nginx 多级7层代理安装配置

编译安装

yum install zlib-devel -y

wget https://nginx.org/download/nginx-1.15.12.tar.gz

tar -zxf nginx-1.15.12.tar.gz

./configure --with-stream --prefix=/usr/local/nginx-1.15.12

make && make install

cd /usr/local/ && ln -s nginx-1.15.12 nginx

启动脚本

cat > /etc/systemd/system/nginx.service <<EOF
[Unit]
Description=nginx proxy
After=network.target
After=network-online.target
Wants=network-online.target

[Service]
Type=forking
ExecStartPre=/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf -p /usr/local/nginx -t
ExecStart=/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf -p /usr/local/nginx
ExecReload=/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf -p /usr/local/nginx -s reload
PrivateTmp=true
Restart=always
RestartSec=5
StartLimitInterval=0
LimitNOFILE=65536

[Install]
WantedBy=multi-user.target
EOF

配置文件

[root@wsjy-proxy01 conf]# cat nginx.conf
worker_processes 1;

events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    sendfile        on;
    keepalive_timeout  65;
    
    upstream wsjy-proxy {
        hash $remote_addr consistent;
        server 10.101.99.121:30080;
        server 10.101.99.122:30080;
        server 10.101.99.123:30080;
    }


    server {
        listen       80;
        location / {
          proxy_set_header X-Real-IP $remote_addr;
          proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
          proxy_pass http://wsjy-proxy;
          proxy_set_header Host $http_host;
          proxy_set_header Connection close;
          proxy_redirect  off;
        }
        access_log  logs/http-proxy-80.log  main;

        }
   
}

多级代理配置

重点需将 http_host 变量传递至后端，否则可能到第二级代理会找不到资源。

proxy_set_header Host $http_host;

proxy_set_header Connection close;