Hi to all! I've been using Guacamole for a while for training gateway
purposes and it is just great! Thanks for an amazing open source product!
Now I am writing because I need help from the Gurus. I know it is a
configuration parameter that will likely has to be added to:
/var/lib/tomcat9/web-apps/guacamole/WEB-INF/web.xml
But it has been decades since I've configured Tomcat9 directly and I am
afraid that any change that I do will break things further.
The error itself is self explanatory:
Jul 15 18:16:20 suppod-1 guacd[2253]: RDP server has requested to send a
sequence of 1048632 bytes, but this exceeds the maximum buffer space of
1048576 bytes. Received data may be truncated.
When looking on the Guacamole documentation, nothing is mentioned that I
could find.
When going to the Tomcat9 documentation I found some parameters to modify,
all on the web.xml file but as I said, I do not know where to do it on the
guacamole WEB-INF/web.xml file.
The parameter that *looked to me* that may be the one is the following:
<init-param>
<param-name>buffered</param-name>
<param-value>1</param-value>
</init-param>
As the limit described on the error is 1MB.
I understand this may be a silly question, if anyone could point me in the
right direction would be really appreciated.
Thanks for any assistance you may provide!
David.
For reference, here is a more complete section of the log with the error.
The filename TokenDistributionPKG.zip file is the one I am trying to upload.
Jul 15 18:15:58 suppod-1 guacd[2253]: File open refused (-2): "\desktop.ini"
Jul 15 18:16:00 suppod-1 guacd[2253]: File open refused (-2):
"\Download\desktop.ini"
Jul 15 18:16:20 suppod-1 guacd[2253]: RDP server has requested to send a
sequence of 1048632 bytes, but this exceeds the maximum buffer space of
1048576 bytes. Received data may be truncated.
Jul 15 18:16:33 suppod-1 guacd[2253]: message repeated 27 times: [ RDP
server has requested to send a sequence of 1048632 bytes, but this exceeds
the maximum buffer space of 1048576 bytes. Received data may be truncated.]
Jul 15 18:16:34 suppod-1 guacd[2253]: File open refused (-2):
"\Download\TokenDistributionPKG.zip:Zone.Identifier"
Jul 15 18:16:34 suppod-1 guacd[2253]: File open refused (-2):
"\Download\TokenDistributionPKG.zip:Zone.Identifier"
Jul 15 18:16:34 suppod-1 guacd[2253]: File open refused (-2):
"\Download\TokenDistributionPKG.zip"
Jul 15 18:16:35 suppod-1 guacd[2253]: message repeated 2 times: [ File open
refused (-2): "\Download\TokenDistributionPKG.zip"]
Jul 15 18:16:56 suppod-1 guacd[2253]: RDP server has requested to send a
sequence of 1048632 bytes, but this exceeds the maximum buffer space of
1048576 bytes. Received data may be truncated.
Jul 15 18:17:13 suppod-1 guacd[2253]: message repeated 27 times: [ RDP
server has requested to send a sequence of 1048632 bytes, but this exceeds
the maximum buffer space of 1048576 bytes. Received data may be truncated.]
Jul 15 18:17:14 suppod-1 guacd[2253]: File open refused (-2):
"\TokenDistributionPKG.zip:Zone.Identifier"
Jul 15 18:17:14 suppod-1 guacd[2253]: File open refused (-2):
"\TokenDistributionPKG.zip:Zone.Identifier"
Jul 15 18:17:22 suppod-1 guacd[2253]: Accepted format: 16-bit PCM with 2
channels at 44100 Hz
Jul 15 18:17:47 suppod-1 guacd[2253]: File open refused (-2):
"\TokenDistributionPKG.zip"
Jul 15 18:17:55 suppod-1 guacd[2217]: User
"@3f34a609-c8da-417b-af58-a4fc2e9df733" disconnected (0 users remain)
Jul 15 18:17:55 suppod-1 guacd[2217]: Last user of connection
"$5280a8eb-b216-4fa4-8fdd-1d7421630bfd" disconnected
Jul 15 18:17:55 suppod-1 tomcat9[675]: 18:17:55.502 [http-nio-8080-exec-6]
INFO o.a.g.tunnel.TunnelRequestService - User "trapx" disconnected from
connection "Win10Token". Duration: 1284470 milliseconds
Jul 15 18:17:55 suppod-1 tomcat9[675]: Exception in thread "Thread-8"
java.lang.IllegalStateException: Message will not be sent because the
WebSocket session has been closed
Jul 15 18:17:55 suppod-1 tomcat9[675]: #011at
org.apache.tomcat.websocket.WsRemoteEndpointImplBase.writeMessagePart(WsRemoteEndpointImplBase.java:430)
Jul 15 18:17:55 suppod-1 tomcat9[675]: #011at
org.apache.tomcat.websocket.WsRemoteEndpointImplBase.sendMessageBlock(WsRemoteEndpointImplBase.java:309)
Jul 15 18:17:55 suppod-1 tomcat9[675]: #011at
org.apache.tomcat.websocket.WsRemoteEndpointImplBase.sendMessageBlock(WsRemoteEndpointImplBase.java:250)
Jul 15 18:17:55 suppod-1 tomcat9[675]: #011at
org.apache.tomcat.websocket.WsRemoteEndpointImplBase.sendString(WsRemoteEndpointImplBase.java:191)
Jul 15 18:17:55 suppod-1 tomcat9[675]: #011at
org.apache.tomcat.websocket.WsRemoteEndpointBasic.sendText(WsRemoteEndpointBasic.java:37)
Jul 15 18:17:55 suppod-1 tomcat9[675]: #011at
org.apache.guacamole.websocket.GuacamoleWebSocketTunnelEndpoint.sendInstruction(GuacamoleWebSocketTunnelEndpoint.java:152)
Jul 15 18:17:55 suppod-1 tomcat9[675]: #011at
org.apache.guacamole.websocket.GuacamoleWebSocketTunnelEndpoint.access$200(GuacamoleWebSocketTunnelEndpoint.java:53)
Jul 15 18:17:55 suppod-1 tomcat9[675]: #011at
org.apache.guacamole.websocket.GuacamoleWebSocketTunnelEndpoint$2.run(GuacamoleWebSocketTunnelEndpoint.java:253)
Jul 15 18:17:55 suppod-1 rsyslogd: action 'action-8-builtin:omfile' resumed
(module 'builtin:omfile') [v8.2001.0 try https://www.rsyslog.com/e/2359 ]
Jul 15 18:17:55 suppod-1 rsyslogd: action 'action-8-builtin:omfile'
suspended (module 'builtin:omfile'), retry 0. There should be messages
before this one giving the reason for suspension. [v8.2001.0 try
https://www.rsyslog.com/e/2007 ]
Jul 15 18:17:55 suppod-1 rsyslogd: action 'action-8-builtin:omfile' resumed
(module 'builtin:omfile') [v8.2001.0 try https://www.rsyslog.com/e/2359 ]
Jul 15 18:17:55 suppod-1 rsyslogd: action 'action-8-builtin:omfile'
suspended (module 'builtin:omfile'), retry 0. There should be messages
before this one giving the reason for suspension. [v8.2001.0 try
https://www.rsyslog.com/e/2007 ]
Jul 15 18:17:55 suppod-1 rsyslogd: action 'action-8-builtin:omfile' resumed
(module 'builtin:omfile') [v8.2001.0 try https://www.rsyslog.com/e/2359 ]
Jul 15 18:17:55 suppod-1 rsyslogd: action 'action-8-builtin:omfile'
suspended (module 'builtin:omfile'), retry 0. There should be messages
before this one giving the reason for suspension. [v8.2001.0 try
https://www.rsyslog.com/e/2007 ]
Jul 15 18:17:55 suppod-1 rsyslogd: action 'action-8-builtin:omfile' resumed
(module 'builtin:omfile') [v8.2001.0 try https://www.rsyslog.com/e/2359 ]
Jul 15 18:17:55 suppod-1 rsyslogd: action 'action-8-builtin:omfile'
suspended (module 'builtin:omfile'), retry 0. There should be messages
before this one giving the reason for suspension. [v8.2001.0 try
https://www.rsyslog.com/e/2007 ]
Jul 15 18:17:55 suppod-1 rsyslogd: action 'action-8-builtin:omfile' resumed
(module 'builtin:omfile') [v8.2001.0 try https://www.rsyslog.com/e/2359 ]
Jul 15 18:17:55 suppod-1 rsyslogd: action 'action-8-builtin:omfile'
suspended (module 'builtin:omfile'), retry 0. There should be messages
before this one giving the reason for suspension. [v8.2001.0 try
https://www.rsyslog.com/e/2007 ]
Jul 15 18:17:55 suppod-1 rsyslogd: action 'action-8-builtin:omfile' resumed
(module 'builtin:omfile') [v8.2001.0 try https://www.rsyslog.com/e/2359 ]
Jul 15 18:17:55 suppod-1 rsyslogd: action 'action-8-builtin:omfile'
suspended (module 'builtin:omfile'), retry 0. There should be messages
before this one giving the reason for suspension. [v8.2001.0 try
https://www.rsyslog.com/e/2007 ]
Jul 15 18:17:55 suppod-1 rsyslogd: action 'action-8-builtin:omfile' resumed
(module 'builtin:omfile') [v8.2001.0 try https://www.rsyslog.com/e/2359 ]
Jul 15 18:17:55 suppod-1 rsyslogd: action 'action-8-builtin:omfile'
suspended (module 'builtin:omfile'), retry 0. There should be messages
before this one giving the reason for suspension. [v8.2001.0 try
https://www.rsyslog.com/e/2007 ]
Jul 15 18:17:55 suppod-1 rsyslogd: action 'action-8-builtin:omfile' resumed
(module 'builtin:omfile') [v8.2001.0 try https://www.rsyslog.com/e/2359 ]
Jul 15 18:17:55 suppod-1 rsyslogd: action 'action-8-builtin:omfile'
suspended (module 'builtin:omfile'), retry 0. There should be messages
before this one giving the reason for suspension. [v8.2001.0 try
https://www.rsyslog.com/e/2007 ]
Jul 15 18:17:55 suppod-1 rsyslogd: action 'action-8-builtin:omfile' resumed
(module 'builtin:omfile') [v8.2001.0 try https://www.rsyslog.com/e/2359 ]
Jul 15 18:17:55 suppod-1 rsyslogd: action 'action-8-builtin:omfile'
suspended (module 'builtin:omfile'), retry 0. There should be messages
before this one giving the reason for suspension. [v8.2001.0 try
https://www.rsyslog.com/e/2007 ]
Jul 15 18:17:55 suppod-1 rsyslogd: action 'action-8-builtin:omfile' resumed
(module 'builtin:omfile') [v8.2001.0 try https://www.rsyslog.com/e/2359 ]
Jul 15 18:17:55 suppod-1 rsyslogd: action 'action-8-builtin:omfile'
suspended (module 'builtin:omfile'), retry 0. There should be messages
before this one giving the reason for suspension. [v8.2001.0 try
https://www.rsyslog.com/e/2007 ]
Jul 15 18:17:55 suppod-1 rsyslogd: action 'action-8-builtin:omfile'
suspended (module 'builtin:omfile'), next retry is Fri Jul 15 18:18:25
2022, retry nbr 0. There should be messages before this one giving the
reason for suspension. [v8.2001.0 try https://www.rsyslog.com/e/2007 ]
Jul 15 18:17:55 suppod-1 guacd[2217]: Internal RDP client disconnected
Jul 15 18:17:55 suppod-1 guacd[582]: Connection
"$5280a8eb-b216-4fa4-8fdd-1d7421630bfd" removed.
Jul 15 18:17:56 suppod-1 guacd[2106]: User
"@d0d18747-c276-4420-9662-4550f1b907f7" disconnected (0 users remain)
Jul 15 18:17:56 suppod-1 guacd[2106]: Last user of connection
"$10b8ed36-f0fc-4dc7-a936-7a8386963f4e" disconnected
