Seems that it doesn't work on azure
I can see my server listening to the ports, all is configured well (including ports / firewall)
telnet to port 9999 on localhost work well but not from outside to the public ip.
```tcp6 0 0 :::9996 :::* LISTEN
tcp6 0 0 :::9997 :::* LISTEN
tcp6 0 0 :::9998 :::* LISTEN
tcp6 0 0 :::9999 :::* LISTEN
tcp6 0 0 :::111 :::* LISTEN
tcp6 0 0 :::46162 :::* LISTEN
tcp6 0 0 :::22 :::* LISTEN
tcp6 0 0 :::9090 :::* LISTEN
tcp6 0 0 :::9097 :::* LISTEN
tcp6 0 0 :::9098 :::* LISTEN ```