Skype for Business - Active Directory ports

PSZ 21 Reputation points

I was trying to find information regarding the ports which should be open between Skype for Business 2019 infrastructure and Active Directory but i couldn't find any information regarding it :/

Does anyone knows which ports should be open and in which direction between Skype for Business 2019 (Front End/Directors servers) and Active Directory servers?
Thanks for the help!
Best Regards

Skype for Business
Skype for Business
A Microsoft communications service that provides communications capabilities across presence, instant messaging, audio/video calling, and an online meeting experience that includes audio, video, and web conferencing.
606 questions
Active Directory
Active Directory
A set of directory-based technologies included in Windows Server.
5,990 questions
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  1. Thameur-BOURBITA 32,596 Reputation points


    You can refer to the link to get the list of required network to be opened with domain controllers:


    Regarding the network flows for FRS and DFS service are required only between domain controller to ensure the sysvol and Ad replication.

    Please don't forget to mark helpful reply as answer

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  1. PSZ 21 Reputation points

    Thank you for quick answer!

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