AD ports
Port Protocol Service 53 TCP/UDP DNS 88 TCP/UDP Kerberos authentication 123 UDP W32Time 135 TCP RPC Endpoint Mapper 137/138 * UDP NetBIOS 139 * TCP NetBIOS 389 TCP/UDP LDAP 445 TCP SMB 464 TCP/UDP Kerberos password change 636 TCP LDAP SSL 3268/3269 TCP LDAP Global Catalog / LDAP GC SSL 49152-65535 TCP RPC Ephemeral Ports