{"id":1408,"date":"2024-08-21T19:01:52","date_gmt":"2024-08-21T11:01:52","guid":{"rendered":"https:\/\/www.mailabc.cn\/blog\/?p=1408"},"modified":"2024-08-19T16:18:28","modified_gmt":"2024-08-19T08:18:28","slug":"mail-proxy-protocol","status":"publish","type":"post","link":"https:\/\/www.mailabc.cn\/blog\/2024\/08\/21\/mail-proxy-protocol\/","title":{"rendered":"\u90ae\u4ef6\u7cfb\u7edf\u5b9e\u73b0IP\u900f\u4f20\uff1aProxy Protocol\u65b9\u6848\uff08\u9002\u7528\u4e8eSMTP\/POP3\/IMAP\/HTTP\u534f\u8bae\uff09"},"content":{"rendered":"<h2>1. Proxy Protocol\u7b80\u4ecb<\/h2>\n<p>PROXY Protocol\u63d0\u4f9b\u4e86\u4e00\u79cd\u65b9\u4fbf\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5b89\u5168\u5730\u5728\u591a\u5c42 NAT \u6216 TCP \u4ee3\u7406\u4e4b\u95f4\u4f20\u8f93\u8fde\u63a5\u4fe1\u606f\uff0c\u5982\u5ba2\u6237\u7aef\u7684\u5730\u5740\u3002\u8be5\u534f\u8bae\u7684\u8bbe\u8ba1\u76ee\u7684\u662f\u5c3d\u91cf\u51cf\u5c11\u5bf9\u73b0\u6709\u7ec4\u4ef6\u7684\u66f4\u6539\uff0c\u5e76\u5c06\u4f20\u8f93\u4fe1\u606f\u7684\u5904\u7406\u5bf9\u6027\u80fd\u7684\u5f71\u54cd\u964d\u5230\u6700\u4f4e\u3002<\/p>\n<div>\n<div>HAProxy\u7684\u4f5c\u8005Willy Tarreau\u4e8e2010\u5e74\u5f00\u53d1\u548c\u8bbe\u8ba1\u7684\u4e00\u4e2aInternet\u534f\u8bae\uff0c\u901a\u8fc7\u4e3atcp\u6dfb\u52a0\u4e00\u4e2a\u5f88\u5c0f\u7684\u5934\u4fe1\u606f\uff0c\u6765\u65b9\u4fbf\u7684\u4f20\u9012\u5ba2\u6237\u7aef\u4fe1\u606f\uff08\u534f\u8bae\u6808\u3001\u6e90IP\u3001\u76ee\u7684IP\u3001\u6e90\u7aef\u53e3\u3001\u76ee\u7684\u7aef\u53e3\u7b49)\uff0c\u5728\u7f51\u7edc\u60c5\u51b5\u590d\u6742\u53c8\u9700\u8981\u83b7\u53d6\u7528\u6237\u771f\u5b9eIP\u65f6\u975e\u5e38\u6709\u7528\u3002\u5176\u672c\u8d28\u662f\u5728\u4e09\u6b21\u63e1\u624b\u7ed3\u675f\u540e\u7531\u4ee3\u7406\u5728\u8fde\u63a5\u4e2d\u63d2\u5165\u4e86\u4e00\u4e2a\u643a\u5e26\u4e86\u539f\u59cb\u8fde\u63a5\u56db\u5143\u7ec4\u4fe1\u606f\u7684\u6570\u636e\u5305\u3002<\/div>\n<div><\/div>\n<\/div>\n<div><a href=\"https:\/\/www.mailabc.cn\/blog\/wp-content\/uploads\/2024\/08\/2024081907501044.jpg\" rel=\"box\" class=\"fancybox\"><img class=\"aligncenter wp-image-1418 size-full\" data-original=\"https:\/\/www.mailabc.cn\/blog\/wp-content\/uploads\/2024\/08\/2024081907501044.jpg\"  alt=\"Proxy Protocol\" width=\"480\" height=\"439\" \/><\/a><\/div>\n<noscript><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-1418 size-full\" src=\"https:\/\/www.mailabc.cn\/blog\/wp-content\/uploads\/2024\/08\/2024081907501044.jpg\" alt=\"Proxy Protocol\" width=\"480\" height=\"439\" \/><\/a><\/div><\/noscript>\n<h2>2. Proxy Protocol\u7248\u672c<\/h2>\n<div>Proxy Protocol \u6709\u4e24\u4e2a\u7248\u672c\uff1a<\/div>\n<h3>2.1 Human-readable header format (Version 1)<\/h3>\n<div>V1\u7248\u672c\u91c7\u7528\u53ef\u9605\u8bfb\u7684\u62a5\u5934\u683c\u5f0f\uff0c\u6bcf\u4e2a\u5b57\u6bb5\u4e2d\u95f4\u4e3a\u7a7a\u683c(\\x20)\u3002<\/div>\n<div>\u683c\u5f0f\uff1a<\/div>\n<div>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">PROXY TCP4\/6 \u6e90IP\u5730\u5740 \u76ee\u6807IP\u5730\u5740 \u6e90\u7aef\u53e3 \u76ee\u6807\u7aef\u53e3\\r\\n<\/pre>\n<p>\u793a\u4f8b\uff1a<\/p>\n<\/div>\n<div>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/ PROXY AF L3_SADDR L3_DADDR L4_SADDR L4_DADDR\\r\\n \r\nPROXY TCP4 202.112.144.236 10.210.12.10 5678 80\\r\\n\r\nPROXY TCP6 2001:da8:205::100 2400:89c0:2110:1::21 6324 80\\r\\n\r\nPROXY UKNOWN\\r\\n<\/pre>\n<p>\u8be6\u7ec6\u8bf4\u660e\u53ef\u4ee5\u53c2\u8003\u5b98\u65b9\u6587\u6863\uff1a<a href=\"https:\/\/www.haproxy.org\/download\/1.8\/doc\/proxy-protocol.txt\" rel=\"nofollow noopener\" target=\"_blank\">The PROXY protocol Versions 1 &amp; 2<\/a><\/p>\n<h3>2.2 Binary header format (version 2)<\/h3>\n<p>V2\u7248\u672c\u91c7\u7528\u4e8c\u8fdb\u5236\u683c\u5f0f\uff0c\u517c\u5bb9V1\u7248\u672c\u3002\u5177\u4f53\u62a5\u5934\u683c\u5f0f\u53ef\u4ee5\u53c2\u8003\u5b98\u65b9\u6587\u6863\uff1a<a href=\"https:\/\/www.haproxy.org\/download\/1.8\/doc\/proxy-protocol.txt\" rel=\"nofollow noopener\" target=\"_blank\">The PROXY protocol Versions 1 &amp; 2<\/a><\/p>\n<\/div>\n<h2>3. SMTP\/POP3\/IMAP\u534f\u8bae\u5982\u4f55\u542f\u7528Proxy Protocol<\/h2>\n<p>\u5e76\u4e0d\u662f\u6240\u6709\u90ae\u4ef6\u7cfb\u7edf\u90fd\u652f\u6301Proxy Protocol\uff0c\u636e\u4e0d\u5b8c\u5168\u7edf\u8ba1\uff0c\u652f\u6301Proxy Protocol\u7684\u90ae\u4ef6\u7cfb\u7edf\u6216\u7ec4\u4ef6\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><a href=\"https:\/\/www.mailabc.cn\/blog\/2024\/07\/21\/%e5%bc%80%e6%ba%90%e9%82%ae%e7%ae%b1%e5%a5%97%e4%bb%b6%e4%bb%8b%e7%bb%8d%e7%b3%bb%e5%88%974%ef%bc%9apostfix\/\">Postfix<\/a><\/li>\n<li><a href=\"https:\/\/www.mailabc.cn\/blog\/2024\/07\/21\/%e5%bc%80%e6%ba%90%e9%82%ae%e7%ae%b1%e5%a5%97%e4%bb%b6%e4%bb%8b%e7%bb%8d%e7%b3%bb%e5%88%973%ef%bc%9adovecot\/\">Dovecot<\/a><\/li>\n<li>Exim<\/li>\n<li><a href=\"https:\/\/www.mailabc.cn\/blog\/2024\/05\/23\/%e8%87%aa%e5%bb%ba%e9%82%ae%e7%ae%b1%e5%93%81%e7%89%8c%e7%b3%bb%e5%88%97%e4%b8%89%ef%bc%9acoremail\/\">Coremail<\/a><\/li>\n<li>&#8230;<\/li>\n<\/ul>\n<p>\u4ee5Coremail\u4e3a\u4ee3\u8868\u7684\u56fd\u4ea7\u90ae\u4ef6\u7cfb\u7edf\u5df2\u7ecf\u652f\u6301Proxy Protocol\u534f\u8bae\uff0c\u76f8\u5173\u914d\u7f6e\u65b9\u6cd5\u53ef\u4ee5\u54a8\u8be2\u5b98\u65b9\u5ba2\u6237\u6216\u5173\u6ce8\u516c\u4f17\u53f7\u54a8\u8be2\u5c0f\u7f16\u3002\u5f00\u6e90\u90ae\u4ef6\u7cfb\u7edf\u53ef\u4ee5\u67e5\u9605\u5b98\u65b9\u6587\u6863\u4e86\u89e3\u542f\u7528Proxy Protocol\u65b9\u6cd5\u3002<\/p>\n<h2>4. \u8d1f\u8f7d\u5747\u8861\u5982\u4f55\u542f\u7528Proxy Protocol<\/h2>\n<h3>4.1. F5 BIG-IP\u8d1f\u8f7d\u5747\u8861<\/h3>\n<p>\u6dfb\u52a0 iRule\u811a\u672c\uff0c\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">when CLIENT_ACCEPTED { \r\n       set proxyheader \"PROXY TCP[IP::version][IP::remote_addr][IP::local_addr] [TCP::remote_port] [TCP::local_port]\\r\\n\" \r\n} \r\n\r\nwhen SERVER_CONNECTED { \r\n       TCP::respond $proxyheader \r\n}<\/pre>\n<h3>4.2 \u6df1\u4fe1\u670d\u8d1f\u8f7d\u5747\u8861<\/h3>\n<p>\u6dfb\u52a0IPro\u811a\u672c\uff0c\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">local proxyheader = nil\r\nevent CLIENT_ACCEPT {\r\n    proxyheader = 'PROXY TCP'..'4'..' '..TCP.remoteaddr()..' '..TCP.localaddr()..' '..TCP.remoteport()..' '..TCP.localport()..' \\r\\n'\r\n    TCP.release(0)\r\n}\r\nevent SERVER_CONNECTED {\r\n    TCP.respond(proxyheader)\r\n}<\/pre>\n<h3>4.3 Nginx\u8d1f\u8f7d\u5747\u8861<\/h3>\n<p>\u786e\u4fdd\u4f60\u7684 NGINX \u5b89\u88c5\u5305\u542b HTTP \u548c Stream Real-IP \u6a21\u5757\uff1a<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">nginx -V 2&gt;&amp;1 | grep -- 'http_realip_module'\r\nnginx -V 2&gt;&amp;1 | grep -- 'stream_realip_module'<\/pre>\n<p>\u5982\u679c\u901a\u8fc7Nginx\u53cd\u5411\u4ee3\u7406SMTP\u3001POP3\u3001IMAP\u534f\u8bae\uff0c\u9700\u8981\u5728stream\u4e2d\u542f\u7528proxy protocol\uff1a<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">stream {\r\n    server {\r\n        listen 25;\r\n        proxy_pass example.com:25;\r\n        proxy_protocol on;\r\n    }\r\n}<\/pre>\n<p>\u5982\u679c\u901a\u8fc7Nginx\u53cd\u5411\u4ee3\u7406HTTP\u534f\u8bae\uff0c\u9700\u8981\u5728server\u914d\u7f6e\u6bb5\u4e2d\u505a\u76f8\u5173\u914d\u7f6e\u3002\u5f53\u7136\uff0c\u4e5f\u53ef\u4ee5\u9009\u62e9\u901a\u8fc7X-FORWARDED-FOR\u505aIP\u900f\u4f20\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">http {\r\n    log_format combined '$proxy_protocol_addr - $remote_user [$time_local] '\r\n                        '\"$request\" $status $body_bytes_sent '\r\n                        '\"$http_referer\" \"$http_user_agent\"';\r\n    #...\r\n\r\n    server {\r\n        server_name localhost;\r\n\r\n        listen 80   proxy_protocol;\r\n        listen 443  ssl proxy_protocol;\r\n\r\n        ssl_certificate      \/etc\/nginx\/ssl\/public.example.com.pem;\r\n        ssl_certificate_key  \/etc\/nginx\/ssl\/public.example.com.key;\r\n\r\n        location \/app\/ {\r\n            proxy_pass       http:\/\/backend1;\r\n            proxy_set_header Host            $host;\r\n            proxy_set_header X-Real-IP       $proxy_protocol_addr;\r\n            proxy_set_header X-Forwarded-For $proxy_protocol_addr;\r\n        }\r\n    }\r\n}<\/pre>\n<p>\u5173\u4e8eNginx\u542f\u7528proxy protocol\u53ef\u4ee5\u53c2\u8003\u5b98\u65b9\u6587\u6863\uff1a<a href=\"https:\/\/docs.nginx.com\/nginx\/admin-guide\/load-balancer\/using-proxy-protocol\/\" rel=\"nofollow noopener\" target=\"_blank\">Accepting the PROXY Protocol | NGINX Documentation<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. Proxy Protocol\u7b80\u4ecb PROXY Protocol\u63d0\u4f9b\u4e86\u4e00\u79cd\u65b9\u4fbf\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5b89\u5168\u5730\u5728\u591a\u5c42 N [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1400,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[134],"class_list":["post-1408","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-20","tag-ip"],"_links":{"self":[{"href":"https:\/\/www.mailabc.cn\/blog\/wp-json\/wp\/v2\/posts\/1408","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mailabc.cn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.mailabc.cn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.mailabc.cn\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mailabc.cn\/blog\/wp-json\/wp\/v2\/comments?post=1408"}],"version-history":[{"count":8,"href":"https:\/\/www.mailabc.cn\/blog\/wp-json\/wp\/v2\/posts\/1408\/revisions"}],"predecessor-version":[{"id":1420,"href":"https:\/\/www.mailabc.cn\/blog\/wp-json\/wp\/v2\/posts\/1408\/revisions\/1420"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mailabc.cn\/blog\/wp-json\/wp\/v2\/media\/1400"}],"wp:attachment":[{"href":"https:\/\/www.mailabc.cn\/blog\/wp-json\/wp\/v2\/media?parent=1408"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mailabc.cn\/blog\/wp-json\/wp\/v2\/categories?post=1408"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mailabc.cn\/blog\/wp-json\/wp\/v2\/tags?post=1408"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}