基于nginx和tengine的tcp反向代理，负载均衡 安装和配置

先下载nginx_tcp_proxy_module模块。

1. wget https://github.com/yaoweibin/nginx_tcp_proxy_module/archive/master.zip

2. 先看看自己原来nginx安装有哪些模块（编译参数）：

   [root@111]# /tengine/sbin/nginx -V
   Tengine version: Tengine/2.1.1 (nginx/1.6.2)
   built by gcc 4.4.7 20120313 (Red Hat 4.4.7-16) (GCC) 
   TLS SNI support enabled

   configure arguments: –prefix=/tengine –user=www –group=www –with-pcre=../pcre –with-http_ssl_module –with-http_stub_status_module –with-openssl=../openssl –with-zlib=../zlib-1.2.8 –with-http_upstream_check_module –with-http_concat_module –with-syslog –with-backtrace_module –with-http_realip_module –add-module=../ngx_cache_purge –add-module=../ngx_http_accounting_module

3. 复制一下，进入到nginx的源码目录
4. patch -p1 < /path/to/nginx_tcp_proxy_module/tcp.patch
5. ./configure –prefix=/usr/local/nginx –user=www –group=www –with-pcre=../pcre –with-http_ssl_module –with-http_stub_status_module –with-openssl=../openssl –with-zlib=../zlib-1.2.8 –with-http_upstream_check_module –with-http_concat_module –with-syslog –with-backtrace_module –with-http_realip_module –add-module=../ngx_cache_purge –add-module=../ngx_http_accounting_module –add-module=/path/to/nginx_tcp_proxy_module
6. make
7. cp  objs/nginx /usr/local/nginx/sbin/nginx
8. 假定你有两个服务需要通过Nginx的Tcp（8888）端口进行负载均衡，参考如下配置：
   Shell代码  
   1. tcp {
   2. upstream cluster {
   3. # simple round-robin
   4. server 192.168.0.1:80;
   5. server 192.168.0.2:80;
   6. check interval=3000 rise=2 fall=5 timeout=1000 type=tcp;
   7. #check interval=3000 rise=2 fall=5 timeout=1000 type=ssl_hello;
   8. #check interval=3000 rise=2 fall=5 timeout=1000 type=http;
   9. #check_http_send “GET / HTTP/1.0\r\n\r\n”;
   10. #check_http_expect_alive http_2xx http_3xx;
   11. }
   12. server {
   13. listen 8888;
   14. proxy_pass cluster;
   15. }
   16. }

   /usr/local/nginx/sbin/nginx -s reload

9. /tengine/conf/tcp_proxy/socket.xxx.com

10. nginx.conf增加一条include tcp_proxy/*;

11. cat socket.xxx.com
12. tcp {
13. upstream socket_xxx_com {
14. server 1.1.1.1:8888;
15. check interval=3000 rise=2 fall=5 timeout=1000; #check interval=3000 rise=2 fall=5 timeout=1000 type=tcp;
16. }
17. server {
18. listen 8888;
19. proxy_pass socket_xxx_com;
20. }
21. }