DNS reliability (Re: [oclug] RedHat Enterprise and HP servers)

[Rod Giffin]

Matthew Wilcox said:
> On Tue, Jun 22, 2004 at 01:21:53PM -0400, Charlie Brady wrote:
>> Not even that if it's a software failure which occurs. Most DNS
>> outages  are software problems, aren't they?
>
> I don't think I've ever seen a DNS outage caused by problems with BIND.
> Caused by badly configured software, yes.  Caused by router problems,
> more frequently.  Caused by politics, most frequently.

Certainly can't argue with that.

One of the best ways to ensure DNS reliability is to put your DNS's on
completely separate high availability networks, ideally a couple of
thousand miles apart.  It makes no sense to operate highly available
servers with single points of failure like a single network hub, or a
single router.  You wouldn't achieve much reliability that way at all.

Rod.