/usr/share/doc/krb5-server-<version-number>/ directory (where <version-number> is the version number of the krb5-server package installed on your system).
/usr/share/doc/krb5-workstation-<version-number>/ directory (where <version-number> is the version number of the krb5-workstation package installed on your system).
man kerberos — An introduction to the Kerberos system which describes how credentials work and provides recommendations for obtaining and destroying Kerberos tickets. The bottom of the man page references a number of related man pages.
man kinit — Describes how to use this command to obtain and cache a ticket-granting ticket.
man kdestroy — Describes how to use this command to destroy Kerberos credentials.
man klist — Describes how to use this command to list cached Kerberos credentials.
man kadmin — Describes how to use this command to administer the Kerberos V5 database.
man kdb5_util — Describes how to use this command to create and perform low-level administrative functions on the Kerberos V5 database.
man krb5kdc — Describes available command line options for the Kerberos V5 KDC.
man kadmind — Describes available command line options for the Kerberos V5 administration server.
man krb5.conf — Describes the format and options available within the configuration file for the Kerberos V5 library.
man kdc.conf — Describes the format and options available within the configuration file for the Kerberos V5 AS and KDC.