Go Back   TechArena Community > Technical Support > Computer Help > Windows Server > Windows Server Help
Become a Member!
Forgot your username/password?
Register Tags Active Topics RSS Search Mark Forums Read

Sponsored Links



Duplicate PTR records in reverse lookup zone

Windows Server Help


Reply
 
Thread Tools Search this Thread
  #1  
Old 05-11-2008
TSAM
 
Posts: n/a
Duplicate PTR records in reverse lookup zone

Hello,

We run Windows 2003 domain with AD integrated DNS. We run DHCP server for
our clients.

We get duplicate entries for dynamic updated clients in the reverse lookup
zone. Our DHCP server settings is as follows:

1. Enable DNS dynamic updates according to the settings below:
2. Always dynamically update DNS A and PTR reecords
3.Discard A and PTR records when lease is deleted
4.Dynamically update DNS A and PTR records for DHCP clients ..... NT4.0
.....

Our forward lookup zones don't have any duplicates. How could I avoid
duplicate PTR records in our reverse lookup zone for DHCP subnet.

TIA

Reply With Quote
  #2  
Old 05-11-2008
Meinolf Weber
 
Posts: n/a
Re: Duplicate PTR records in reverse lookup zone

Hello TSAM,

Check out this one for updating DNS:
http://technet.microsoft.com/en-us/l.../cc787034.aspx

Or you can also configure aging/scavenging on the zone properties general
tab.

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


> Hello,
>
> We run Windows 2003 domain with AD integrated DNS. We run DHCP server
> for our clients.
>
> We get duplicate entries for dynamic updated clients in the reverse
> lookup zone. Our DHCP server settings is as follows:
>
> 1. Enable DNS dynamic updates according to the settings below:
> 2. Always dynamically update DNS A and PTR reecords
> 3.Discard A and PTR records when lease is deleted
> 4.Dynamically update DNS A and PTR records for DHCP clients .....
> NT4.0
> ....
> Our forward lookup zones don't have any duplicates. How could I avoid
> duplicate PTR records in our reverse lookup zone for DHCP subnet.
>
> TIA
>



Reply With Quote
  #3  
Old 05-11-2008
TSAM
 
Posts: n/a
Re: Duplicate PTR records in reverse lookup zone

Thanks.

I never been a fan nor I trusted scavenging to be honest. But why are we
seeing duplicate PTR's in reverse lookup zone and how to eliminate this
without using scavenging?

TIA

"Meinolf Weber" wrote:

> Hello TSAM,
>
> Check out this one for updating DNS:
> http://technet.microsoft.com/en-us/l.../cc787034.aspx
>
> Or you can also configure aging/scavenging on the zone properties general
> tab.
>
> Best regards
>
> Meinolf Weber
> Disclaimer: This posting is provided "AS IS" with no warranties, and confers
> no rights.
> ** Please do NOT email, only reply to Newsgroups
> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
>
>
> > Hello,
> >
> > We run Windows 2003 domain with AD integrated DNS. We run DHCP server
> > for our clients.
> >
> > We get duplicate entries for dynamic updated clients in the reverse
> > lookup zone. Our DHCP server settings is as follows:
> >
> > 1. Enable DNS dynamic updates according to the settings below:
> > 2. Always dynamically update DNS A and PTR reecords
> > 3.Discard A and PTR records when lease is deleted
> > 4.Dynamically update DNS A and PTR records for DHCP clients .....
> > NT4.0
> > ....
> > Our forward lookup zones don't have any duplicates. How could I avoid
> > duplicate PTR records in our reverse lookup zone for DHCP subnet.
> >
> > TIA
> >

>
>
>

Reply With Quote
  #4  
Old 05-11-2008
Meinolf Weber
 
Posts: n/a
Re: Duplicate PTR records in reverse lookup zone

Hello TSAM,

If a user press power off button the client can not correctly unregister
itself for example.

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


> Thanks.
>
> I never been a fan nor I trusted scavenging to be honest. But why are
> we seeing duplicate PTR's in reverse lookup zone and how to eliminate
> this without using scavenging?
>
> TIA
>
> "Meinolf Weber" wrote:
>
>> Hello TSAM,
>>
>> Check out this one for updating DNS:
>> http://technet.microsoft.com/en-us/l.../cc787034.aspx
>> Or you can also configure aging/scavenging on the zone properties
>> general tab.
>>
>> Best regards
>>
>> Meinolf Weber
>> Disclaimer: This posting is provided "AS IS" with no warranties, and
>> confers
>> no rights.
>> ** Please do NOT email, only reply to Newsgroups
>> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
>>> Hello,
>>>
>>> We run Windows 2003 domain with AD integrated DNS. We run DHCP
>>> server for our clients.
>>>
>>> We get duplicate entries for dynamic updated clients in the reverse
>>> lookup zone. Our DHCP server settings is as follows:
>>>
>>> 1. Enable DNS dynamic updates according to the settings below:
>>> 2. Always dynamically update DNS A and PTR reecords
>>> 3.Discard A and PTR records when lease is deleted
>>> 4.Dynamically update DNS A and PTR records for DHCP clients .....
>>> NT4.0
>>> ....
>>> Our forward lookup zones don't have any duplicates. How could I
>>> avoid
>>> duplicate PTR records in our reverse lookup zone for DHCP subnet.
>>> TIA
>>>



Reply With Quote
  #5  
Old 13-11-2008
A, Deji
 
Posts: n/a
Re: Duplicate PTR records in reverse lookup zone

Well, you better start loving scavenging because it is designed to do
exactly what you are looking to do.

Deji
"TSAM" <TSAM@discussions.microsoft.com> wrote in message
news:A7A3B918-46AF-43D7-B13F-E1A3418A4FE0@microsoft.com...
> Thanks.
>
> I never been a fan nor I trusted scavenging to be honest. But why are we
> seeing duplicate PTR's in reverse lookup zone and how to eliminate this
> without using scavenging?
>
> TIA
>
> "Meinolf Weber" wrote:
>
>> Hello TSAM,
>>
>> Check out this one for updating DNS:
>> http://technet.microsoft.com/en-us/l.../cc787034.aspx
>>
>> Or you can also configure aging/scavenging on the zone properties general
>> tab.
>>
>> Best regards
>>
>> Meinolf Weber
>> Disclaimer: This posting is provided "AS IS" with no warranties, and
>> confers
>> no rights.
>> ** Please do NOT email, only reply to Newsgroups
>> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
>>
>>
>> > Hello,
>> >
>> > We run Windows 2003 domain with AD integrated DNS. We run DHCP server
>> > for our clients.
>> >
>> > We get duplicate entries for dynamic updated clients in the reverse
>> > lookup zone. Our DHCP server settings is as follows:
>> >
>> > 1. Enable DNS dynamic updates according to the settings below:
>> > 2. Always dynamically update DNS A and PTR reecords
>> > 3.Discard A and PTR records when lease is deleted
>> > 4.Dynamically update DNS A and PTR records for DHCP clients .....
>> > NT4.0
>> > ....
>> > Our forward lookup zones don't have any duplicates. How could I avoid
>> > duplicate PTR records in our reverse lookup zone for DHCP subnet.
>> >
>> > TIA
>> >

>>
>>
>>


Reply With Quote
Reply

  TechArena Community > Technical Support > Computer Help > Windows Server > Windows Server Help
Tags: , , , , ,



Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads for: "Duplicate PTR records in reverse lookup zone"
Thread Thread Starter Forum Replies Last Post
Reverse Phone Lookup Tapasranjan Technology & Internet 5 07-09-2010 08:26 PM
Free reverse DNS lookup service. Shaan12 Technology & Internet 4 21-12-2009 11:03 PM
How to do reverse IP lookup in Windows XP Common Networking & Security 3 20-08-2009 07:35 PM
Reverse lookup a SID Kool Active Directory 1 20-07-2009 10:53 PM
Removing reverse lookup ac908 Networking & Security 2 17-11-2008 12:07 PM


All times are GMT +5.5. The time now is 03:43 PM.