DHCP not updating ptr records

[Bob]

Greetings,

We recently upgraded from winNT4 to win2000 AD. The DHCP,
DNS and WINS services were also migrated to win2000 and we
started to noticing that reverse records were not being
removed from DNS after a machine leaves the domain or is
inactive for an extended period of time.


Question1 -
DHCP is configured to automatically update reservations in
DNS. Scavenging is enabled, but does not remove the
inactive reverse records. The following options are
configured:

DHCP, checked- auto update DHCP client info in DNS
DHCP, dotted- always update DNS
DHCP, checked- discard forward lookups when lease expires
DHCP, checked- enable update for DNS clients that do not..
DNS- is also enabled for dynamic updates
DNS- configured for scavenging at zone and in server
properties

Is there a configuration option that could have been
missed that would result in reverse records not being
removed?


Question2 -
Is there a way to grant the head technician in a
departmental OU control over specific zones in DHCP, but
not other zone?

Thanks for any responses.

 

[Chris Edson [MSFT]]

DNS records are only removed by the DHCP Server when the lease records are
actually deleted, which can be up to 5 hours after expiry, by default (4
hour grace period, plus up to 60 minute between database cleanups).

As for your side question, no there is no way to do this on a single DHCP
Server. If you are using multiple DHCP Servers, then you can give one user
DHCP Admin rights on one server, and another user rights on another
server...

-Chris
--
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Chris Edson
(e-mail address removed)

This posting is provided "AS IS" with
no warranties, and confers no rights.
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