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  1. Guacamole
  2. GUACAMOLE-1236

Guacamole 1.2.0 can not make RDP connection to Windows 2019 Server

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Invalid
    • 1.2.0
    • None
    • RDP
    • None
    • Ubuntu 20.04 Server running Guacamole 1.2.0

    Description

      Found that old Guacamole 0.9.14 server would not establish an RDP to Windows 2019 Server, but was able to connect using Windows RDP client.

      After experimentation on the Windows 2019 Server, I found a Group Policy setting which would allow Guacamole 0.9.14 to make an successful RDP connection.

      Modify Group Policy (for Guacamole 0.9.14)

      Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Service -> Remote Desktop Session Host -> Security -> Require use of specific security layer for remote (RDP) connections - Enable  (and set to policy to negotiate)

       

      Tried with Guacamole 1.2.0 on our new server and to get it to work I had to change the Group Policy

      Modify Group Policy (for Guacamole 1.2.0)

      Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Service -> Remote Desktop Session Host -> Security -> Require use of specific security layer for remote (RDP) connections - Enable  (and set to policy to RDP)

       

      There is a bug in Guacamole RDP client in 1.2.0 in that it can not negotiate RDP or SSL connectivity with Windows 2019 Server. When you configure Windows 2019 to use SSL in the Group Policy object above the connection fails, if set to negotiate it fails it only works with set to RDP

       

       

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            Unassigned Unassigned
            henry1491 R Aspinwall
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              Updated:
              Resolved: