On Thu, Jun 17, 2021 at 8:22 AM Tikok Tikok <[email protected]> wrote:

> Hello,
>
> I'm trying to establish an RDP connection on a Windows 2012 R2 server but
> I can't!
> Here is what is displayed in the logs
>
> /var/log/syslog
>
> Jun 17 10:58:17 monserv guacd[2900]: Creating new client for protocol "rdp
> Jun 17 10:58:17 monserv guacd[2900]: Connection ID is
> "$f2c802be-d3e6-4c4d-b728-16a25f434afc"
> Jun 17 10:58:17 monserv guacd[29127]: Security mode: Negotiate (ANY)
> Jun 17 10:58:17 monserv guacd[29127]: Resize method: none
> Jun 17 10:58:17 monserv guacd[29127]: User
> "@e358a6d7-d058-49ec-a467-7b33103ee346" joined connection
> "$f2c802be-d3e6-4c4d-b728-16a25f434afc" (1 users now present)
> Jun 17 10:58:17 monserv guacd[29127]: Loading keymap "base"
> Jun 17 10:58:17 monserv guacd[29127]: Loading keymap "en-ch-qwertz"
> Jun 17 10:58:17 monserv guacd[29127]: Connected to RDPDR 1.12 as client
> 0x0004
> Jun 17 10:58:17 monserv guacd[2900]: Connection
> "$f2c802be-d3e6-4c4d-b728-16a25f434afc" removed.
>

It might be helpful to turn on debug logging by starting guacd with the "-L
debug" flag.


> /var/log/tomcat8/*
>
> ==> localhost_access_log.2021-06-17.txt <==
> 172.17.17.21 - - [17/Jun/2021:11:07:46 +0000] "POST /guacamole/api/tokens
> HTTP/1.1" 200 183
>
> ==> catalina.out <==
> 11:07:56.645 [http-nio-172.17.17.21-8081-exec-5] INFO
> o.a.g.tunnel.TunnelRequestService - User "monadmin" connected to connection
> "2".
> 11:07:57.126 [Thread-44374] INFO o.a.g.tunnel.TunnelRequestService - User
> "monadmin" disconnected from connection "2". Duration: 480 milliseconds
>
>
>
> No obvious errors in the logs
> In the interface, I have a black screen and the connection is immediately
> opened !
> I had tried (without restarting the server because it is currently in
> production) to disable in the RDP settings of the server the option "NLA
> authentication" but it does not change anything
>
> My Guacamole server is installed on a Debian 9.13. I installed directly
> from the tar.gz retrieved from Sourceforge.net (
> https://sourceforge.net/projects/guacamole/files/current/source/guacamole-client-0.9.14.tar.gz/download
> )
>

This is a very old version of Guacamole from an old site. I'd suggest you
start by retrieving the latest release and building that:

http://guacamole.apache.org/releases/1.3.0/

-Nick

>

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