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Description of problem:
When default realm is set only in /etc/sysconfig/krb5kdc, but neither in DNS nor in /etc/krb5.conf, /etc/init.d/krb5kdc produces the following error message:

    Error getting default realm: Configuration file does not specify default realm.

This message is being output by kdb_check_weak, which is not supplied the configured realm (contrary to krb5kdc itself).

Version-Release number of selected component (if applicable):
krb5-server-1.10.3-10.el6.x86_64

How reproducible:
Always

Steps to Reproduce:
1. Specify default realm in /etc/sysconfig/krb5kdc
2. Make sure default realm is specified neither in DNS nor in /etc/krb5.conf
3. Execute "service krb5kdc restart"

Actual results:
Stopping Kerberos 5 KDC:                                   [  OK  ]
Error getting default realm: Configuration file does not specify default realm.
Starting Kerberos 5 KDC:                                   [  OK  ]

Expected results:
Stopping Kerberos 5 KDC:                                   [  OK  ]
Starting Kerberos 5 KDC:                                   [  OK  ]

Created attachment 799313 [details]
0001-Specify-realm-to-kdb_check_weak-when-defined.patch

The attached patch fixes the problem.

Thanks for spotting this!

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHSA-2014-1389.html