OT: DNS Failover

[Mike McGrath]

> -----Original Message-----
> From: fedora-list-bounces at redhat.com 
> [mailto:fedora-list-bounces at redhat.com] On Behalf Of Thomas Cameron
> Sent: Wednesday, August 31, 2005 12:11 PM
> To: For users of Fedora Core releases
> Subject: Re: OT: DNS Failover
> 
> > If you are looking for failover of the looked-up addresses, in many 
> > cases you can always give out multiple addresses by 
> including them as 
> > A records for the same name.  Browsers seem to be very good 
> at failing 
> > over on the client side if some of the returned addresses 
> don't work.
> 
> Have you had success at that?  I've found that Windows 
> clients tend to cache DNS results no matter what your TTL is, 
> and to only use the first IP address they get until their 
> internal cache expires.  You basically have to run ipconfig 
> /flushdns to make a Windows box dump the IP address and 
> re-query the DNS server.
> 
> Thomas
> 
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> 

Its good to know that this isn't as simple an answer as it seems it
should be, I'll be testing the multiple A record possibility over the
next week or two, I'll post the results.  From what I understand having
multiple A records can work in many occasions, but as far as DNS is
concerned it wasn't designed to do that.

	-Mike