Edit File: kdc.conf
[kdcdefaults] kdc_listen = 88 kdc_tcp_listen = 88 [realms] ATHENA.MIT.EDU = { database_name = /usr/local/var/krb5kdc/principal acl_file = /usr/local/var/krb5kdc/kadm5.acl key_stash_file = /usr/local/var/krb5kdc/.k5.ATHENA.MIT.EDU kdc_listen = 88 kdc_tcp_listen = 88 max_life = 10h 0m 0s max_renewable_life = 7d 0h 0m 0s }