¿How to fix LISTENING port failures?

Question

Hi,

I'm trying to create a game, but, when I run the .exe to start the server I got some port failures, I already openned the VM ports, attached you will see some of the rules that I created for the VM.

In a moment of desperation I opened all the ports of the virtual machines by ranges, except the most important ones, the ones I was told not to open by recommendation, but I even do netstat and this is what I get

netstat -an | findstr 1978

TCP 10.0.0.4:55058 20.63.16.89:1978 SYN_SENTAny suggestion or anyhelp?

Answer 1

@EDUARDO ENRIQUE MEJIA FRANCO ,

Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well.

From your verbatim, and configuration,

• It looks like you want inbound access from Internet to this VM on Port 1971
• Is this correct? If not, please let me know

As next steps,

• From your Inbound NSG Rules, I can see traffic towards 1971 is allowed
  • As long as the Destination is either the VM's IP or Any or VirtualNetwork
• This is not a blockage at Platform level
• It is possible that the application you are trying to run is not accepting the connection properly or not listening on Port 1971 in the first place.
• From this VM, after starting the application, can you share the results of
  netstat -an | findstr "LISTEN"
• If your service is listening, you should see results such as below
  • 
  • The ":22" on the left side indicates Port 22 is open, and ":0" on right side indicates that any port can communicate to it

Cheers,

Kapil