On Tue, Feb 14, 2012 at 7:01 PM, Oliver Garraux <oli...@g.garraux.net> wrote: >> I need to setup an A record for a machine who's IP might change >> unexpectedly, and I need to ensure PCs out there cache it for as short >> a time as possible: >> >> host1 300 IN A 10.10.10.10 >> >> Does anyone know whether MS windows PCs will in fact honour that 300s, >> then force a re-lookup? Can I use even shorter values? eg, 60? ... > I don't think you'll have a problem with clients not respecting TTL's. > Some ISP's resolvers might have a minimum TTL, but 300 seconds isn't > all that low. You might run into issues with some service providers > if you're trying to do something like a 5 second TTL.
Thanks to all for the spirited responses - it's appreciated. All good information. -- Regards, gk _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
