Limit external Remote Desktop to certain user

September 12, 2011 at 06:57:30
Specs: Server 2003
I have a server, Windows Server 2003 and two NICs.
I have multiple users on our internat LAN accessing the server with RDP
I would like to access the server with RDP from outside using a static IP - but I only want certain users to be able to do this!
Server: NIC1 - 192.168.2.1 / 255.255.248.0
NIC2 - 192.168.1.1 / 255.255.248.0

I've used tscc.exe to set up a new RDP connection - called it EXTERNAL and assigned NIC2 to it.
I created a group on the server and added the required users to it.
Then I added this group in the permissions tab for the EXTERNAL connectio - I also removed the standard Remote Desktop Users group.

Now, if I try to log onto the server with either IP address I get 'RCP Server is not available' - disabling NIC2 cures this.

Can anyone tell me how to fix this??

Many thanks


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#1
September 12, 2011 at 11:57:31
While both NICs do have private ip addresses, I assume, that the server is placed behind a router and you have forwarded RDP port to the servers ip address.

Check, whether you've configured the correct ip address in the forwarding rules in the router.

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#2
September 13, 2011 at 02:54:24
Cheers for the response!

Yes, the server is behind a router. I have an external IP forwarded to NIC2 - it does connect to the server and brings up the login box - but gives the RPC server not available error when I try and log in.


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#3
September 13, 2011 at 07:17:02
Does internal access via RDP to 192.168.1.1 work?

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#4
September 13, 2011 at 08:15:09
No, when both NICs are enabled I get the RPC server error on both - when one is disabled, then RDP works.

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#5
September 13, 2011 at 15:59:08
Check the default gateway settings of both NICs and make sure, that only the external NIC has configured a default gateway.
The internal NIC does not need any default gateway.

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#6
September 14, 2011 at 00:42:45
Thanks.

Done that - 192.168.1.1 has the default gateway set, 192.168.2.1 does not - unfortunatly the RPC server error is still there on bith IPs when I try RDP.


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