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https://issues.apache.org/jira/browse/GUACAMOLE-414?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17335012#comment-17335012
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Mike Jumper edited comment on GUACAMOLE-414 at 4/28/21, 9:07 PM:
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[~Fontcha], as Nick describes:
{quote}
The default version of the library included with the EL7-based distributions
does not include this functionality, so it will be broken unless you recompile
the libvncserver/libvncclient libraries in EL7.
{quote}
You need to build and install a newer version of libvncclient since the version
in EL7 is too old too support threadsafe TLS.
It's not a matter of having the latest guacamole-server source - you need to
have a more recent libvncclient at the time that you build guacamole-server.
There are warnings logged by the {{configure}} script at build time if this is
not the case.
If you have further issues with this, rather than continue to post here, please
use the [email protected] mailing list:
http://guacamole.apache.org/support/#mailing-lists
was (Author: mike.jumper):
@Rene, as Nick describes:
{quote}
The default version of the library included with the EL7-based distributions
does not include this functionality, so it will be broken unless you recompile
the libvncserver/libvncclient libraries in EL7.
{quote}
You need to build and install a newer version of libvncclient since the version
in EL7 is too old too support threadsafe TLS.
It's not a matter of having the latest guacamole-server source - you need to
have a more recent libvncclient at the time that you build guacamole-server.
There are warnings logged by the {{configure}} script at build time if this is
not the case.
If you have further issues with this, rather than continue to post here, please
use the [email protected] mailing list:
http://guacamole.apache.org/support/#mailing-lists
> 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, 1.0.0, 1.1.0
> Environment: unRAID 6.4rc9 Docker container
> Reporter: Jason Bean
> Assignee: Nick Couchman
> Priority: Minor
> Fix For: 1.2.0
>
>
> 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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