Directory & Active Directory ports

The ports a domain controller and directory services listen on — Kerberos, LDAP, SMB, RPC, Global Catalog, WinRM and RADIUS.

16 ports in this category

Port	Service	Transport
49	TACACS+ (Terminal Access Controller Access-Control System Plus)	tcp
88	Kerberos	tcp, udp
135	MSRPC Endpoint Mapper	tcp
137	NetBIOS Name Service (NBT-NS)	udp
139	NetBIOS Session Service	tcp
389	LDAP (Lightweight Directory Access Protocol)	tcp, udp
445	SMB / CIFS	tcp
547	DHCPv6 (Dynamic Host Configuration Protocol for IPv6) server	udp
636	LDAPS (LDAP over TLS)	tcp
1645	RADIUS authentication (legacy)	udp
1812	RADIUS authentication	udp
3268	LDAP Global Catalog (Active Directory)	tcp
3269	LDAP Global Catalog over SSL/TLS (Secure Global Catalog)	tcp
5985	WinRM (HTTP)	tcp
5986	WinRM over HTTPS	tcp
9389	ADWS (Active Directory Web Services)	tcp

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