Kevin Darcy kcd at
Wed Oct 24 21:13:35 UTC 2001

DNS record TTL values and DHCP lease-time values should have nothing to
do with each other. Internally, we have lots of Win2K clients and most
of our DNS records have a TTL of one hour. I've never seen the behavior
you describe.

On the other hand, we don't have Win2K client registration turned on.
Maybe there's a bug in Microsoft's implementation of that feature
(surprise! shock!).

- Kevin

Takacs Istvan wrote:

> Hi,
> Do the TTL settings of our internal zone files affect
> the clients lease time, too?
> If I set the TTL of our internal zone files to
> a small time (2 hours), then the internal
> W2K clients drop their DNS settings and
> can't communicate with the servers.
> I'm not sure this happens because of the
> small lease time, so I'd like to ask you to
> explain this mystery.
> I have to use the "ipconfig /registerdns" command
> on the clients, and then everything works fine again.
> I thought that just the primary, and secondary
> DNS servers use the zone files, not the clients.
> Thanks in advance!
> Regards,
>                 Istvan

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