Using Xiaomi Ball for Intranet Penetration under Linux (Ubuntu)

First download the ngrok client : http://ngrok.ciqiuwl.cn/

Create a new folder mkdir /usr/local/xiaomiqiu on Linux

Then unzip the file to that directory and rename it

Go to the ngrok directory cd ngrok

Grant execution authorization chmod a+x ngrok

Then execute  ./ngrok -config=ngrok .cfg -subdomain xxx 80 xxx is the prefix you mapped, and 80 is the port you mapped.