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A user's DCE credentials (stored in the directory
/opt/dcelocal/var/security/creds) are not automatically removed by
exiting a shell or logging out. Unless any background processes require DCE
credentials, the credentials can be removed before logging out by running
kdestroy utility. This will make the system more secure by decreasing
the opportunity for someone to maliciously gain access to your network
credentials.
The kdestroy command has been modified to allow destruction of
credentials older than a specified number of hours. kdestroy -e exp-period
my be run manually to purge older credential files.
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