How do I allow remote desktop connections through an ISA 2004 Server?

Posted on 2010-01-07
Last Modified: 2013-11-16
We have external clients that need to access their servers which are external to our network. Can someone please provide me with step by step instructions of how to allow remote desktop connections through our ISA server. I am new to ISA, so please be patient with me :-)
Question by:tbush70834
    LVL 51

    Expert Comment

    by:Keith Alabaster
    If you are new to ISA then you really should be getting someone trained up. ISA is not a simple application like Exchange.

    open the ISA gui.
    Select the firewall policy on the left - right-click it and select new - publish a non web server.
    Select the remote desktop/terminal services protocol and select the internal IP address that you want to RDP onto from outside and select EXTERNAL as the listener network.

    on the workstation to be remotely controlled, make sure remote control is enabled from the computer properties.

    On the external router, make sure tcp port 3389 is forwarded to the ISA external IP address.

    Job done
    LVL 6

    Expert Comment

    you have to allow rdp protocol between the clients and the servers

    Author Comment

    Thanks for your help, but I am wanting to remote desktop into an external server through our internal network via ISA. I think what you have stated is to access our server from external. Forgive me if I am wrong with this.
    LVL 51

    Accepted Solution

    Then do it the other way.
    open the ISA gui.
    Select the firewall policy on the left - right-click it and select new - access rule
    Give it a name, select allow
    Select the remote desktop/terminal services protocol
    In the from box, select internal from the list of networks
    In the to box, select external, all users
    Apply the policy

    Author Comment

    Many Thanks for all your help with this.

    Author Closing Comment

    Step by step instructions were great. Many Thanks again
    LVL 51

    Expert Comment

    by:Keith Alabaster
    welcome :)

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