Skype for Business - Active Directory ports

Question

Hello!
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 :/

https://learn.microsoft.com/en-us/skypeforbusiness/plan-your-deployment/security/active-directory-domain-services

https://learn.microsoft.com/en-us/skypeforbusiness/plan-your-deployment/network-requirements/ports-and-protocols

https://learn.microsoft.com/en-us/skypeforbusiness/technical-diagrams

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

Answer 1

Hi,

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

config-firewall-for-ad-domains-and-trusts

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

Answer 2

Thank you for quick answer!