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https://issues.apache.org/jira/browse/GUACAMOLE-733?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16770401#comment-16770401
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Nick Couchman commented on GUACAMOLE-733:
-----------------------------------------

{quote}
Only problem is, I don't know where the log files are kept. Where can I find 
that?
{quote}

By default they are sent to syslog (/var/log/messages, journalctl, etc.).  You 
can also start guacd in the foreground using the -f flag:

{code}
guacd -L debug -f
{code}

And then all of the output will be to stdout.  Doesn't sound like the proxy is 
to blame, so looks like, for whatever reason, guacd cannot contact the VNC 
server.  Is it the same guacd server - same network, same IP, etc.?  No 
firewall rules or anything like that to prevent connection?  Have you verified 
you can connect with a VNC client from the same system running guacd?

I'm not familiar with FreeBSD iocage jails, so I don't know what, if any, 
impact that would have upon the functionality.

> VNC Scaling Not working properly
> --------------------------------
>
>                 Key: GUACAMOLE-733
>                 URL: https://issues.apache.org/jira/browse/GUACAMOLE-733
>             Project: Guacamole
>          Issue Type: Improvement
>          Components: guacamole-client, VNC
>    Affects Versions: 0.9.14
>         Environment: The VNC Server:
> Ubuntu 16.04.5 LTS
> TigerVNC
>            Reporter: Andrew Lamarra
>            Priority: Trivial
>              Labels: vnc
>
> Hi there. I've been using Guacamole for a couple of years now (and love it!), 
> but I've always had one issue. When connecting to a VNC server, the scaling 
> of the window has always been a bit awkward to me. It's really difficult to 
> get Guacamole to scale the display to 100%. I'm able to do so by following 
> these steps:
>  * Open the Guacamole menu (press Ctrl+Alt+Shift)
>  * Uncheck "Automatically fit to browser window" under Display
>  * Un-maxmize browser window
>  * Check "Automatically fit to browser window"
>  * Uncheck "Automatically fit to browser window"
> Now I'm at 100%. But I can't maximize the browser window or it'll change 
> (even though I have "Automatically fit to browser window" unchecked). It's a 
> minor annoyance because the font is noticeably fuzzy when not at 100%.
> Also, those zoom buttons don't work very well either. It only goes in 
> increments of 10%. And if you're at 109% and zoom out, then you're set to 
> 99%...



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