DNS fails to resolve from another site

Hi,
I'm having a very strange problem at my network. I have four site
separated by WAN links. The main site contains one Exchange Server, A
and DNS which the computers connect to download e-mails. All the site
have one DNS Server with integrated AD zones.
Sometimes some computers of the sites which don't have Exchange Serve
can't access the the server and when I ping that, they are not able t
solve the Exchange Server name even with DNS suffix correctl
configured in the network connection. So that the problem b
temporarily solved, its necessary to use the command ipconfi
/registerdns to register manually the connection in DNS. By the way,
can't see logic in have to register the connection, because that is no
necessary so that names contained in the zone DNS can be solved. I'
very thankful if someone can help

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Hello,
do you do the /registerdns on the exchange server ?
Do you have activated the scavenge dns to remove old entries ?
Is the dns client service started on the exchange ?


--
Cordialement,
Mathieu CHATEAU
http://lordoftheping.blogspot.com


"DCabral" <(E-Mail Removed)> wrote in message
news(E-Mail Removed)...
>
> Hi,
> I'm having a very strange problem at my network. I have four sites
> separated by WAN links. The main site contains one Exchange Server, AD
> and DNS which the computers connect to download e-mails. All the sites
> have one DNS Server with integrated AD zones.
> Sometimes some computers of the sites which don't have Exchange Server
> can't access the the server and when I ping that, they are not able to
> solve the Exchange Server name even with DNS suffix correctly
> configured in the network connection. So that the problem be
> temporarily solved, its necessary to use the command ipconfig
> /registerdns to register manually the connection in DNS. By the way, I
> can't see logic in have to register the connection, because that is not
> necessary so that names contained in the zone DNS can be solved. I'm
> very thankful if someone can help.
>
>
> --
> DCabral
> ------------------------------------------------------------------------
> DCabral's Profile: http://forums.techarena.in/member.php?userid=29548
> View this thread: http://forums.techarena.in/showthread.php?t=802956
>
> http://forums.techarena.in
>

Hi Mathieu CHATEAU,
I need to do /registerdns on clients and scavenge stale records is not
enabled on DNS. The Exchange Server have the DNS client service
started. I can't to ping any computer of the other sites until I use
the ipconfig /registerdns on the clients with problem. I took a look at
the event viewer on the clients and DNS server but nothing is wrong,
remebering that I have DNS server on each site and it's not separated
of the client by a firewall.
Thanks for you reply

DCabral


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when you have the trouble,

nslookup myexchange.mydomain.com works ?

You workstation is in dhcp, right ?



--
Cordialement,
Mathieu CHATEAU
http://lordoftheping.blogspot.com


"DCabral" <(E-Mail Removed)> wrote in message
news(E-Mail Removed)...
>
> Hi Mathieu CHATEAU,
> I need to do /registerdns on clients and scavenge stale records is not
> enabled on DNS. The Exchange Server have the DNS client service
> started. I can't to ping any computer of the other sites until I use
> the ipconfig /registerdns on the clients with problem. I took a look at
> the event viewer on the clients and DNS server but nothing is wrong,
> remebering that I have DNS server on each site and it's not separated
> of the client by a firewall.
> Thanks for you reply
>
> DCabral
>
>
> --
> DCabral
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> DCabral's Profile: http://forums.techarena.in/member.php?userid=29548
> View this thread: http://forums.techarena.in/showthread.php?t=802956
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> http://forums.techarena.in
>

On Aug 20, 5:54 pm, "Mathieu CHATEAU" <gollum...@free.fr> wrote:
> when you have the trouble,
>
> nslookup myexchange.mydomain.com works ?
>
> You workstation is in dhcp, right ?
>
> --
> Cordialement,
> Mathieu CHATEAUhttp://lordoftheping.blogspot.com
>
> "DCabral" <DCabral.2vl...@DoNotSpam.com> wrote in message
>
> news(E-Mail Removed)...
>
>
>
>
>
> > Hi Mathieu CHATEAU,
> > I need to do /registerdns on clients and scavenge stale records is not
> > enabled on DNS. The Exchange Server have the DNS client service
> > started. I can't to ping any computer of the other sites until I use
> > the ipconfig /registerdns on the clients with problem. I took a look at
> > the event viewer on the clients and DNS server but nothing is wrong,
> > remebering that I have DNS server on each site and it's not separated
> > of the client by a firewall.
> > Thanks for you reply
>
> > DCabral
>
> > --
> > DCabral
> > ------------------------------------------------------------------------
> > DCabral's Profile:http://forums.techarena.in/member.php?userid=29548
> > View this thread:http://forums.techarena.in/showthread.php?t=802956
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> >http://forums.techarena.in- Hide quoted text -
>
> - Show quoted text -

Do you find that it works when you have manually entered an ARP entry?


David
http://www.itcontractors.org
Knowledge...shared

If it was a layer 2 problem, it wouldn't work when he does an ipconfig
/registerdns.

But it may be a dns cache problem instead.



--
Cordialement,
Mathieu CHATEAU
http://lordoftheping.blogspot.com


"Curious_user" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) oups.com...
> On Aug 20, 5:54 pm, "Mathieu CHATEAU" <gollum...@free.fr> wrote:
>> when you have the trouble,
>>
>> nslookup myexchange.mydomain.com works ?
>>
>> You workstation is in dhcp, right ?
>>
>> --
>> Cordialement,
>> Mathieu CHATEAUhttp://lordoftheping.blogspot.com
>>
>> "DCabral" <DCabral.2vl...@DoNotSpam.com> wrote in message
>>
>> news(E-Mail Removed)...
>>
>>
>>
>>
>>
>> > Hi Mathieu CHATEAU,
>> > I need to do /registerdns on clients and scavenge stale records is not
>> > enabled on DNS. The Exchange Server have the DNS client service
>> > started. I can't to ping any computer of the other sites until I use
>> > the ipconfig /registerdns on the clients with problem. I took a look at
>> > the event viewer on the clients and DNS server but nothing is wrong,
>> > remebering that I have DNS server on each site and it's not separated
>> > of the client by a firewall.
>> > Thanks for you reply
>>
>> > DCabral
>>
>> > --
>> > DCabral
>> > ------------------------------------------------------------------------
>> > DCabral's Profile:http://forums.techarena.in/member.php?userid=29548
>> > View this thread:http://forums.techarena.in/showthread.php?t=802956
>>
>> >http://forums.techarena.in- Hide quoted text -
>>
>> - Show quoted text -
>
> Do you find that it works when you have manually entered an ARP entry?
>
>
> David
> http://www.itcontractors.org
> Knowledge...shared
>

Hi,
When I have the trouble, nslookup to myexchange.mydomain.com from the
clients does not works and I can't even ping the exchange or other
servers on the remote site. I even did flush DNS cache but have no
sucess.

Thanks


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any eventlog error ?

nslookup on www.google.com works from the client at the same time, or does
it loss all dns resolution ?




--
Cordialement,
Mathieu CHATEAU
http://lordoftheping.blogspot.com


"DCabral" <(E-Mail Removed)> wrote in message
news(E-Mail Removed)...
>
> Hi,
> When I have the trouble, nslookup to myexchange.mydomain.com from the
> clients does not works and I can't even ping the exchange or other
> servers on the remote site. I even did flush DNS cache but have no
> sucess.
>
> Thanks
>
>
> --
> DCabral
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> View this thread: http://forums.techarena.in/showthread.php?t=802956
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>

Hi,
I didn't find event log error and nslookup to externals address work
fine. I did see that reverse lookup zones works fine as well. I thin
that is a Forward lookup zone trouble.

Thank

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