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.\" Copyright 1989, 2003 by the Massachusetts Institute of Technology.
.\"
.TH K5SRVUTIL 1
.SH NAME
k5srvutil \- host key table (keytab) manipulation utility
.SH SYNOPSIS
k5srvutil
.B operation
[
.B \-i
] [
.B \-f filename
]
.SH DESCRIPTION
.I k5srvutil
allows a system manager to list or change keys currently in his
keytab or to add new keys to the keytab.
.PP
Operation must be one of the following:
.TP 10n
.I list
lists the keys in a keytab showing version number and principal
name.
.TP 10n
.I change
changes all the keys in the keytab to new randomly-generated keys,
updating the keys in the Kerberos server's database to match by using the
kadmin protocol. If a key's version number doesn't match the
version number stored in the Kerberos server's database, then the operation will fail. The old keys are retained
so that existing tickets continue to work.
If the \-i flag is given,
.I k5srvutil
will prompt for yes or no before changing each key. If the \-k
option is used, the old and new keys will be displayed.
.TP 10n
.I delold
Deletes keys that are not the most recent version from the keytab. This operation
should be used some time after a change operation to remove old keys.
If the \-i flag is used, then the program prompts the user
whether the old keys associated with each principal should be removed.
.TP 10n
.I delete
deletes particular keys in the keytab, interactively prompting for
each key.
.PP
In all cases, the default file used is /etc/krb5.keytab file
unless this is overridden by the \-f option.
.I k5srvutil
uses the kadmin program to edit the keytab in place. However, old keys are retained, so
they are available in case of failure.
.SH SEE ALSO
kadmin(8), ktutil(8)
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