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Redsman13's avatar
Redsman13
Copper Contributor
Feb 28, 2023

Azure Virtual Desktop - Optional Rules for Session Host Virtual Machines

Hi all,

 

Just wondering if it is standard practise to include the optional rules for the Session Host VM's (see table below):

 

AddressOutbound TCP portPurpose
login.windows.net443Sign in to Microsoft Online Services and Microsoft 365
*.events.data.microsoft.com443Telemetry Service
http://www.msftconnecttest.com443Detects if the session host is connected to the internet
*.prod.do.dsp.mp.microsoft.com443Windows Update
*.sfx.ms443Updates for OneDrive client software
*.digicert.com443Certificate revocation check
*.azure-dns.com443Azure DNS resolution
*.azure-dns.net443Azure DNS resolution

 

Microsoft state that these optional rule MIGHT also be required to access other services:

https://learn.microsoft.com/en-us/azure/virtual-desktop/safe-url-list?tabs=azure

 

Would just like to hear other engineers experience on whether to implement or not.

 

Thanks in advance.

1 Reply

  • askaresh's avatar
    askaresh
    Iron Contributor
    In most case you will be further integrating the AVD into Azure services. Whitelisting them will be a good starting point. Rather later getting into troubleshooting mode as to why it's not working out of the box.