On Fri, Feb 20, 2009 at 1:29 PM, Per Qvindesland <per@xxxxxxxxxx> wrote:
>
> I've two servers running the same ldap service. A is primary server and B is
> simply a mirror, and accounts from server A are constantly synchronized with
> B.
>
> Now I don't have a automatic failover solution, whenever server A goes down,
> I have to point the domain's A record to server B and wait for the DNS to
> get updated. Takes quite a lot of time but the ldap service is crucial to
> the system and shouldn't be down for longer than a few minutes.
>
> I've heard about Dyndns? They provide automatic failover if one server does
> down, what I want to know is if I can do the same using Bind? And if it's
> possible to do it automatically? Without human intervention.
>
> I don't want a round-robin solution, I want a automatic switchover if
> primary box goes down.
I also recommend you use a service IP address that can be migrated
between your 2 servers. You can use heartbeat to automate that or do
that manually as you are doing now. But moving a service IP is much
simpler and faster. Stay away from using DNS to manage the failover.
As you said is can take a while.
Regards,
Tim
--
Tim Verhoeven - tim.verhoeven.be@xxxxxxxxx - 0479 / 88 11 83
Hoping the problem magically goes away by ignoring it is the
"microsoft approach to programming" and should never be allowed.
(Linus Torvalds)
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