DNS issues for machines with DHCP reservations.

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Guest

Guest
Archived from groups: microsoft.public.win2000.dns (More info?)

We are running MS DNS in AD integrated mode. We have
some printers and Unix boxes that we have setup DHCP
reservations for. Sometimes when one of these printers
or Unix boxes is rebooted the DNS entry is lost? Anyone
have any clue? This does not happen every time and
usually a second boot will bring the entry back. The DNS
tab in DHCP is setup as follows.

Enable DNS dynamic updates is turned on.
Always dynamically update DNS A and PTR records is
selected.

Discard A and PTR records when lease expires is selected.

Dynamically update DNS for clients that do not request is
selected.

Please help!
 
G

Guest

Guest
Archived from groups: microsoft.public.win2000.dns (More info?)

In news:598601c48167$6b83f080$a301280a@phx.gbl,
Tweezer <TweezerDNS@yahoo.com> wrote their comments
Then Kevin replied below:
> We are running MS DNS in AD integrated mode. We have
> some printers and Unix boxes that we have setup DHCP
> reservations for. Sometimes when one of these printers
> or Unix boxes is rebooted the DNS entry is lost? Anyone
> have any clue? This does not happen every time and
> usually a second boot will bring the entry back. The DNS
> tab in DHCP is setup as follows.
>
> Enable DNS dynamic updates is turned on.
> Always dynamically update DNS A and PTR records is
> selected.
>
> Discard A and PTR records when lease expires is selected.
>
> Dynamically update DNS for clients that do not request is
> selected.

Set DHCP to "Always update DNS"



--
Best regards,
Kevin D4 Dad Goodknecht Sr. [MVP]
Hope This Helps
================================================
--
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================================================
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================================================
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================================================
 
G

Guest

Guest
Archived from groups: microsoft.public.win2000.dns (More info?)

This is set as I stated in the original post. Any other ideas?

"Kevin D. Goodknecht Sr. [MVP]" wrote:

> In news:598601c48167$6b83f080$a301280a@phx.gbl,
> Tweezer <TweezerDNS@yahoo.com> wrote their comments
> Then Kevin replied below:
> > We are running MS DNS in AD integrated mode. We have
> > some printers and Unix boxes that we have setup DHCP
> > reservations for. Sometimes when one of these printers
> > or Unix boxes is rebooted the DNS entry is lost? Anyone
> > have any clue? This does not happen every time and
> > usually a second boot will bring the entry back. The DNS
> > tab in DHCP is setup as follows.
> >
> > Enable DNS dynamic updates is turned on.
> > Always dynamically update DNS A and PTR records is
> > selected.
> >
> > Discard A and PTR records when lease expires is selected.
> >
> > Dynamically update DNS for clients that do not request is
> > selected.
>
> Set DHCP to "Always update DNS"
>
>
>
> --
> Best regards,
> Kevin D4 Dad Goodknecht Sr. [MVP]
> Hope This Helps
> ================================================
> --
> When responding to posts, please "Reply to Group"
> via your newsreader so that others may learn and
> benefit from your issue, to respond directly to
> me remove the nospam. from my email address.
> ================================================
> http://www.lonestaramerica.com/
> ================================================
> Use Outlook Express?... Get OE_Quotefix:
> It will strip signature out and more
> http://home.in.tum.de/~jain/software/oe-quotefix/
> ================================================
> Keep a back up of your OE settings and folders
> with OEBackup:
> http://www.oehelp.com/OEBackup/Default.aspx
> ================================================
>
>
>
 
G

Guest

Guest
Archived from groups: microsoft.public.win2000.dns (More info?)

In news:CCBD4B4F-0C52-4E98-8743-BAB043592063@microsoft.com,
Tweezer <Tweezer@discussions.microsoft.com> made a post then I commented
below
> This is set as I stated in the original post. Any other ideas?

Just want to clarify one thing and establish that your router isn't offering
DHCP as well? This comes up once in awhile when someone has a Linksys or
Netgear or such, and is running DHCP on it and it will conflict. One way to
tell, if you're not sure, is to find out who the DHCP server is that gave it
config when you get the wrong settings.

Other than that, how long is your lease?
Options set as a Scope or Server Level?
Win2k or Win2k3? What SP level?
Maybe a netmon capture to determine what's going on may help.

--
Regards,
Ace

Please direct all replies ONLY to the Microsoft public newsgroups
so all can benefit.

This posting is provided "AS-IS" with no warranties or guarantees
and confers no rights.

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
Microsoft Windows MVP - Windows Server - Directory Services

Security Is Like An Onion, It Has Layers
HAM AND EGGS: A day's work for a chicken;
A lifetime commitment for a pig.
--
=================================
 
G

Guest

Guest
Archived from groups: microsoft.public.win2000.dns (More info?)

The DHCP/DNS Server is a fully patched Win 2K SP4 box. There are no other
DHCP servers on the network. options are set at the server level except the
gateway which is set at the scope level. Lease is the default 8 days. It's
weird, because the client gets an IP and all of the correct settings, but the
DNS A record disappears. This will occur raraly since there are typically
months between reboots of the client.

"Ace Fekay [MVP]" wrote:

> In news:CCBD4B4F-0C52-4E98-8743-BAB043592063@microsoft.com,
> Tweezer <Tweezer@discussions.microsoft.com> made a post then I commented
> below
> > This is set as I stated in the original post. Any other ideas?
>
> Just want to clarify one thing and establish that your router isn't offering
> DHCP as well? This comes up once in awhile when someone has a Linksys or
> Netgear or such, and is running DHCP on it and it will conflict. One way to
> tell, if you're not sure, is to find out who the DHCP server is that gave it
> config when you get the wrong settings.
>
> Other than that, how long is your lease?
> Options set as a Scope or Server Level?
> Win2k or Win2k3? What SP level?
> Maybe a netmon capture to determine what's going on may help.
>
> --
> Regards,
> Ace
>
> Please direct all replies ONLY to the Microsoft public newsgroups
> so all can benefit.
>
> This posting is provided "AS-IS" with no warranties or guarantees
> and confers no rights.
>
> Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
> Microsoft Windows MVP - Windows Server - Directory Services
>
> Security Is Like An Onion, It Has Layers
> HAM AND EGGS: A day's work for a chicken;
> A lifetime commitment for a pig.
> --
> =================================
>
>
>
 
G

Guest

Guest
Archived from groups: microsoft.public.win2000.dns (More info?)

In news:CCBD4B4F-0C52-4E98-8743-BAB043592063@microsoft.com,
Tweezer <Tweezer@discussions.microsoft.com> wrote their comments
Then Kevin replied below:
> This is set as I stated in the original post. Any other
> ideas?

What are the DNS servers listed in TCP/IP properties on the DHCP server?

DHCP sends the updates to the DNS servers configured in TCP/IP properties
for network connections active on the server DHCP service is on.




--
Best regards,
Kevin D4 Dad Goodknecht Sr. [MVP]
Hope This Helps
================================================
--
When responding to posts, please "Reply to Group"
via your newsreader so that others may learn and
benefit from your issue, to respond directly to
me remove the nospam. from my email address.
================================================
http://www.lonestaramerica.com/
================================================
Use Outlook Express?... Get OE_Quotefix:
It will strip signature out and more
http://home.in.tum.de/~jain/software/oe-quotefix/
================================================
Keep a back up of your OE settings and folders
with OEBackup:
http://www.oehelp.com/OEBackup/Default.aspx
================================================
 
G

Guest

Guest
Archived from groups: microsoft.public.win2000.dns (More info?)

In news:98CFCD72-1F18-49FD-BF85-F85B951F7ECF@microsoft.com,
Tweezer <Tweezer@discussions.microsoft.com> made a post then I commented
below
> The DHCP/DNS Server is a fully patched Win 2K SP4 box. There are no
> other DHCP servers on the network. options are set at the server
> level except the gateway which is set at the scope level. Lease is
> the default 8 days. It's weird, because the client gets an IP and
> all of the correct settings, but the DNS A record disappears. This
> will occur raraly since there are typically months between reboots of
> the client.


Interesting. The only other thing is Kevin's latest question about what DNS
servers is the DHCP server itself using?

--
Regards,
Ace

Please direct all replies ONLY to the Microsoft public newsgroups
so all can benefit.

This posting is provided "AS-IS" with no warranties or guarantees
and confers no rights.

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
Microsoft Windows MVP - Windows Server - Directory Services

Security Is Like An Onion, It Has Layers
HAM AND EGGS: A day's work for a chicken;
A lifetime commitment for a pig.
--
=================================
 
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