Cache lag on NS change for 5 days ??

Dave xyz8 at hotmail.com
Wed Aug 6 13:21:00 UTC 2003


Mark_Andrews at isc.org wrote in message news:<bgpds1$i9n$1 at sf1.isc.org>...
> > The nameservers on micouriers.co.uk were changed to a new hosting
> > service recently (according to nominet.org.uk on July 31st).
> > 
> > With my ISP (telewest.co.uk) the change was finally apparent Sunday
> > 3rd August. The broadband ISP that the micouriers people use, FirstNet
> > (http://www.firstnet.net.uk/), has apparently still got stale data in
> > their cache, and so in the office they can't see the site or receive
> > email from the pop subdomain.
> > 
> > A tracert micouriers.co.uk on their office computers won't resolve.
> > 
> > I can 'fix' this on Win clients with the Hosts file, but I want to
> > track down what's wrong (the support people at firstnet are no help).
> > 
> > Surely a 1 day TTL (nslookup with server ns2.gradwell.net) shouldn't
> > lead to 5 day old data? Do the records for the domain look ok?
> 
> 	Ensure that the *old* servers have the *new* zone content or
> 	are not serving the zone.

Thanks, I hadn't thought of that.


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