Archived from groups: microsoft.public.win2000.dns (
More info?)
"Ace Fekay [MVP]"
<PleaseSubstituteMyActualFirstName&LastNameHere@hotmail.com> wrote in
message news:%23uXDqd29EHA.2608@TK2MSFTNGP10.phx.gbl...
> In news:qnyEd.77332$dv1.16522@edtnps89,
> mcaissie <mcaissie@nospam.sympatico.ca> made a post then I commented below
>> "Ace Fekay [MVP]"
>> <PleaseSubstituteMyActualFirstName&LastNameHere@hotmail.com> wrote in
>> message news:Oaa3vWT9EHA.2196@TK2MSFTNGP11.phx.gbl...
>>> In news:7RyDd.53684$dv1.2583@edtnps89,
>>> mcaissie <mcaissie@nospam.sympatico.ca> made a post then I commented
>>> below
>>>>> Hi,
>>>>>
>>>>> We have a couple of sites running DDNS ( Win2k server + Win2k
>>>>> clients) . Clients are embeded systems and have a maintenance
>>>>> reboot every night .
>>>>>
>>>>> In the morning we can see that aroud 20% of the DNS entries have
>>>>> disapeared. All the missing entries in the DNS get their DHCP
>>>>> lease within a window of 30 seconds .
>>>>>
>>>>> I think that once the server opens the database to process an
>>>>> update it cannot buffer
>>>>> the next request and for some reason it delete the entry without
>>>>> renewing it.
>>>>>
>>>>> For now the workaround is to run an ipconfig/registerdns at a
>>>>> random intervall
>>>>> following the reboot , but i would prefer to get rid of this and
>>>>> make it working
>>>>> as it should.
>>>>>
>>>>> Anyone have a hint to resolve this ?
>>>>>
>>>>> Thanks
>>>
>>
>>
>>> Are all DNS zones on a DC all DDNS?
>>
>> Hi Ace,
>>
>> Not a DC , a standalone server . We are in a workgroup environment ,
>> no AD. The server runs DHCP and DDNS , there is only one zone , and
>> clients registers
>> in that zone .
>>
>> On the client , the " Use this connection's DNS suffix in DNS
>> registration" is checked.
>> The domain name is given by DHCP . The config works , it's only
>> when there is a lot
>> of requests in a short period of time that we lost DNS entries.
>>
>>
>>> Is this one domain?
>> yes , exactly it's a sub-domain ( site.domain.com ) . The DNS
>> authoritative for the zone
>> "domain.com" have a delegation for "site" on this DNS server
>>
>>
>>> Do the clients just have your internal DNS in IP properties, or is
>>> there also an external DNS?
>>
>> The DNS mentionned above is also in the IP configuration of the
>> clients.
>>
>> The environment is
>>
>> NOC:
>> A dns server DNS1 authoritative for domain.com with a delegation
>> for site.domain.com on
>> dns2
>>
>> SITE:
>> A dns server DNS2 authoritative for site.domain.com and accepting
>> dynamic updates
>> A DHCP server updating dns for site.domain.com
>> Clients getting their address and domain name from DHCP -
>> client.site.domain.com
>> Clients have DNS2 and DNS1 configured in IP configuration
>
>
>
>
> Thanks for the update.
Thanks to you
> I think if your clients are pointing to the parent server and registration
> is trying to go into the child (delegated) server, that may cause a lag.
> Is that how you have it set up?
>
ok , here is something new to me .
On the DHCP server the first DNS is DNS2 - this is the authoritative for
site.domain.com,
and the second DNS is DNS1 - authoritative for domain.com.
( by the way DNS1 and DNS2 are located in different location and linked
through a permanent VPN)
The clients receive the same config through scope options 006 DNS Server =
DNS2,DNS1
(they also receive scope options 015 DNS Domain Name = site.domain.com)
My goal is for the DHCP to register names on DNS2 .
Are you saying that the DHCP may try to register on DNS1 if DNS2 is busy
?
If so, is it possible to avoid this ?
I would like to keep 2 DNS in the configuration to allow internet name
resolution for the clients in case
one server goes down.
And even if there was a lag , it would not explain why the entries disapear.
thanks