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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