Kerberos is a security protocol that provides an alternate mechanism for both client and server authentication. Kerberos authentication relies on a trusted third party called the KDC (Key Distribution Center). The Secure Shell protocol supports Kerberos authentication via GSSAPI (Generic Security Services Application Programming Interface).
To enable GSSAPI (Kerberos) authentication
Open the . dialog box
On thetab, select under . (If you want to ensure that only public key authentication is used, clear the other options.) (The GSSAPI application programming interface is used to obtain Kerberos tickets for ssh2 connections.)