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IT Atlas

Protocol

Kerberos

Ticket based authentication

Port 88TCP / UDPEncrypted: Yes

Record

Ports
88
Transport
TCP / UDP
Encryption
Yes
Typical use
Windows domain authentication

Security considerations

Clock skew breaks it; watch for Kerberoasting and ticket forging

Where this protocol is explained

Kerberos

A ticket based authentication protocol that proves identity to services without sending the password across the network.

Topics that use this protocol

Active Directory

Microsoft's on premises directory service, providing authentication, authorisation, policy and object management for Windows environments.

Kerberos

A ticket based authentication protocol that proves identity to services without sending the password across the network.

Other protocols over TCP / UDP

Kerberos kpasswdLDAPRDP

In the knowledge graph

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Explore Kerberos in the knowledge graph