[libdefaults]
default_realm = <REALM NAME>
dns_lookup_realm = false
dns_lookup_kdc = false
ticket_lifetime = 24h
renew_lifetime = 7d
forwardable = true

[realms]
<REALM NAME> = {
kdc = <Location where KDC is installed> 
admin_server = <Location where KDC is installed>
                                }
 [domain_realm]
.<domain name or hostname> = <KERBEROS DOMAIN NAME>
<domain name or hostname> = <KERBEROS DOMAIN NAME>