Hello, Planning to start VM automatically using logic apps. I already tried without any issue. But how do I check automatically if Azure VM can be accessible or not? What I mean by that is I sometimes cannot access to VMs using RDP, even though they are running. After restarting VMs, I can access to VMs with RDP. So, I would like to know how to check VM accessibility in an automated way after starting VM with logic apps. (if not accessible, I would like to make VMs restart)

Hi @Testa , maybe a simple PowerShell script helps: $testConnection = Test-NetConnection -ComputerName <Your VM Name> -Port 3389 if ($testConnection.TcpTestSucceeded) { Write-Output "Looks good" } else { Write-Output "Unable to reach the VM on TCP port 3389" } ---------- (If the reply was helpful please don't forget to upvote and/or accept as answer , thank you) Regards Andreas Baumgarten

how to check if no issue on Azure VMs starting automatically

Accepted answer

Andreas Baumgarten 104K Reputation points MVP

2022-08-31T06:32:56.177+00:00
Hi @Testa ,

maybe a simple PowerShell script helps:

$testConnection = Test-NetConnection -ComputerName <Your VM Name> -Port 3389 if ($testConnection.TcpTestSucceeded) { Write-Output "Looks good" } else { Write-Output "Unable to reach the VM on TCP port 3389" }

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(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

Regards
Andreas Baumgarten
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Testa 551 Reputation points

2022-08-31T06:54:23.13+00:00

Thank you!

Testa 551 Reputation points

2022-09-01T05:39:06.387+00:00

Hi @Andreas Baumgarten ,

Thank you again for your advice. I tried with Azure Automation, but I received the error and could not figure out to solve this after checking in Google....

"The 'Test-NetConnection' command was found in the module 'NetTCPIP', but | the module could not be loaded. For more information, run 'Import-Module| NetTCPIP'."

1, Is there any way to fix this?
2, Is there any way to check Azure VM accessibility with Python SDK? I cannot find the command like "Test-NetConnection" in python.
(I can start the VM without any issue, but I cannot get public IP address and ping to the VM)

If I need to create another thread, could you please let me know?

Thank you.

Andreas Baumgarten 104K Reputation points MVP

2022-09-01T07:00:49.137+00:00

Hi @Testa ,

which PowerShell version you choosed for the PowerShell runbook in Azure Automation?

I created a PowerShell 5.1 runbook. with the following script:

The VM is reachable via DNS name to resolve the public IP address.

The result looks like this:

You can try the following Python script if you prefer Python instead of PowerShell:

import socket socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) result = socket.connect_ex(('<DnsNameOfyourVM>.cloudapp.azure.com',3389)) if result == 0: print "Looks good" else: print "Unable to reach the VM on TCP port 3389" socket.close()

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(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

Regards
Andreas Baumgarten

Testa 551 Reputation points

2022-09-01T07:47:38.707+00:00

Hi @Andreas Baumgarten ,

It works! Thank you again for your help!

Andreas Baumgarten 104K Reputation points MVP

2022-09-01T07:49:11.447+00:00

You are welcome.

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Kind regards
Andreas Baumgarten

Testa 551 Reputation points

2022-09-01T09:56:57.697+00:00

Thank you! It works!
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how to check if no issue on Azure VMs starting automatically

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