[jira] [Created] (GUACAMOLE-1036) can not connect via RDP using guacamole docker

["Jeffrey Lebowski (Jira)" <ji...@apache.org>]

Jeffrey Lebowski created GUACAMOLE-1036:
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             Summary: can not connect via RDP using guacamole docker
                 Key: GUACAMOLE-1036
                 URL: https://issues.apache.org/jira/browse/GUACAMOLE-1036
             Project: Guacamole
          Issue Type: Bug
          Components: RDP
    Affects Versions: 1.1.0
         Environment: guacamole 1.1.0 on Manjaro with Docker 19.03.8-ce
            Reporter: Jeffrey Lebowski


I set up guacamole via docker and nginx as reverse proxy.
VNC-connections work as expected, but RDP does not.

The system I want to remote control is an Arch linux system running x11vnc and FreeRDP version 2.0.0 (git n/a).

I would say the guacamole docker side is set up correctly because "everything VNC" and "everything SSH" to my Arch system works.

The FreeRDP setup on the Arch system is this (started as a normal user, not root):

{{[xx@arch]$ freerdp-shadow-cli -auth}}
{{[13:12:17:144] [52077:52077] [INFO][com.freerdp.server.shadow.x11] - X11 Extensions: XFixes: 1 Xinerama: 1 XDamage: 0 XShm: 0}}
{{[13:12:17:148] [52077:52077] [INFO][com.freerdp.core.listener] - Listening on 0.0.0.0:3389}}

Then the connection from guacamole:

{{[13:13:01:657] [52077:52085] [INFO][com.freerdp.core.connection] - Client Security: NLA:0 TLS:1 RDP:0}}
{{[13:13:01:657] [52077:52085] [INFO][com.freerdp.core.connection] - Server Security: NLA:0 TLS:1 RDP:1}}
{{[13:13:01:657] [52077:52085] [INFO][com.freerdp.core.connection] - Negotiated Security: NLA:0 TLS:1 RDP:0}}
{{[13:13:01:662] [52077:52085] [INFO][com.freerdp.core.connection] - Accepted client: Guacamole RDP}}
{{[13:13:01:662] [52077:52085] [INFO][com.freerdp.core.connection] - Accepted channels:}}
{{[13:13:01:662] [52077:52085] [INFO][com.freerdp.core.connection] - cliprdr}}
{{[13:13:01:662] [52077:52085] [INFO][com.freerdp.core.connection] - rdpdr}}
{{[13:13:01:662] [52077:52085] [INFO][com.freerdp.core.connection] - rdpsnd}}
{{[13:13:01:662] [52077:52085] [INFO][com.freerdp.core.connection] - drdynvc}}
{{[13:13:01:662] [52077:52085] [INFO][com.freerdp.core.gcc] - Active rdp encryption level: NONE}}
{{[13:13:01:662] [52077:52085] [INFO][com.freerdp.core.gcc] - Selected rdp encryption method: NONE}}
{{[13:13:01:686] [52077:52085] [INFO][com.freerdp.client.shadow] - Client from 192.168.0.16 is activated (1920x1080@32)}}
{{[13:13:01:814] [52077:52085] [ERROR][com.freerdp.core.peer] - peer_recv_callback: CONNECTION_STATE_ACTIVE - peer_recv_pdu() fail}}
{{[13:13:01:814] [52077:52085] [ERROR][com.freerdp.core.transport] - transport_check_fds: transport->ReceiveCallback() - -1}}
{{[13:13:01:814] [52077:52085] [ERROR][com.freerdp.client.shadow] - Failed to check FreeRDP file descriptor}}

That connection in the guacd log:

{{guacd[6]: INFO: Guacamole proxy daemon (guacd) version 1.1.0 started}}
{{guacd[6]: INFO: Listening on host 0.0.0.0, port 4822}}
{{guacd[6]: INFO: Creating new client for protocol "rdp"}}
{{guacd[6]: INFO: Connection ID is "$f8d73f56-bf55-4335-8c68-3b0b9376f4ed"}}
{{guacd[8]: INFO: Security mode: Negotiate (ANY)}}
{{guacd[8]: INFO: Resize method: display-update}}
{{guacd[8]: INFO: User "@dd6c34f0-833e-4e07-a9b4-c02b15cac414" joined connection "$f8d73f56-bf55-4335-8c68-3b0b9376f4ed" (1 users now present)}}
{{guacd[8]: INFO: Loading keymap "base"}}
{{guacd[8]: INFO: Loading keymap "de-de-qwertz"}}
{{guacd[8]: INFO: Accepted format: 16-bit PCM with 2 channels at 44100 Hz}}
{{guacd[8]: ERROR: Connection closed.}}
{{guacd[8]: INFO: Internal RDP client disconnected}}
{{guacd[8]: INFO: User "@dd6c34f0-833e-4e07-a9b4-c02b15cac414" disconnected (0 users remain)}}
{{guacd[8]: INFO: Last user of connection "$f8d73f56-bf55-4335-8c68-3b0b9376f4ed" disconnected}}
{{guacd[6]: INFO: Connection "$f8d73f56-bf55-4335-8c68-3b0b9376f4ed" removed.}}

The "funny" thing is that in the browser used to connect I can sometimes see a "screenshot" of my Arch desktop when trying the RDP connection but immediatly after that comes the guacamole error message aborting the connection.
Another strange thing is that - only once - I got a "red screen" with "Welcome" written on it in the browser trying the RDP connection (but I did not the the desktop or anything else).

I tried different RDP connections settings in guacamole - none of them works as expected.

 

 



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