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https://issues.apache.org/jira/browse/GUACAMOLE-1430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17422433#comment-17422433
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Matt Visnovsky commented on GUACAMOLE-1430:
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Alright, so I went ahead and built the client and server from source. I
verified I have the latest FreeRDP binaries with the following command:
root@Guacamole:~# xfreerdp /version
This is FreeRDP version 2.2.0 (n/a)
Now I'm seeing the following error (no SSL/TLS) when attempting to connect
(using same guacamole.properties file from when I was running stable binaries):
Sep 29 22:41:20 Guacamole tomcat9[1851]: 22:41:20.591 [http-nio-8080-exec-4]
ERROR o.a.g.w.GuacamoleWebSocketTunnelEndpoint - Creation of WebSocket tunnel
to guacd failed: java.net.ConnectException: Connection refused (Connection
refused)
Sep 29 22:41:20 Guacamole tomcat9[1851]: 22:41:20.787 [http-nio-8080-exec-6]
DEBUG o.a.g.net.InetGuacamoleSocket - Connecting to guacd at localhost:4822.
With SSL/TLS, same error:
Sep 29 22:41:44 Guacamole tomcat9[1851]: 22:41:44.181 [http-nio-8080-exec-9]
DEBUG o.a.guacamole.net.SSLGuacamoleSocket - Connecting to guacd at
localhost:4822 via SSL/TLS.
Sep 29 22:41:44 Guacamole tomcat9[1851]: 22:41:44.194 [http-nio-8080-exec-9]
ERROR o.a.g.w.GuacamoleWebSocketTunnelEndpoint - Creation of WebSocket tunnel
to guacd failed: java.net.ConnectException: Connection refused (Connection
refused)
Client and server are on the same machine, so I'm not sure why guacd is
refusing the connection from tomcat. Any advice?
> RDP audio redirection causing connection to drop/close (Windows 10, Guacamole
> 1.3.0)
> ------------------------------------------------------------------------------------
>
> Key: GUACAMOLE-1430
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-1430
> Project: Guacamole
> Issue Type: Bug
> Components: RDP
> Affects Versions: 1.3.0
> Environment: Ubuntu 18.0.4 Server running guacamole-server (guacd
> Apache Tomcat) v1.3.0 connecting to Windows 10 with latest updates
> Reporter: Matt Visnovsky
> Priority: Minor
> Labels: RDP, audio, bug
>
> Remote microphone access with Windows RDP protocol is causing Guacamole
> connections to drop/close as soon as the redirected-audio (microphone)
> connection is accessed. I'm able to recreate the bug in all major browsers:
> Firefox, Chrome, Edge and IE11. The bug does NOT occur with native Windows 10
> RDP client, so I've been able to narrow down the bug to Guacamole.
> /var/log/tomcat9 logs yield no useful information.
> Here's the last few lines of "cat /var/log/syslog | grep -i "guacd" at the
> time of the connection drop:
> Sep 29 17:13:22 Guacamole guacd[20070]: RDPDR user logged on
> Sep 29 17:13:48 Guacamole guacd[20070]: Accepted format: 16-bit PCM with 2
> channels at 44100 Hz
> Sep 29 17:13:48 Guacamole guacd[20070]: Accepted format: 16-bit PCM with 2
> channels at 44100 Hz
> Sep 29 17:13:58 Guacamole guacd[20070]: Connection closed.
> Sep 29 17:13:58 Guacamole guacd[20070]: Internal RDP client disconnected
> Sep 29 17:13:58 Guacamole guacd[20070]: User
> "@4e06ba07-07f8-4bb4-bc90-b6680a938c2e" disconnected (0 users remain)
> Sep 29 17:13:58 Guacamole guacd[20070]: Last user of connection
> "$4ab6dbad-4c1c-4650-a903-68fbab3306ba" disconnected
> Sep 29 17:13:58 Guacamole guacd[225]: Connection
> "$4ab6dbad-4c1c-4650-a903-68fbab3306ba" removed.
> Sep 29 17:13:58 Guacamole tomcat9[183]: 17:13:58.135 [http-nio-8080-exec-5]
> DEBUG o.a.g.net.InetGuacamoleSocket - Closing socket to guacd.
> Sep 29 17:14:01 Guacamole tomcat9[183]: 17:14:01.637 [http-nio-8080-exec-10]
> DEBUG o.a.g.net.InetGuacamoleSocket - Connecting to guacd at localhost:4822.
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