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nginx tcp转发

 2 years ago
source link: http://blog.ilibrary.me/2021/11/27/nginx-tcp%E8%BD%AC%E5%8F%91
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nginx tcp转发
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nginx支持tcp的转发，是通过stream模块转发，不是通过http模块转发。

  1. 不支持server_name, 也就是不支持通过不同的域名来把同一端口的连接转发给不同的服务.
  2. 可以通过upstream server来做负载均衡.
  3. 最新的nginx docker(1.21)是默认开启了--with-stream编译参数的，开箱即用, 可以通过nginx -V查看是否带有--with-stream
  4. 支持ssl证书. 具体配置可以参考文末链接。
  5. 配置都要放到nginx.conf，千万别放到sites-available这种地方，不然就会进入到http部分.
  1. 在nginx.conf末尾添加下面内容: 
    	# tcp/ip proxy,
 # 加载tcp.d目录下面的配置，实现tcp/UDP端口转发,
 include /etc/nginx/tcp.d/*.conf;
  2. 添加tcp.conf的配置到/etc/nginx/tcp.d/目录: 
     # https://blog.51cto.com/moerjinrong/2287680
 stream {
     upstream xy_tcp {
         hash $remote_addr consistent;
         server xy-tcp:55000 max_fails=3 fail_timeout=10s;

     }
     server {
         listen 55000;

         # "server_name" directive is not allowed here
         # server_name xxx.com;
         proxy_connect_timeout 20s;
         proxy_timeout 5m;
         proxy_pass xy_tcp;
     }
 }
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