On Sat, 22 Jun 2002, Dave Warren wrote:
> I might be way off base, but if I remember correctly AOL used to to
> mishandle this and cache DNS data longer then the zonefile's TTL.
Amazingly, it could be worse. I had one admin in the UK a few years ago
that setup their name servers to ignore TTL altogether. The only way to
get them to clear their cache of stale data was for it to reboot and it
didn't reboot except once every six months. We eventually had to tell the
users that were stuck with that nasty name server to point their machines
at our name server. Even though the DNS traffic was going from the UK to
the US and back for these people they claimed their web performance
increased noticably. Scary.
If you're running DNS and you have not read /DNS and BIND/ and actually
understood it please unplug your network from the Internet until you do.
Thank you. :-)
--
</chris>
There are two ways of constructing a software design. One way is to make
it so simple that there are obviously no deficiencies. And the other way
is to make it so complicated that there are no obvious deficiencies.
- - C.A.R. Hoare
