Windows - What are Ports needed for Active Directory ?

In order to add a machine to the Active Directory (Domain) or to allow you machine to speak with a Domain Controller you will need to open the following ports,

LDAP         - TCP+UDP/389
DNS          - UDP/53
SMB          - UDP/138
SMB          - TCP/445
Kerberos   - UDP/88

About the Author


R Donato

Rick Donato is the Founder and Chief Editor of He currently works as an SDN/NFV Solutions Architect and has a keen interest in automation and the cloud.

You can find Rick on Twitter @f3lix001