Modify the configuration files, /etc/krb5.conf and
/usr/local/var/krb5kdc/kdc.conf to reflect the correct
information (such as the hostnames and realm name) for your realm.
MIT recommends that you keep krb5.conf in /etc.
Most of the tags in the configuration have default values that will
work well for most sites. There are some tags in the krb5.conf
file whose values must be specified, and this section will explain
those as well as give an overview of all of the sections in both
configuration files. For more information on changing defaults with
the configuration files, see the Kerberos V5 System Administrator's
Guide sections on configuration files.