Port 135 domain controller. 1. Jul 14, 2022 · UDP and TCP Port 135 for domain controllers-to-domain controller and client to domain controller operations. . Proper planning of port requirements is crucial for the security, performance, and stability of Active Directory and PKI. Feb 12, 2026 · This article introduces how to configure Active Directory replication remote procedure calls traffic to a specific port. UDP 53 DNS 6. Client computers, domain controllers and application servers need network connectivity for Active Directory on particular hard coded ports. TCP 135 Microsoft RPC 2. The following shows you how to configure the firewall rules for inbound communication and domain traffic for a Privileged Access Service deployment—including the ports and protocols used between different components—depend on several factors. TCP 88 Kerberos 4.
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