Ports for the KDC and admin services ==================================== The default ports used by Kerberos are port 88 for the KDC1 and port 749 for the admin server. You can, however, choose to run on other ports, as long as they are specified in each host's ``/etc/services`` and :ref:`krb5.conf(5)` files, and the :ref:`kdc.conf(5)` file on each KDC. For a more thorough treatment of port numbers used by the Kerberos V5 programs, refer to the :ref:`conf_firewall_label`. Feedback -------- Please, provide your feedback or suggest a new topic at krb5-bugs@mit.edu?subject=Documentation___realm_config