I suspect that this is happening because MS DHCP Server forgets
(at least sometimes) to clean up the PTR records when the lease expires
and is not renewed. It's the DHCP Server's responsibility to clean up the
records and not the DNS Server. The DNS Server doesn't know and
should not be expected to be responsible for this.
Danny
At 10:29 AM 11/12/01, Barry Finkel wrote:
>Richard Phillips <richphillips at lucent.com> wrote:
>
> > Does anyone have any recommendations/Best Practices regarding the Aging &
> > Scavenging of W2K DNS records??
>
>Here are my personal views on the matter. I do not really trust the MS
>W2k DNS product, so I am advising my clients that they should keep
>their DNS zones on my BIND master, and only keep the dynamic SRV
>records (i.e., the four "_" zones) on the W2k DNS server. This is true
>for most of my clients. There is one client who wanted his forward
>zone and his five reverse zones on the MS W2k DNS server; most of his
>updates come from his MS DHCP server. In the five reverse zones I see
>addresses that have two, three, or four associated names. Some of
>these are not fully qualified (e.g., cmtxyz.) In most cases, these
>one-level names also have fully qualified names (cmtxyz.cmt.anl.gov.)
>registered. Here is a sample of one address in one of the reverse
>zones:
>
> 133 900 IN PTR cmtw52x.cmt.anl.gov.
> 900 IN PTR cmtw52x.
> 900 IN PTR cmtw52.cmt.anl.gov.
>
>We have not done research as to how these various names are being
>generated. These multiple registrations do not seem to cause any
>problems, so it is not a high priority here to remove the bad entries.
>
>To get back to the topic at hand, I have not enabled MS DNS scavenging.
>I, as well as other responders, do not see why it should be needed if
>the DHCP server and DDNS are working correctly.
>----------------------------------------------------------------------
>Barry S. Finkel
>Electronics and Computing Technologies Division
>Argonne National Laboratory Phone: +1 (630) 252-7277
>9700 South Cass Avenue Facsimile:+1 (630) 252-9689
>Building 221, Room B236 Internet: BSFinkel at anl.gov
>Argonne, IL 60439-4844 IBMMAIL: I1004994