[1555] in Kerberos_V5_Development

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Re: kdc.conf [realms] section

daemon@ATHENA.MIT.EDU (Ken Raeburn)
Tue Aug 13 14:58:06 1996

To: "Barry Jaspan" <bjaspan@MIT.EDU>
Cc: hartmans@MIT.EDU, krbdev@MIT.EDU
From: Ken Raeburn <raeburn@cygnus.com>
Date: 13 Aug 1996 14:57:25 -0400
In-Reply-To: "Barry Jaspan"'s message of Tue, 13 Aug 1996 12:57:41 -0400

"Barry Jaspan" <bjaspan@MIT.EDU> writes:

>   One occurs to me right away -- one server acting as slave for one
>   realm and master KDC/admin server for another. 
>
>Hmmm.  When would this arrangement actually be used?

If I wanted a realm for RAEBURN.ORG, I might set up one of the
machines at Cygnus as the primary server.  The two most likely
candidates are both running slave servers for CYGNUS.COM.

> It seems like it ought to be possible to use the load -update option
> to merge in just the entries from the realm the dual server is a slave
> for, without affecting the entries from the realm the dual server is a
> master for.  This would the not require a separate dump/merge step at
> all.

Will that handle principals being deleted in the realm for which the
server is a slave (i.e., an entry in the database for which there is
no update in the dump file because it is supposed to go away)?

> One problem does occur to me.  KADM5 policy names do not include
> realms.  So, if the two realms had overlaping names for different
> policies, the values on the dual server would get overwritten.  This
> could be solved by grepping out all policy lines from the dump file
> before loading it on the dual server.  However, if the KDC ever starts
> using policies to make ticket-issuing decisions, this will be a problem.

Sounds like another reason for keeping the databases (and all
associated data) separate.

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