参考

1、服务端安装

1.1、必要条件

（1）服务器，用来搭建ngrok的服务器，必须有公网ip，并且可以正常访问（本次测试使用的是Ubuntu 16.04 64位）。
（2）域名，用来生成访问域名。

1.2、安装工具和依赖

cd /usr/local
wget   https://studygolang.com/dl/golang/go1.11.linux-amd64.tar.gz
tar -zxvf go1.11.linux-amd64.tar.gz
vim /etc/profile
export GOROOT=/usr/local/go
export PATH=$PATH:$GOROOT/bin
export GOARCH=amd64  # 注意这个坑
source /etc/profile

apt-get install build-essential mercurial git

1.3、下载源码

cd ~
git clone https://github.com/inconshreveable/ngrok.git

1.4、生成证书

注意：NGROK_DOMAIN需要换成自己的域名

cd ngrok
mkdir ssl
cd ssl
export NGROK_DOMAIN="limengshuai.top"
openssl genrsa -out rootCA.key 2048
openssl req -x509 -new -nodes -key rootCA.key -subj "/CN=$NGROK_DOMAIN" -days 5000 -out rootCA.pem
openssl genrsa -out device.key 2048
openssl req -new -key device.key -subj "/CN=$NGROK_DOMAIN" -out device.csr
openssl x509 -req -in device.csr -CA rootCA.pem -CAkey rootCA.key -CAcreateserial -out device.crt -days 5000
cp rootCA.pem ../assets/client/tls/ngrokroot.crt
cp device.crt ../assets/server/tls/snakeoil.crt
cp device.key ../assets/server/tls/snakeoil.key

1.5、生成服务端和客户端

服务端
GOOS=linux GOARCH=amd64 make release-server
window客户端
GOOS=windows GOARCH=amd64 make release-client
linux客户端
GOOS=linux GOARCH=amd64 make release-client

1.6、启动服务器

nohup ./bin/ngrokd -domain="$NGROK_DOMAIN" -httpAddr=":8000" -httpsAddr=":8443" >log/ngrok.log &

• -httpAddr=”:8000” http服务的访问端口 默认80
• -httpsAddr=”:8443” https服务的访问端口 默认443
• -tunnelAddr=”:4443” 客户端连接服务端的端口 默认4443

注意：上述端口需要通过防火墙

2、客户端使用

2.1、将生成的客户端复制到windows电脑中

2.2、创建一个ngrok.cfg配置文件

在当前目录建一个上述配置文件

server_addr: "limengshuai.top:4443"  
trust_host_root_certs: false
tunnels:
 ssh:
  remote_port: 1122
  proto:
   tcp: 22
 ftp:
  remote_port: 20
  proto:
   tcp: 20
 ftp2:
  remote_port: 21
  proto:
   tcp: 21
 http:
  subdomain: www
  proto:
   http: 80
   https: 443

2.3、启动

启动指定通道
ngrok -config ngrok.cfg start ftp
ngrok -config ngrok.cfg start http

启动所有通道
ngrok -config ngrok.cfg start-all

2.4、编写脚本

@echo on
ngrok -config=ngrok.cfg -proto=tcp 192.100.3.22:22
REM ngrok -config=ngrok.cfg -log=ngrok.log -subdomain=yjc 192.100.3.205:8081
REM ngrok -config ngrok.cfg start-all

2.5、帮助

Usage: ngrok.exe [OPTIONS] <local port or address>
Options:
  -authtoken string
        Authentication token for identifying an ngrok.com account
  -config string
        Path to ngrok configuration file. (default: $HOME/.ngrok)
  -hostname string
        Request a custom hostname from the ngrok server. (HTTP only) (requires CNAME of your DNS)
  -httpauth string
        username:password HTTP basic auth creds protecting the public tunnel endpoint
  -log string
        Write log messages to this file. 'stdout' and 'none' have special meanings (default "none")
  -log-level string
        The level of messages to log. One of: DEBUG, INFO, WARNING, ERROR (default "DEBUG")
  -proto string
        The protocol of the traffic over the tunnel {'http', 'https', 'tcp'} (default: 'http+https') (default "http+https")
  -subdomain string
        Request a custom subdomain from the ngrok server. (HTTP only)
Examples:
        ngrok 80
        ngrok -subdomain=example 8080
        ngrok -proto=tcp 22
        ngrok -hostname="example.com" -httpauth="user:password" 10.0.0.1
Advanced usage: ngrok [OPTIONS] <command> [command args] [...]
Commands:
        ngrok start [tunnel] [...]    Start tunnels by name from config file
        ngork start-all               Start all tunnels defined in config file
        ngrok list                    List tunnel names from config file
        ngrok help                    Print help
        ngrok version                 Print ngrok version
Examples:
        ngrok start www api blog pubsub
        ngrok -log=stdout -config=ngrok.yml start ssh
        ngrok start-all
        ngrok version