Re: Weird DNS issues for domains

[John Dupuy <jdupuy-list () socket net>]

If you are talking about strictly http, then you are probably right. If you 
are hosting any email, then this isn't the case. A live DNS but dead mail 
server will cause your mail to queue up for a later resend on the 
originating mail servers. A dead DNS will cause the mail to bounce as 
undeliverable. (Oh, and if any of your subs are on mailing lists, they will 
be unsubscribed en masse. A nice way to challenge your call center...)

John

At 12:06 PM 9/29/2005, Matthew Crocker wrote:


> > I just tested it from a Verizon DSL host and it worked.
> >
> > You might want to consider reading RFC 2182 though, particularly the
> > part about geographically diverse nameservers.
>
> Yeah, yeah,  that is overrated.  If my site goes dark and my DNS goes
> down it doesn't really matter as the bandwidth and the web server
> will also be down.  Having a live DNS server in another part of the
> country won't help if the access routers handling the traffic for the
> T1 to the school is also down.
>
> Geographically diverse name servers sounds great in theory but for
> this application it won't gain any redundancy.
>
> --
> Matthew S. Crocker
> Vice President
> Crocker Communications, Inc.
> Internet Division
> PO BOX 710
> Greenfield, MA 01302-0710
> http://www.crocker.com