<p>\u4f7f\u7528 <code>limit_conn<\/code> \u6307\u4ee4\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u4f3a\u670d\u5668\u7684\u9023\u63a5\u6578\uff0c\u5f9e\u800c\u63d0\u9ad8\u4f3a\u670d\u5668\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u3002\u7121\u8ad6\u662f\u9632\u6b62 DDoS \u653b\u64ca\uff0c\u9084\u662f\u5408\u7406\u5206\u914d\u8cc7\u6e90\uff0c\u9019\u500b\u6307\u4ee4\u90fd\u80fd\u767c\u63ee\u91cd\u8981\u4f5c\u7528\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u548c\u7a69\u5b9a\u6027\u7684\u7db2\u7ad9\u4f86\u8aaa\uff0c\u5408\u7406\u914d\u7f6e <code>limit_conn<\/code> \u662f\u4e00\u500b\u4e0d\u53ef\u6216\u7f3a\u7684\u6b65\u9a5f\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u80fd\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f\u500b\u4eba\u7db2\u7ad9\u9084\u662f\u4f01\u696d\u61c9\u7528\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3 Nginx \u7684 limit_conn \u6307\u4ee4\uff0c\u5982\u4f55\u6709\u6548\u9650\u5236\u540c\u4e00 IP \u7684\u9023\u63a5\u6578\uff0c\u63d0\u5347\u4f3a\u670d\u5668\u6027\u80fd\u8207\u5b89\u5168\u6027\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-50733","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/50733","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=50733"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/50733\/revisions"}],"predecessor-version":[{"id":50734,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/50733\/revisions\/50734"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=50733"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=50733"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=50733"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}