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.patch ls /root/ngx_http_proxy_connect_module/patch proxy_connect_1014.patch proxy_connect_rewrite_1015.patch proxy_connect.patch proxy_connect_rewrite_1018.patch proxy_connect_rewrite_1014.patch proxy_connect_rewrite_102101.patch proxy_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.gz unzip ngx_http_proxy_connect_module-master.zip mv ngx_http_proxy_connect_module-master ngx_http_proxy_connect_module ls ngx_http_proxy_connect_module nginx-1.17.6 ngx_http_proxy_connect_module-master.zip nginx-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 ./configure make && 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nginx

useradd 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 OK HTTP/1.1 200 OK < Server: nginx/1.17.6 Server: nginx/1.17.6 < Date: Sun, 28 Aug 2022 02:05:33 GMT Date: Sun, 28 Aug 2022 02:05:33 GMT < Content-Type: text/html Content-Type: text/html < Content-Length: 277 Content-Length: 277 < Connection: keep-alive Connection: keep-alive < Accept-Ranges: bytes Accept-Ranges: bytes < Cache-Control: private, no-cache, no-store, proxy-revalidate, no-transform Cache-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 GMT Last-Modified: Mon, 13 Jun 2016 02:50:36 GMT < Pragma: no-cache Pragma: 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 Established HTTP/1.1 200 Connection Established < Proxy-agent: nginx Proxy-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 OK HTTP/1.1 200 OK < Accept-Ranges: bytes Accept-Ranges: bytes < Cache-Control: private, no-cache, no-store, proxy-revalidate, no-transform Cache-Control: private, no-cache, no-store, proxy-revalidate, no-transform < Connection: keep-alive Connection: keep-alive < Content-Length: 277 Content-Length: 277 < Content-Type: text/html Content-Type: text/html < Date: Sun, 28 Aug 2022 02:05:50 GMT Date: Sun, 28 Aug 2022 02:05:50 GMT < Etag: “575e1f7c-115” Etag: “575e1f7c-115” < Last-Modified: Mon, 13 Jun 2016 02:50:36 GMT Last-Modified: Mon, 13 Jun 2016 02:50:36 GMT < Pragma: no-cache Pragma: no-cache < Server: bfe/1.0.8.18 Server: bfe/1.0.8.18 < * Connection #0 to host 127.0.0.1 left intact