proxy-for-webrtc

web videocall proxy代理服务器包括nginx服务器和turnserver中转服务器。下面依次介绍它们的部署流程。

1、nginx代理服务器

nginx是一个开源的第三方代理服务器，只需执行简单的安装命令即可。

（部署前要确保你申请了域名和证书）

centOS和Ubuntu下安装教程：https://jingyan.baidu.com/article/bad08e1ec2adc709c85121aa.html

安装完成之后，需要配置nginx的conf。具体步骤：

1.sudo vim /etc/nginx/nginx.conf 

2.在conf文件的http域中添加如下配置项：
    resolver 8.8.8.8;
    server {
            listen  80;
            listen  443;
            server_name <your dns>;
            ssl     on;
            ssl_certificate         <your certificate file absolute path>;
            ssl_certificate_key     <your certificate key file absolute path>;
            location /cs/ {
                    proxy_pass https://$arg_h:$arg_p/$arg_d;
            }
            location /rs/ {
                    proxy_pass https://$arg_h:$arg_p/$arg_d;
            }
            location /ws/ {
                    proxy_pass https://$arg_h:$arg_p;
                    proxy_http_version 1.1;
                    proxy_set_header Upgrade $http_upgrade;
                    proxy_set_header Connection "upgrade";
            }
    }
    
3.sudo nginx -s reload

2、turnserver部署

在turnserver运行包中有四个文件：README，turnserver（执行文件），turnserver.conf，turnserver.sh

README文件，详细指导运行turnserver的步骤：

#This is a guideline

#to show you how to run turnserver.

first. you need to set some parameters into turnserver.sh.

    extIP: external IP address
    udpport: the binding port of udp socket. default "3478"
    tcpport: the binding port of tcp socket. default "3433"
    realm: a symbol of your company. For example "agora.io"

then. you need to create some users and write them to turnserver.conf.

    the format in turnserver.conf is: 'username=key'.
    you can generate the key by 'echo -n "<username>:<realm>:<password>" | md5sum'.

finally. you can run the turnserver by turnserver.sh.

    usage: ./turnserver.sh [start/stop]