Can't get rid of an incorrect DNS suffix

Question

I made a DNS suffix in the properties of my NIC.

Turns out the suffix is wrong.

Whatever I try I can't get rid of it.

Answer 1

Hi Pieter!

Can you provide little more context? That would really help answer the question!

Does it pertain to a virtual machine that has the NIC with the incorrect DNS suffix?

Anyhow if that is the case you could try resetting it by:

• Use Azure CLI or PowerShell to update the NIC settings. Here’s how you might do it with Azure CLI:

    
    az network nic update --resource-group YourResourceGroupName --name YourNicName --dns-servers ""
  
  
  
  
    
  

• With PowerShell:

    Set-AzNetworkInterface -ResourceGroupName "YourResourceGroupName" -Name "YourNicName" -CustomDnsServers $null
  
  
  
  
  
  

Don't forget to restart your virtual machine to apply the updates to the DNS configuration. Finally, ensure that no custom configurations in your NSGs or custom route tables are causing conflicts or misconfigurations. If you've tried all the above steps and the DNS suffix issue persists, consider contacting Azure support as there might be a deeper integration or setting that's causing the problem.

Hope that helps!