HP-UX 11i June 2004 Release Notes

Security
HP-UX Kerberos Server Version 2.0
Chapter 13
282
High Availability
In the event of the primary server crashing or going down, the secondary server (backup)
can immediately be made the primary server. This provides for high availability in the
case of mission critical applications. Also, the Kerberos server daemon (kdcd) is always
monitored by a parent process. If the child process dies/crashes it will automatically
spawn a new server daemon.
Propagation
In the Kerberos Server version 1.0, the entire database needs to be periodically dumped
and propagated (typically over the night). This will result in the databases not being in
sync and reduces performance as there would be heavy traffic during propagation.
However, in Kerberos Server version 2.0, the database is propagated automatically and
the propagation is incremental. Only those entries that have changed/newly added will
be dumped.