The project is deployed to the public network for free (intranet penetration)

One . Peanut shell

Official website ：https://hsk.oray.com/

course ：https://service.oray.com/question/2480.html

1. Only by default tcp, Other services （ Such as http） Need to spend money to open , The minimum 6 element .
2. Mapping can cause various problems , such as ：“ domain name IP The address to ” And “ Forwarding server IP” atypism , Cause connection failure （ I use ipv4 Of this machine ip When this happens, the connection fails , Change it to 127.0.0.1 after , Successful connection ）.

Two . NATAPP

Official website ：https://natapp.cn/

1. The use procedure is similar to peanut shell , You can create free tunnels .
2. Need real name authentication , Alipay authorized
3. Download client

3、 ... and . localtunnel（ free , recommend ）

course ：https://segmentfault.com/a/1190000014807448

npm install -g localtunnel
lt --subdomain < Personality prefix > --port < Port to map >

 for example ,  The local project address is ：http://localhost:3000
 Add prefix as ：lt --subdomain test --port 3000
 Mapping address is ：https://test.loca.lt