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DNS conditional forwarding [message #156148] Wed, 10 June 2009 20:45 Go to next message
aconti  is currently offline aconti  United States
Messages: 113
Registered: August 2009
Senior Member
Hello, if I have a headquarter and a branch office which host active
directory for example headq.test.com and bra1.test.com and I use
conditional forwarding to forward all bra1.test.com queries to the
branch office dns server and vice versa how will I be able to browse the
remote internal network since internal computers will still have an ip
address of 192.168...... and not external ips

Thank you


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Re: DNS conditional forwarding [message #156149 is a reply to message #156148] Wed, 10 June 2009 21:47 Go to previous messageGo to next message
aceman  is currently offline aceman  United States
Messages: 5816
Registered: July 2009
Senior Member
"aconti" <aconti.3tljnd@DoNotSpam.com> wrote in message
news:aconti.3tljnd@DoNotSpam.com...
>
> Hello, if I have a headquarter and a branch office which host active
> directory for example headq.test.com and bra1.test.com and I use
> conditional forwarding to forward all bra1.test.com queries to the
> branch office dns server and vice versa how will I be able to browse the
> remote internal network since internal computers will still have an ip
> address of 192.168...... and not external ips
>
> Thank you

Browse? You mean network neighborhood?

WINS is the answer. Setup a WINS server. Have all machines configured to use
the WINS server. For DHCP, use Option 044: <WinsServerIpAddress> and 046:
0x8. You can also create a WINS server on each subnet. Create a WINS
partnership between them, and configure the machines in each subnet to use
their appropriate WINS server. The Browser service uses NetBIOS broadcasts
and WINS to populate the browse list.

I remember you've posted in the past. I thought you already had WINS setup,
if I remember correctly?

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Ace

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

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSA Messaging, MCT
Microsoft Certified Trainer
aceman@mvps.RemoveThisPart.org

For urgent issues, you may want to contact Microsoft PSS directly. Please
check http://support.microsoft.com for regional support phone numbers.

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Re: DNS conditional forwarding [message #156172 is a reply to message #156148] Thu, 11 June 2009 07:53 Go to previous messageGo to next message
meiweb(nospam)  is currently offline meiweb(nospam)  Germany
Messages: 1307
Registered: July 2009
Senior Member
Hello aconti,

For network browsing you have to configure a WINS server and configure the
clients to use it.

Here you have a full overview about WINS (expand the "+" in the left pane):
http://technet.microsoft.com/en-us/library/cc739183(WS.10).aspx

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
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> Hello, if I have a headquarter and a branch office which host active
> directory for example headq.test.com and bra1.test.com and I use
> conditional forwarding to forward all bra1.test.com queries to the
> branch office dns server and vice versa how will I be able to browse
> the remote internal network since internal computers will still have
> an ip address of 192.168...... and not external ips
>
> Thank you
>
> http://forums.techarena.in
>
Re: DNS conditional forwarding [message #156244 is a reply to message #156148] Fri, 12 June 2009 06:36 Go to previous messageGo to next message
pbbergs  is currently offline pbbergs  United States
Messages: 1024
Registered: July 2009
Senior Member
Like others have already pointed out, this uses a NetBios Name Server,
Microsoft's is WINs.

--
Paul Bergson
MVP - Directory Services
MCTS, MCT, MCSE, MCSA, Security+, BS CSci
2008, 2003, 2000 (Early Achiever), NT4

http://www.pbbergs.com

Please no e-mails, any questions should be posted in the NewsGroup This
posting is provided "AS IS" with no warranties, and confers no rights.

"aconti" <aconti.3tljnd@DoNotSpam.com> wrote in message
news:aconti.3tljnd@DoNotSpam.com...
>
> Hello, if I have a headquarter and a branch office which host active
> directory for example headq.test.com and bra1.test.com and I use
> conditional forwarding to forward all bra1.test.com queries to the
> branch office dns server and vice versa how will I be able to browse the
> remote internal network since internal computers will still have an ip
> address of 192.168...... and not external ips
>
> Thank you
>
>
> --
> aconti
> ------------------------------------------------------------ ------------
> aconti's Profile: http://forums.techarena.in/members/73272.htm
> View this thread: http://forums.techarena.in/active-directory/1195459.htm
>
> http://forums.techarena.in
>
Re: DNS conditional forwarding [message #156275 is a reply to message #156244] Fri, 12 June 2009 20:33 Go to previous messageGo to next message
aconti  is currently offline aconti  United States
Messages: 113
Registered: August 2009
Senior Member
ok so if I just configure all the clients to use the same Wins Server
through the DHCP server options then both networks on both sides will be
able to browse eachother. I tought that Wins was an old system and it is
not being used however I was wrong then !


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Re: DNS conditional forwarding [message #156277 is a reply to message #156275] Fri, 12 June 2009 22:26 Go to previous messageGo to next message
aceman  is currently offline aceman  United States
Messages: 5816
Registered: July 2009
Senior Member
"aconti" <aconti.3tp8zd@DoNotSpam.com> wrote in message
news:aconti.3tp8zd@DoNotSpam.com...
>
> ok so if I just configure all the clients to use the same Wins Server
> through the DHCP server options then both networks on both sides will be
> able to browse eachother. I tought that Wins was an old system and it is
> not being used however I was wrong then !

WINS has its functions and features that differ from DNS. WINS is not an old
'system' but rather a service. In the terms of being 'old,' it's been around
since the 90's, and it even has its own RFC by the IEEE defining WINS as a
NetBIOS name server (NBNS), which also defines *nix NBNS servers.

WINS is a dynamic NetBIOS name database. DNS is a dynamic hierarchal
hostname database. The hierarchy starts with the TLD, then the domain name,
then a host name, etc. NetBIOS is not hierarchal, but a flat namespace
developed back in the 80's to identify machines before the importance and
popularity of hostname support (DNS). The differences are WINS allows to
support legacy and current applications that require NetBIOS name resolution
(SQL, Exchange-Outlook communication for certain functions, Browser serice,
and many others). If WINS is in use, the Microsoft Browser Service will pull
data from it to assemble a browse list. When you click on Network
Neighborhood on any machine, it queries the Master Browser to get the list.
Therefore, if all machines in an infrastructure ares using WINS, and they
all successfully register their NetBIOS name and NetBIOS services into the
WINS database, the Browser service will pull that data, and then you will
see them in Network Neighborhood.

Unfortunately, the Browser Service does not use DNS.

I hope that helps to explain why WINS is needed in the scenario you've
described.

Ace
Re: DNS conditional forwarding [message #156308 is a reply to message #156277] Sun, 14 June 2009 05:34 Go to previous messageGo to next message
aconti  is currently offline aconti  United States
Messages: 113
Registered: August 2009
Senior Member
Thank you ACE very helpful as usual


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Re: DNS conditional forwarding [message #156311 is a reply to message #156308] Sun, 14 June 2009 09:42 Go to previous message
aceman  is currently offline aceman  United States
Messages: 5816
Registered: July 2009
Senior Member
"aconti" <aconti.3trsnb@DoNotSpam.com> wrote in message
news:aconti.3trsnb@DoNotSpam.com...
>
> Thank you ACE very helpful as usual


You are welcome, Aconti!

Ace
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