Possible to redirect if domains' website is down?

[Joseph S D Yao]

On Wed, Sep 13, 2000 at 08:36:01PM +0300, Thor Kottelin wrote:
> Joseph S D Yao wrote:
> > On Wed, Sep 13, 2000 at 12:32:18AM -0500, John Cassel wrote:
> > > Not sure if this would/could be handled by dns, but will try anyway.  Was
> > > wondering if I could set it up so that if the website/ip is down for a given
> > > domain  MYDOMAIN.COM pointing to 99.99.99.99 that it would automatically
> > > redirect the user to 88.88.88.88
> > 
> > There are some commercial products that do this.  It is not part of
> > DNS.
> 
> Wouldn't DNS, per se, actually be able to do it, if clients just supported
> SRV records?
> 
> "The SRV RR allows administrators to use several servers for a single
> domain, to move services from host to host with little fuss, and to
> designate some hosts as primary servers for a service and others as
> backups." - RFC 2782
> 
> @ORIGIN MYDOMAIN.COM.
> _http._tcp	SRV	10	0	80	webserver-1
> 		SRV	20	0	80	webserver-2
> webserver-1	A	99.99.99.99
> webserver-2	A	88.88.88.88
> 
> Please correct me if I'm wrong - this is mere theory for me, since I have
> yet to see a RFC 2782 -compliant web browser.	:-(

Exactly.  That is the theory, but nobody has put it into practice.  At
least, not that I know of.  ;-)

-- 
Joe Yao				jsdy at cospo.osis.gov - Joseph S. D. Yao
COSPO/OSIS Computer Support					EMT-B
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