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https://issues.apache.org/jira/browse/GUACAMOLE-414?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16497773#comment-16497773
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Brian Saltzman commented on GUACAMOLE-414:
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I can confirm its TLS because we have a very stable connection when I make vnc
create a connection turning off encryption / TLS running on Centos 7 or Ubuntu
16.4 of Artful release, which fails intermittently on the same guacamole server
with TLS connection.
It would be great if this could be fixed for the July release of Guacamole. Not
sure if I know enough to help solve the issue but happy to test a version and
report back results.
> Certain VNC servers result in disconnection due to TLS errors
> -------------------------------------------------------------
>
> Key: GUACAMOLE-414
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-414
> Project: Guacamole
> Issue Type: Bug
> Components: guacamole-server, guacd
> Affects Versions: 0.9.13-incubating, 0.9.14
> Environment: unRAID 6.4rc9 Docker container
> Reporter: Jason Bean
> Priority: Minor
>
> Connecting to certain VNC servers such as Ubuntu Desktop (all versions I have
> ever run) and a CentOS based Browser Docker
> ([https://hub.docker.com/r/consol/centos-xfce-vnc/]) cause frequent TLS
> errors and consequently disconnections. The errors in the log are as follows:
> {noformat}
> Oct 12 14:54:59 2004ff6050af guacd[8440]: Error reading from TLS: The TLS
> connection was non-properly terminated..
> Oct 12 14:54:59 2004ff6050af guacd[8440]: read (4: Interrupted system call)
> Oct 12 14:54:59 2004ff6050af guacd[8440]: Error handling message from VNC
> server.
> Oct 12 14:54:59 2004ff6050af guacd[8440]: Internal VNC client disconnected
> {noformat}
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