The @code{kdc.conf} file contains KDC configuration information,
including defaults used when issuing Kerberos tickets. Normally, you
should install your @code{kdc.conf} file in the directory
@code{@value{ROOTDIR}/var/krb5kdc}. You can override the default
location by setting the environment variable @samp{KRB5_KDC_PROFILE}.
The @code{kdc.conf} file is set up in the same format as the
@code{krb5.conf} file. (@xref{krb5.conf}.) The @code{kdc.conf} file
may contain any or all of the following three sections:
@table @b
@item kdcdefaults
Contains default values for overall behavior of the KDC.
@item realms
Contains subsections keyed by Kerberos realm names. Each subsection
describes realm-specific information, including where to find the
Kerberos servers for that realm.
@item logging
Contains relations which determine how Kerberos programs are to perform
logging.
@end table