NGINX 实现TCP反向代理

目录

• 1. 查看NGINX 编译参数
• 2. 修改NGINX配置文件
• 3. 完整配置文件
• 4. 自动安装NGINX脚本
• 5. 参考

• Nginx 从1.9.0开始发布ngx_stream_core_module模块，该模块支持tcp代理及负载均衡

1. 查看NGINX 编译参数

nginx -V

• 如果编译参数中有--with-stream，说明nginx服务器已经满足要求
• 如果没有，可以参考NGINX 平滑升级，对NGINX进行重新编译或升级

2. 修改NGINX配置文件

vim /usr/local/nginx/conf/nginx.conf

stream 
{
    upstream server_upstreams {
        server server1.bobobk.com:443;
        server server3.bobobk.com:443;
    }
    #将8080端口转发到server3.bobobk.com的443端口
    #将udp 8080端口转发到server3.bobobk.com 443端口
    server {
        listen 8080;
        listen 8080 udp;
        proxy_pass server_upstreams;
    }
}

• stream反向代理模块与http是同级，不要把配置写入了http里面
• 配置文件中upstream server_upstreams 是用来负载均衡，会从不同服务器选择最佳服务器
• proxy_pass表示转发请求到服务器

3. 完整配置文件

#/usr/local/nginx/conf/nginx.conf
user  www www;

worker_processes auto;
worker_cpu_affinity auto;

error_log  /home/wwwlogs/nginx_error.log  crit;

pid        /usr/local/nginx/logs/nginx.pid;

#Specifies the value for maximum file descriptors that can be opened by this process.
worker_rlimit_nofile 51200;

events
{
    use epoll;
    worker_connections 51200;
    multi_accept off;
    accept_mutex off;
}
stream 
{
    upstream server_upstreams {
        server server1.bobobk.com:443;
        server server3.bobobk.com:443;
    }
    #将8080端口转发到server3.bobobk.com的443端口
    #将udp 8080端口转发到server3.bobobk.com 443端口
    server {
        listen 8080;
        listen 8080 udp;
        proxy_pass server_upstreams;
    }
}
http
{
    include       mime.types;
    default_type  application/octet-stream;

    server_names_hash_bucket_size 128;
    client_header_buffer_size 32k;
    large_client_header_buffers 4 32k;
    client_max_body_size 50m;

    sendfile on;
    sendfile_max_chunk 512k;
    tcp_nopush on;

    keepalive_timeout 60;

    tcp_nodelay on;

    fastcgi_connect_timeout 300;
    fastcgi_send_timeout 300;
    fastcgi_read_timeout 300;
    fastcgi_buffer_size 64k;
    fastcgi_buffers 4 64k;
    fastcgi_busy_buffers_size 128k;
    fastcgi_temp_file_write_size 256k;

    gzip on;
    gzip_min_length  1k;
    gzip_buffers     4 16k;
    gzip_http_version 1.1;
    gzip_comp_level 2;
    gzip_types     text/plain application/javascript application/x-javascript text/javascript text/css application/xml application/xml+rss;
    gzip_vary on;
    gzip_proxied   expired no-cache no-store private auth;
    gzip_disable   "MSIE [1-6].";

    #limit_conn_zone $binary_remote_addr zone=perip:10m;
    ##If enable limit_conn_zone,add "limit_conn perip 10;" to server section.

    server_tokens off;

    server
    {
        listen 80 default_server reuseport;
        listen [::]:80 default_server ipv6only=on;
        server_name _;
        index index.html index.htm index.php;
        root  /www/wwwroot/default;

        #error_page   404   /404.html;

        # Deny access to PHP files in specific directory
        #location ~ /(wp-content|uploads|wp-includes|images)/.*.php$ { deny all; }

        include enable-php.conf;

        location /nginx_status
        {
            stub_status on;
            access_log   off;
        }

        location ~ .*.(gif|jpg|jpeg|png|bmp|swf)$
        {
            expires      30d;
        }
        location ~ .*.(js|css)?$
        {
            expires      12h;
        }

        location ~ /.well-known {
            allow all;
        }
    }

    include vhost/*.conf;
}

4. 自动安装NGINX脚本

wget https://raw.githubusercontent.com/helloxz/nginx-cdn/master/nginx.sh && bash nginx.sh
source /etc/profile

5. 参考

• nginx反向代理tcp/udp请求实现映射远端服务器
• 使用 Nginx 实现 TCP 反向代理