nginx正向代理http和https的实现步骤

目录配置准备nginx版本和正向代理https的模块的对应关系配置nginx正向代理解压nginx，解压模块并重命名安装nginx使用正向代理https的模块配置正向代理创建nginx用户，用来运行nginx验证正向代理配置准备

正向代理，指的是通过代理服务器 代理浏览器/客户端去重定向请求访问到目标服务器 的一种代理服务。正向代理服务的特点是代理服务器 代理的对象是浏览器/客户端，也就是对于目标服务器 来说浏览器/客户端是隐藏的。

nginx默认支持正向代理http，不支持https

nginx官方并不支持直接转发https请求，nginx支持https需要ngx_http_proxy_connect_module模块。github上开源了模块 https://github.com/chobits/ngx_http_proxy_connect_module。不过维护的ngx_http_proxy_connect_module模块的补丁也是有nginx版本限制的（目前维护了1.4.x~1.19.x版本）可以在REDEME.md的Select patch中查看nginx版本和模块的对应关系

nginx版本和正向代理https的模块的对应关系nginx versionenable REWRITE phasepatch1.4.x ~ 1.12.xNOproxy_connect.patch1.4.x ~ 1.12.xYESproxy_connect_rewrite.patch1.13.x ~ 1.14.xNOproxy_connect_1014.patch1.13.x ~ 1.14.xYESproxy_connect_rewrite_1014.patch1.15.2YESproxy_connect_rewrite_1015.patch1.15.4 ~ 1.16.xYESproxy_connect_rewrite_101504.patch1.17.x ~ 1.18.0YESproxy_connect_rewrite_1018.patch1.19.x ~ 1.21.0YESproxy_connect_rewrite_1018.patch1.21.1 ~ 1.22.0YESproxy_connect_rewrite_102101.patchls /root/ngx_http_proxy_connect_module/patchproxy_connect_1014.patch proxy_connect_rewrite_1015.patchproxy_connect.patch proxy_connect_rewrite_1018.patchproxy_connect_rewrite_1014.patch proxy_connect_rewrite_102101.patchproxy_connect_rewrite_101504.patch proxy_connect_rewrite.patch

github上开源了模块 https://github.com/chobits/ngx_http_proxy_connect_module

此处用的是nginx-1.17.6，对应proxy_connect_rewrite_1018.patch

配置nginx正向代理

下载后上传到服务器

ls ngx_http_proxy_connect_module-master.zip nginx-1.17.6.tar.gz解压nginx，解压模块并重命名tar xf nginx-1.17.6.tar.gzunzip ngx_http_proxy_connect_module-master.zipmv ngx_http_proxy_connect_module-master ngx_http_proxy_connect_modulels ngx_http_proxy_connect_module nginx-1.17.6 ngx_http_proxy_connect_module-master.zipnginx-1.17.6.tar.gz安装nginx

安装源码编译工具包，nginx依赖包

yum -y install make gcc openssl openssl-devel pcre-devel zlib zlib-devel

进入nginx解压后的目录

cd nginx-1.17.6 ./configuremake && make install使用正向代理https的模块

查看nginx-1.17.6对应的https模块的具体位置

ls /root/ngx_http_proxy_connect_module/patch/proxy_connect_rewrite_1018.patch

导入模块，再次编译安装

patch -p1 < /root/ngx_http_proxy_connect_module/patch/proxy_connect_rewrite_1018.patch./configure --add-module=/root/ngx_http_proxy_connect_module make && make install配置正向代理

nginx默认安装在/usr/local/nginx/

cd /usr/local/nginx/

修改配置文件

vim conf/nginx.conf

在 #gzip on; 下添加配置

#正向代理转发http请求server { #指定DNS服务器IP地址 resolver 114.114.114.114; #监听80端口，http默认端口80 listen 80; #服务器IP或域名server_name localhost; #正向代理转发http请求 location / {proxy_pass http://$host$request_uri;proxy_set_header HOST $host;proxy_buffers 256 4k;proxy_max_temp_file_size 0k;proxy_connect_timeout 30;proxy_send_timeout 60;proxy_read_timeout 60;proxy_next_upstream error timeout invalid_header http_502; }}#正向代理转发https请求server { #指定DNS服务器IP地址 resolver 114.114.114.114; #监听443端口，https默认端口443 listen 443; #正向代理转发https请求 proxy_connect; proxy_connect_allow 443 563; proxy_connect_connect_timeout 10s; proxy_connect_read_timeout 10s; proxy_connect_send_timeout 10s; location / {proxy_pass http://$host;proxy_set_header Host $host; }}

检查配置文件是否有错误sbin/nginx -t

创建nginx用户，用来运行nginxuseradd nginx

启动服务

sbin/nginx验证正向代理 curl -I http://www.baidu.com/ -v -x 127.0.0.1:80 curl -I https://www.baidu.com/ -v -x 127.0.0.1:443

验证正向代理http 200 ok

curl -I http://www.baidu.com/ -v -x 127.0.0.1:80* About to connect() to proxy 127.0.0.1 port 80 (#0)*   Trying 127.0.0.1...* Connected to 127.0.0.1 (127.0.0.1) port 80 (#0)> HEAD http://www.baidu.com/ HTTP/1.1> User-Agent: curl/7.29.0> Host: www.baidu.com> Accept: */*> Proxy-Connection: Keep-Alive>< HTTP/1.1 200 OKHTTP/1.1 200 OK< Server: nginx/1.17.6Server: nginx/1.17.6< Date: Sun, 28 Aug 2022 02:05:33 GMTDate: Sun, 28 Aug 2022 02:05:33 GMT< Content-Type: text/htmlContent-Type: text/html< Content-Length: 277Content-Length: 277< Connection: keep-aliveConnection: keep-alive< Accept-Ranges: bytesAccept-Ranges: bytes< Cache-Control: private, no-cache, no-store, proxy-revalidate, no-transformCache-Control: private, no-cache, no-store, proxy-revalidate, no-transform< Etag: '575e1f7c-115'Etag: '575e1f7c-115'< Last-Modified: Mon, 13 Jun 2016 02:50:36 GMTLast-Modified: Mon, 13 Jun 2016 02:50:36 GMT< Pragma: no-cachePragma: no-cache<* Connection #0 to host 127.0.0.1 left intact

验证正向代理https 200 ok

curl -I https://www.baidu.com/ -v -x 127.0.0.1:443* About to connect() to proxy 127.0.0.1 port 443 (#0)*   Trying 127.0.0.1...* Connected to 127.0.0.1 (127.0.0.1) port 443 (#0)* Establish HTTP proxy tunnel to www.baidu.com:443> CONNECT www.baidu.com:443 HTTP/1.1> Host: www.baidu.com:443> User-Agent: curl/7.29.0> Proxy-Connection: Keep-Alive>< HTTP/1.1 200 Connection EstablishedHTTP/1.1 200 Connection Established< Proxy-agent: nginxProxy-agent: nginx<* Proxy replied OK to CONNECT request* Initializing NSS with certpath: sql:/etc/pki/nssdb*   CAfile: /etc/pki/tls/certs/ca-bundle.crt  CApath: none* SSL connection using TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256* Server certificate:*       subject: CN=baidu.com,O='Beijing Baidu Netcom Science Technology Co., Ltd',OU=service operation department,L=beijing,ST=beijing,C=CN*       start date: 7月 05 05:16:02 2022 GMT*       expire date: 8月 06 05:16:01 2023 GMT*       common name: baidu.com*       issuer: CN=GlobalSign RSA OV SSL CA 2018,O=GlobalSign nv-sa,C=BE> HEAD / HTTP/1.1> User-Agent: curl/7.29.0> Host: www.baidu.com> Accept: */*>< HTTP/1.1 200 OKHTTP/1.1 200 OK< Accept-Ranges: bytesAccept-Ranges: bytes< Cache-Control: private, no-cache, no-store, proxy-revalidate, no-transformCache-Control: private, no-cache, no-store, proxy-revalidate, no-transform< Connection: keep-aliveConnection: keep-alive< Content-Length: 277Content-Length: 277< Content-Type: text/htmlContent-Type: text/html< Date: Sun, 28 Aug 2022 02:05:50 GMTDate: Sun, 28 Aug 2022 02:05:50 GMT< Etag: '575e1f7c-115'Etag: '575e1f7c-115'< Last-Modified: Mon, 13 Jun 2016 02:50:36 GMTLast-Modified: Mon, 13 Jun 2016 02:50:36 GMT< Pragma: no-cachePragma: no-cache< Server: bfe/1.0.8.18Server: bfe/1.0.8.18<* Connection #0 to host 127.0.0.1 left intact

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