How to fix "Add an inbound network security group rule with destination port 22. " error while connecting to a Virtual Machinal through SSH even though the rule already exists.

Question

I am trying to connect to a Azure Virtual Machine via SSH. But it shows that one of the prerequisites is not fulfilled. Namely, "Add an inbound network security group rule with destination port 22.". However when I see my Inbound Port Rules, the required rule is already added. Tell me how should I fix it?

1. Error -->
   
2. Port Rule Already exists -->
   

Although, I still connected via SSH ignoring the above warning, and now the DNS name for my web application I deployed on the particular Virtual Machine, does not work.

Let me know how to resolve this?

Answer 1

Hi @Anubhuti Gupta,

Did you open 22 on your VM?

Please look into detailed guide below:

https://learn.microsoft.com/en-us/azure/virtual-machines/windows/connect-ssh?tabs=azurecli

or if you have another service on this port please try to open 22 on Windows/Linux Firewall.

Answer 2

Following is a nice reference to help you on detailed troubleshooting of the strange issue you face. Hope, it helps

https://learn.microsoft.com/en-us/troubleshoot/azure/virtual-machines/troubleshoot-ssh-connection

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