使用 Nginx 实现 TCP 反向代理 - 运维之美

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$ yum -y install proc* openssl* pcre*      
$ wget http://nginx.org/download/nginx-1.9.4.tar.gz      
$ tar zxvf nginx-1.9.4.tar.gz      
$ cd nginx-1.9.4      
$ ./configure  --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nginx --group=nginx --with-http_ssl_module --with-http_realip_module --with-http_addition_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_stub_status_module --with-http_auth_request_module --with-threads --with-stream --with-stream_ssl_module --with-mail --with-mail_ssl_module --with-file-aio --with-ipv6 --with-http_spdy_module --with-cc-opt='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic'      
$ make      
$ make install      

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$ mv nginx.conf{,.bak}      
$ vim  /etc/nginx/nginx.conf      
      
worker_processes auto;      
events {      
    worker_connections  1024;      
}      
error_log /var/log/nginx_error.log info;      
      
stream {      
    upstream mysqld {      
        hash $remote_addr consistent;      
        server 192.168.1.42:3306 weight=5 max_fails=1 fail_timeout=10s;      
        server 192.168.1.43:3306 weight=5 max_fails=1 fail_timeout=10s;      
    }      
      
    server {      
        listen 3306;      
        proxy_connect_timeout 1s;      
        proxy_timeout 3s;      
        proxy_pass mysqld;      
    }      
      
}      

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upstream ssh {      
        hash $remote_addr consistent;      
        server 192.168.1.42:22 weight=5;      
   }      
      
server {      
    listen 2222;      
    proxy_pass ssh;          
   }      

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worker_processes auto;      
error_log /var/log/nginx/error.log info;      
events {      
    worker_connections  1024;      
}      
      
stream {      
    upstream backend {      
        hash $remote_addr consistent;      
      
        server backend1.example.com:12345 weight=5;      
        server 127.0.0.1:12345            max_fails=3 fail_timeout=30s;      
        server unix:/tmp/backend3;      
    }      
      
    server {      
        listen 12345;      
        proxy_connect_timeout 1s;      
        proxy_timeout 3s;      
        proxy_pass backend;      
    }      
      
    server {      
        listen [::1]:12345;      
        proxy_pass unix:/tmp/stream.socket;      
    }      
}