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17.4. Accessing Delegated Services

For both services and hosts, if a client has delegated authority, it can obtain a keytab for that principal on the local machine. For services, this has the format service/hostname@REALM. For hosts, the service is host.
With kinit, use the -k option to load a keytab and the -t option to specify the keytab. For example:
To access a host:
[root@server ~]# kinit -kt /etc/krb5.keytab host/
To access a service:
[root@server ~]# kinit -kt /etc/httpd/conf/krb5.keytab HTTP/