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Attach PC to Domain Over a Checkpoint VPN Connection

Posted on 2009-05-13
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I can connect to our LAN through a Checkpoint VPN client but I can't attach the PC to the domain. The VPN server is located at a data center where I have no control. It also appears that I can't change settings on the Checkpoint client. Our domain controllers are located at our corporate office and they are connected to the third party data center via a dedicated T-1 (the data center is where the VPN is handled.) I can RDP into the DC using the local IP once connected through the VPN.
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Question by:jdcreece
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Author Comment

by:jdcreece
ID: 24376398
The client OS is Vista Business. The DC is 2003.
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Author Comment

by:jdcreece
ID: 24376582
I guess I'll try installing WINS on the DC.
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Author Comment

by:jdcreece
ID: 24377793
Installed WINS, but still no love.
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Accepted Solution

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Rob Williams earned 2000 total points
ID: 24387628
You will only be able to joint the domain if:
-there is only one functional network adapter (i.e if a second such as a wireless disable it)
-the PC points ONLY to the DNS server of the domain to which you are connecting for DNS under the TCP/IP properties (i.e. a local or ISP even as an alternate will cause this to fail)
-the domain suffix, such as mydomain.local, is added to the advanced DNS tab of the network adapter's TCP/IP properties
-WINS/NetBIOS is not really used for joining a domain, is is DNS based due to active directory

Having said that #1 & 2 above are usually changed on the Virtual/VPN adapter. I am not familiar with the CheckPoint client but this may not be possible. If so I would try on the primary network adapter and see how you make out.
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Expert Comment

by:Rob Williams
ID: 24512384
Thanks jdcreece.
Cheers!
--Rob
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