Random question about DNS

Andy Armstrong andy at hexten.net
Thu Feb 15 15:55:09 GMT 2007

On 15 Feb 2007, at 15:30, Peter Corlett wrote:
> I have a fair number of domains that use nameservers ns 
> [01].cabal.org.uk.
> When I change the IP address of the nameserver, I only need to  
> update the
> glue record in cabal.org.uk and all the other domains (e.g.  
> 1k.org.uk) pick
> up the change. I arranged it this way on purpose so I could easily  
> change
> the IP address of the nameservers on all my domains just by  
> updating the
> glue records on two.

Ah, that sounds hopeful. I've changed the nameservers just now for  
all the domains so perhaps at least some of them will sort themselves  
out over the next 24 hours.

> So, when a resolver wants to look up, say, www.1k.org.uk, it would  
> see that
> the NS records for 1k.org.uk point to ns0.cabal.org.uk and do a  
> separate A
> lookup on that[1], which picks up the glue record I changed on  
> cabal.org.uk.
> It can then query the server returned. (It'd then get a NXDOMAIN  
> because I
> haven't done anything with that domain yet.)

Cool, ta.

Andy Armstrong, hexten.net

More information about the london.pm mailing list