[7687] in Kerberos

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Re: Cross-realm authentication

daemon@ATHENA.MIT.EDU (Paul A Vixie)
Sun Jul 28 05:22:39 1996

To: kerberos@MIT.EDU
Date: 28 Jul 1996 06:28:57 GMT
From: vixie@vix.com (Paul A Vixie)

> Help Please!

With the help of several Kerberos wizards, I finally learned about K4
cross-realm authentication recently.  It's so simple it's embarrassing
that someone had to explain it to me.

In the NET.CSUCHICO.EDU realm, add this principal:

	principal:	rcmd
	instance:	ECST.CSUCHICO.EDU
	password:	SharedSecret

In the ECST.CSUCHICO.EDU realm, add this principal:

	principal:	rcmd
	instance:	NET.CSUCHICO.EDU
	password:	SharedSecret

You don't have to use "SharedSecret" -- anything will do as long as it's
the same password both times.  I moused in some line noise which I will
never remember, since I don't care to remember it.

That's _IT_.  On a system whose srvtab and krb.conf files make it part of
either of the above realms, you can put things into ~/.klogin containing
ticket names in either of the above realms.  krb.cont and krb.realms have
to list servers and domain bindings for both realms, too.

It doesn't work for ~root/.klogin (used by "su" on BSD/OS) but that's as
it should be, in my humble opinion.
-- 
Paul Vixie
La Honda, CA			"Illegitimibus non carborundum."
<paul@vix.com>
pacbell!vixie!paul

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