Kdc.conf

/tmp/kdc_t.conf

[kdcdefaults]
        kdc_ports = 8888

[realms]
        EXAMPLE.ORG = {
                database_name = %(sandir)s/principal
                acl_file = %(sandir)s/kadm5.acl
                key_stash_file = %(sandir)s/.k5.EXAMPLE.ORG
                admin_keytab = FILE:%(sandir)s/kadm5.keytab
                kdc_ports = 8888
                kpasswd_port = 8887
                kadmind_port = 8886
                max_life = 10h 0m 0s
                max_renewable_life = 7d 0h 0m 0s
        }
[logging]
        kdc = FILE:/tmp/myrealKDC.log

---

you can save it in /tmp/kdc.conf

[kdcdefaults]
        kdc_ports = 8888

[realms]
        EXAMPLE.ORG = {
                database_name = /tmp/krb5kdc/principal
                acl_file = /tmp/kadm5.acl

                key_stash_file = /tmp/krb5kdc/.k5.EXAMPLE.ORG
                admin_keytab = FILE:/tmp/krb5kdc/kadm5.keytab
                kdc_ports = 8888
                kpasswd_port = 8887
                kadmind_port = 8886
                max_life = 10h 0m 0s
                max_renewable_life = 7d 0h 0m 0s
        }
[logging]
        kdc = FILE:/tmp/myrealKDC.log