[jira] [Comment Edited] (GUACAMOLE-1236) Guacamole 1.2.0 can not make RDP connection to Windows 2019 Server

["R Aspinwall (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/GUACAMOLE-1236?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17259530#comment-17259530 ] 

R Aspinwall edited comment on GUACAMOLE-1236 at 1/6/21, 9:19 AM:
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Both Windows Remote Desktop connection and Remmina can successfully connect to Windows 2019 without registry hacks, the Guacamole SSL/RDP client can not connect without the Registry Hack. This is a bug which needs to fixed


was (Author: henry1491):
Both Windows Remote Desktop connection and Reminia can successfully connect to Windows 2019 without registry hacks, the Guacamole SSL/RDP client can not connect without the Registry Hack. This is a bug which needs to fixed

> Guacamole 1.2.0 can not make RDP connection to Windows 2019 Server
> ------------------------------------------------------------------
>
>                 Key: GUACAMOLE-1236
>                 URL: https://issues.apache.org/jira/browse/GUACAMOLE-1236
>             Project: Guacamole
>          Issue Type: Bug
>          Components: RDP
>    Affects Versions: 1.2.0
>         Environment: Ubuntu 20.04 Server running Guacamole 1.2.0
>            Reporter: R Aspinwall
>            Priority: Major
>
> 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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