Useful ports for AD

TCP UDP ICMP
RDP Remote Desktop 3389
DNS DNS Download 53
DNS Queries 53
WINS Replication WINS 42
WINS 42
ICMP echo-request 8
info-request 15
mast request 17
timestamp 13
NetBIOS Services Name Resolution Service 137 137
Datagram Services (Browsing) 138
Session Service (net use) 139
SMB Input 445
Output 445
Remote Storm 1025
NTP NTP 123
NTP 123
Content Replication Content_Repl 507
Kerberos Kerberos-Secure 750
Kerberos_v5 88 + 464
Kerberos_v5 88 + 464
LDAP LDAP 389
LDAP 389
LDAP over SSL/TLS 636 636
Global Catalog 3268
Global Catalog over SSL/TSL 3269
Replication Active Directory RPCSS Dynamic
FRS RPCSS Dynamic
Microsoft CIFS Microsoft-CIFS (DS) 445
Microsoft-CIFS (DS) 445
RPC – Cert Services (+) RPC 135
SNMP SNMP Agent 161
SNMP Trap 162
ASP.Net State Service 42424
Link State Algorithm Routing 691
TCP – High Ports (Cert Services) > 1023 1024 - 65535