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https://issues.apache.org/jira/browse/GUACAMOLE-2060?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17947657#comment-17947657
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Aaron Iles commented on GUACAMOLE-2060:
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Sure thing. I'm trying to keep this as clean as possible just to make sure it
isn't something in my environment.
Thanks for the info. I suspect it may have something to do with how caddy is
handling websockets but I'm not sure. I will post something when I have a
better idea.
I have been using 1.5.5 since it was released last April and running it behind
caddy with the config you see above without any issues. Resizing the screen
caused the remote display to be recalculated and resized without any
interruption to the connection. Changing only the version of guacd and
guacamole from 1.5.5 > 1.6.0 has introduced these resizing issues. To be clear,
this is the first time I have (thoroughly) tested staging/1.6.0. So I can't say
for sure if this is a recent issue or if it has existed in staging/1.6.0 for
some time.
> Resizing window causes guacamole to disconnect
> ----------------------------------------------
>
> Key: GUACAMOLE-2060
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-2060
> Project: Guacamole
> Issue Type: Bug
> Affects Versions: 1.6.0
> Environment: guacamole server OS: Rocky 9.5
> remote server OS: Rocky 9.5
> deployment method: docker container
> guacamole-server branch: staging/1.6.0
> guacamole-client branch: staging/1.6.0
> * Both the guacamole server and remote server are on the same private network.
> Reporter: Aaron Iles
> Priority: Major
>
> h1. Build Process
> I built the guacd and guacamole images using the corresponding Dockerfiles in
> the repos from branches `staging/1.6.0`.
> {code:java}
> git clone https://github.com/apache/guacamole-server.git
> cd guacamole-server
> git checkout staging/1.6.0
> docker build .
> cd ..
> git clone https://github.com/apache/guacamole-client.git
> cd guacamole-client
> git checkout staging/1.6.0
> # Had to make a small modification to
> guacamole/src/main/frontend/webpack.config.js to disable ClosureWebpackPlugin
> to get a successful build
> docker build .{code}
> Once the images were built I stood up guacamole, guacd, and postgres using
> the instructions from the documentation.
> h1. Reproducer
> # Create an ssh connection in guacamole to any machine (this also happens
> with RDP connections)
> # Once successfully authenticated and the prompt is visible, resize the
> browser in which guacamole is running.
> # Wait 15 seconds or so and notice the connection drop with the error
> {code:java}
> The Guacamole server has closed the connection because there has been no
> response from your browser for long enough that it appeared to be
> disconnected. This is commonly caused by network problems, such as spotty
> wireless signal, or simply very slow network speeds. Please check your
> network and try again.{code}
> If you allow the connection to re-establish, all is well again. Resize the
> window again and you may get an error like this
> {code:java}
> An internal error has occurred within the Guacamole server, and the
> connection has been terminated. If the problem persists, please notify your
> system administrator, or check your system logs. {code}
> h1. Logs (SSH)
> {code:java}
> guacd | guacd[1]: INFO: Creating new client for protocol "ssh"
> guacd | guacd[1]: INFO: Connection ID is
> "$8dc51045-4ab2-4113-b11b-b141262216e4"
> guacd | guacd[5044]: INFO: User "@e2e79a9a-6496-4192-b03d-29d6f30bad05"
> joined connection "$8dc51045-4ab2-4113-b11b-b141262216e4" (1 users now
> present)
> guacd | guacd[5044]: WARNING: No known host keys provided, host
> identity will not be verified.
> guacamole | 22:14:26.213 [http-nio-8080-exec-5] INFO
> o.a.g.tunnel.TunnelRequestService - User "aaron" connected to connection "10".
> guacd | guacd[5044]: WARNING: Unable to set the timezone: SSH
> server refused to set "TZ" variable.
> guacd | guacd[5044]: INFO: SSH connection successful.
> # At this moment I resized my browser window
> guacamole | 22:14:32.650 [http-nio-8080-exec-3] INFO
> o.a.g.tunnel.TunnelRequestService - User "aaron" connected to connection "10".
> guacamole | 22:14:32.719 [http-nio-8080-exec-1] INFO
> o.a.g.tunnel.TunnelRequestService - User "aaron" connected to connection "10".
> guacd | guacd[1]: INFO: Creating new client for protocol "ssh"
> guacd | guacd[1]: INFO: Connection ID is
> "$35043639-b133-4ec9-9303-0ed265c718e9"
> guacd | guacd[5065]: INFO: User "@10bb93cc-8dd1-41d8-9560-c21c9a513027"
> joined connection "$35043639-b133-4ec9-9303-0ed265c718e9" (1 users now
> present)
> guacd | guacd[1]: INFO: Creating new client for protocol "ssh"
> guacd | guacd[1]: INFO: Connection ID is
> "$0eebddf6-25fd-4908-954c-657012c649ee"
> guacd | guacd[5081]: INFO: User "@dc27a036-c655-4a0a-8c82-0d74a17d0a6d"
> joined connection "$0eebddf6-25fd-4908-954c-657012c649ee" (1 users now
> present)
> guacd | guacd[5065]: WARNING: No known host keys provided, host
> identity will not be verified.
> guacd | guacd[5081]: WARNING: No known host keys provided, host
> identity will not be verified.
> guacd | guacd[5065]: WARNING: Unable to set the timezone: SSH
> server refused to set "TZ" variable.
> guacd | guacd[5065]: INFO: SSH connection successful.
> guacd | guacd[5081]: WARNING: Unable to set the timezone: SSH
> server refused to set "TZ" variable.
> guacamole | 22:14:32.910 [http-nio-8080-exec-6] INFO
> o.a.g.tunnel.TunnelRequestService - User "aaron" disconnected from connection
> "10". Duration: 191 milliseconds
> guacd | guacd[5081]: INFO: SSH connection successful.{code}
> h1. Logs (RDP)
> {code:java}
> guacamole | 22:18:43.976 [http-nio-8080-exec-1] INFO
> o.a.g.tunnel.TunnelRequestService - User "aaron" connected to connection "9".
> guacd | guacd[1]: INFO: Creating new client for protocol "rdp"
> guacd | guacd[1]: INFO: Connection ID is
> "$3c3023c5-1ada-4010-9f7e-d84f59eced86"
> guacd | guacd[5140]: INFO: Security mode: NLA
> guacd | guacd[5140]: INFO: Resize method: none
> guacd | guacd[5140]: INFO: Clipboard line ending normalization: Unix (LF)
> guacd | guacd[5140]: INFO: User "@6c2d8abf-0aa8-4575-be56-d0d5e3e1d671"
> joined connection "$3c3023c5-1ada-4010-9f7e-d84f59eced86" (1 users now
> present)
> guacd | guacd[5140]: INFO: Local system reports 2 processor(s) are
> available.
> guacd | guacd[5140]: INFO: Graphical updates will be encoded using 2
> worker thread(s).
> guacd | guacd[5140]: INFO: Loading keymap "base"
> guacd | guacd[5140]: INFO: Loading keymap "en-us-qwerty"
> # At this moment I resized the browser window
> guacamole | 22:18:43.976 [http-nio-8080-exec-1] INFO
> o.a.g.tunnel.TunnelRequestService - User "aaron" connected to connection "9".
> guacd | guacd[1]: INFO: Creating new client for protocol "rdp"
> guacd | guacd[1]: INFO: Connection ID is
> "$3c3023c5-1ada-4010-9f7e-d84f59eced86"
> guacd | guacd[5140]: INFO: Security mode: NLA
> guacd | guacd[5140]: INFO: Resize method: none
> guacd | guacd[5140]: INFO: Clipboard line ending normalization: Unix (LF)
> guacd | guacd[5140]: INFO: User "@6c2d8abf-0aa8-4575-be56-d0d5e3e1d671"
> joined connection "$3c3023c5-1ada-4010-9f7e-d84f59eced86" (1 users now
> present)
> guacd | guacd[5140]: INFO: Local system reports 2 processor(s) are
> available.
> guacd | guacd[5140]: INFO: Graphical updates will be encoded using 2
> worker thread(s).
> guacd | guacd[5140]: INFO: Loading keymap "base"
> guacd | guacd[5140]: INFO: Loading keymap "en-us-qwerty"
> guacd | guacd[1]: INFO: Creating new client for protocol "rdp"
> guacd | guacd[1]: INFO: Connection ID is
> "$93dce036-a405-47ab-8bd9-a1232bd09906"
> guacd | guacd[5172]: INFO: Security mode: NLA
> guacd | guacd[5172]: INFO: Resize method: none
> guacd | guacd[5172]: INFO: Clipboard line ending normalization: Unix (LF)
> guacd | guacd[5172]: INFO: User "@f5f0ab7f-cc9a-4792-89b5-a5a47c143bfc"
> joined connection "$93dce036-a405-47ab-8bd9-a1232bd09906" (1 users now
> present)
> guacd | guacd[5172]: INFO: Local system reports 2 processor(s) are
> available.
> guacd | guacd[5172]: INFO: Graphical updates will be encoded using 2
> worker thread(s).
> guacd | guacd[5172]: INFO: Loading keymap "base"
> guacd | guacd[5172]: INFO: Loading keymap "en-us-qwerty"
> guacd | guacd[1]: INFO: Creating new client for protocol "rdp"
> guacd | guacd[1]: INFO: Connection ID is
> "$e017719b-d15f-4260-b83c-537f875bf116"
> guacd | guacd[5187]: INFO: Security mode: NLA
> guacamole | 22:18:59.998 [http-nio-8080-exec-12] INFO
> o.a.g.tunnel.TunnelRequestService - User "aaron" connected to connection "9".
> guacamole | 22:19:00.015 [http-nio-8080-exec-10] INFO
> o.a.g.tunnel.TunnelRequestService - User "aaron" connected to connection "9".
> guacd | guacd[5187]: INFO: Resize method: none
> guacd | guacd[5187]: INFO: Clipboard line ending normalization: Unix (LF)
> guacd | guacd[5187]: INFO: User "@036b04f8-78a6-471d-aa68-67ff3e118369"
> joined connection "$e017719b-d15f-4260-b83c-537f875bf116" (1 users now
> present)
> guacd | guacd[5187]: INFO: Local system reports 2 processor(s) are
> available.
> guacd | guacd[5187]: INFO: Graphical updates will be encoded using 2
> worker thread(s).
> guacd | guacd[5187]: INFO: Loading keymap "base"
> guacd | guacd[5187]: INFO: Loading keymap "en-us-qwerty"
> guacd | guacd[5140]: ERROR: User is not responding.
> guacd | guacd[5140]: INFO: User "@6c2d8abf-0aa8-4575-be56-d0d5e3e1d671"
> disconnected (0 users remain)
> guacd | guacd[5140]: INFO: Last user of connection
> "$3c3023c5-1ada-4010-9f7e-d84f59eced86" disconnected
> guacd | guacd[5187]: INFO: User "@036b04f8-78a6-471d-aa68-67ff3e118369"
> disconnected (0 users remain)
> guacd | guacd[5187]: INFO: Last user of connection
> "$e017719b-d15f-4260-b83c-537f875bf116" disconnected
> guacd | guacd[5172]: ERROR: User is not responding.
> guacd | guacd[5172]: INFO: User "@f5f0ab7f-cc9a-4792-89b5-a5a47c143bfc"
> disconnected (0 users remain){code}
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