Hi,

I would like to first of all give you the idea of the
network...

We have 2 locations which are 6 buildings apart. We have
one office in e.g location A and one in Location B. Both A
& B are in one domain with ADS installed having one file
server, one DNS (ADS integrated), one proxy server (Compaq
task smart) and one 3600 Cisco Rx( for the internet
access). At location B we have a file server (ADS
integrated with A). These two locations have a MPLS VPN
connection between them and also they are on different
subnets.
The users in Location A & B uses the same DNS which is
located in Location A.

THe Problem:

1. The users in A are able to login and have there shared
drives available readily..there is no problem with the
name resolution either..
whereas the users in Location B have trouble loggin
in...WHen one gets logged in using the cached credentials,
you dont have the shared drives..when you type in "set" in
the command prompt to see the logon server, you see the
logonserver as the \\localmachinename..
2.when you try to put a machine into the domain, you get
an error saying " the following error occurred validating
the name "doaminname".This condition may be caused by a
DNS lookup problem. For information about troubleshooting
common DNS pronblems, please see the following microsoft
website:http://go.microsoft.com/fwlink/?Linkid=5171. the
specified domain either does not exist or could not be
contacted."
3. Apart from this if you just do a ping to the DNS at
Location A both the problem above gets rectified, but then
it stays that way only for few minutes.

SO i guess its a DNS issue. Can you guide me on this. What
difference does it make if you dont have a DNS local to a
subnet( as i read through an article which says that a
DNS in each subnet is good). So if you could explain to me
what exactly happens in this situation..Let me tell you
once again, that everythin works well if you have a ping
running to the only DNS at LOcation A (used by A & B both).

Thankyou

In news:1097201c43fd9$b3e97090$(E-Mail Removed),
Deepu p <(E-Mail Removed)> posted their thoughts, then I offered
mine
> Hi,
>
> I would like to first of all give you the idea of the
> network...
>
> We have 2 locations which are 6 buildings apart. We have
> one office in e.g location A and one in Location B. Both A
> & B are in one domain with ADS installed having one file
> server, one DNS (ADS integrated), one proxy server (Compaq
> task smart) and one 3600 Cisco Rx( for the internet
> access). At location B we have a file server (ADS
> integrated with A). These two locations have a MPLS VPN
> connection between them and also they are on different
> subnets.
> The users in Location A & B uses the same DNS which is
> located in Location A.
>
> THe Problem:
>
> 1. The users in A are able to login and have there shared
> drives available readily..there is no problem with the
> name resolution either..
> whereas the users in Location B have trouble loggin
> in...WHen one gets logged in using the cached credentials,
> you dont have the shared drives..when you type in "set" in
> the command prompt to see the logon server, you see the
> logonserver as the \\localmachinename..
> 2.when you try to put a machine into the domain, you get
> an error saying " the following error occurred validating
> the name "doaminname".This condition may be caused by a
> DNS lookup problem. For information about troubleshooting
> common DNS pronblems, please see the following microsoft
> website:http://go.microsoft.com/fwlink/?Linkid=5171. the
> specified domain either does not exist or could not be
> contacted."
> 3. Apart from this if you just do a ping to the DNS at
> Location A both the problem above gets rectified, but then
> it stays that way only for few minutes.
>
> SO i guess its a DNS issue. Can you guide me on this. What
> difference does it make if you dont have a DNS local to a
> subnet( as i read through an article which says that a
> DNS in each subnet is good). So if you could explain to me
> what exactly happens in this situation..Let me tell you
> once again, that everythin works well if you have a ping
> running to the only DNS at LOcation A (used by A & B both).
>
> Thankyou


Whenever you have multiple locations, the VPNs must allow full access
between the locations without any hinderance with ports being blocked. The
VPNs must be a tunnel between the locations. As long as this is true, then
you can assume full domain communication. If DNS is running in both
locations, and there is a DC in both locations, and they are your DNS
servers, then I suggest to use AD INtegrated zones. If I would also suggest
to implement Sites to control replication and logon traffic and make at
least one DC a GC in each Site.

Are you getting any replication or any other errors in your event logs?

--
Regards,
Ace

Please direct all replies to the newsgroup so all can benefit.
This posting is provided "AS-IS" with no warranties and confers no
rights.

Ace Fekay, MCSE 2000, MCSE+I, MCSA, MCT, MVP
Microsoft Windows MVP - Active Directory

HAM AND EGGS: A day's work for a chicken; A lifetime commitment for a
pig. --
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