[38833] in Kerberos
Re: Selective kdc discovery
daemon@ATHENA.MIT.EDU (Grant Taylor)
Sun Nov 1 13:08:40 2020
To: kerberos@mit.edu
From: Grant Taylor <gtaylor@tnetconsulting.net>
Message-ID: <8a909932-1fc3-fd3b-eb5c-e5cf8fddb3f7@spamtrap.tnetconsulting.net>
Date: Sun, 1 Nov 2020 11:06:07 -0700
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In-Reply-To: <10c3f066-41e0-052b-cf26-2e9ef475eb71@acm.org>
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On 10/29/20 12:13 PM, Paul B. Henson wrote:
> Any other suggestions for achieving a separate primary/failover=20
> configuration for two different network locations in a fashion that=20
> would work properly with the Java kerberos client?
I have no idea if this would work or not.
But I would consider DNS views / host entries such that the first name=20
in the list always resolved to the local server and subsequent names=20
resolved to remote servers.
The other thing I might try is to work with the networking team to see=20
if it's possible to have things on an anycast IP to attract clients to=20
the closest server. In the event that the close server has a problem,=20
stop announcing the anycast IP and things will naturally go to the next=20
closest server.
You might be able to achieve similar behavior with something like a load =
balancer.
I have no idea what sort of protections are in place that might fight=20
this or what would need to be done to overcome it. Possibly having the=20
local and remote instance be a clone of each other so that they seem to=20
be the same entity.
--=20
Grant. . . .
unix || die
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