Firewall Ports for Active Directory Communication

Table of Contents

The following ports are required to be open for SharePoint in order for it to communicate between network domains in your environment. A one-way trust is required between network domains and the necessary firewall ports need to be opened.

Firewall Ports

  • TCP/UDP 135 (RPC)
  • TCP/UDP 389 by default, customizable (LDAP)
  • TCP 636 by default, customizable (LDAP SSL)
  • TCP 3268 (LDAP GC)
  • TCP 3269 (LDAP GC SSL)
  • TCP/UDP 53 (DNS)
  • TCP/UDP 88 (Kerberos)
  • TCP/UDP 445 (Directory Services)
  • TCP/UDP 749 (Kerberos-Adm)
  • TCP port 750 (Kerberos-IV)

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