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https://issues.apache.org/jira/browse/GUACAMOLE-733?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16771358#comment-16771358
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Andrew Lamarra commented on GUACAMOLE-733:
------------------------------------------

I've verified that there are no firewalls in the way (as there shouldn't be as 
all I've changed was upgrading to v1.0.0). Both systems are on the same subnet. 
I am able to connect to the VNC server from another computer using a VNC 
client. Again, nothing has changed on the VNC server. I started guacd in the 
foreground as you suggested & got the following output:
{noformat}
guacd[7519]: INFO: Guacamole proxy daemon (guacd) version 1.0.0 started
guacd[7519]: DEBUG: Successfully bound socket to host 127.0.0.1, port 4822
guacd[7519]: INFO: Listening on host 127.0.0.1, port 4822
guacd[7519]: INFO: Creating new client for protocol "vnc"
guacd[7519]: INFO: Connection ID is "$77741580-0656-4a1a-80cd-c8173c6d680a"
guacd[7692]: INFO: Cursor rendering: local
guacd[7692]: DEBUG: Parameter "swap-red-blue" omitted. Using default value of 0.
guacd[7692]: DEBUG: Parameter "read-only" omitted. Using default value of 0.
guacd[7692]: DEBUG: Parameter "color-depth" omitted. Using default value of 0.
guacd[7692]: DEBUG: Parameter "dest-port" omitted. Using default value of 0.
guacd[7692]: DEBUG: Parameter "encodings" omitted. Using default value of "zrle 
ultra copyrect hextile zlib corre rre raw".
guacd[7692]: DEBUG: Parameter "autoretry" omitted. Using default value of 0.
guacd[7692]: DEBUG: Parameter "reverse-connect" omitted. Using default value of 
0.
guacd[7692]: DEBUG: Parameter "listen-timeout" omitted. Using default value of 
5000.
guacd[7692]: DEBUG: Parameter "enable-audio" omitted. Using default value of 0.
guacd[7692]: DEBUG: Parameter "enable-sftp" omitted. Using default value of 0.
guacd[7692]: DEBUG: Parameter "sftp-hostname" omitted. Using default value of 
"192.168.1.11".
guacd[7692]: DEBUG: Parameter "sftp-port" omitted. Using default value of "22".
guacd[7692]: DEBUG: Parameter "sftp-username" omitted. Using default value of 
"".
guacd[7692]: DEBUG: Parameter "sftp-password" omitted. Using default value of 
"".
guacd[7692]: DEBUG: Parameter "sftp-passphrase" omitted. Using default value of 
"".
guacd[7692]: DEBUG: Parameter "sftp-root-directory" omitted. Using default 
value of "/".
guacd[7692]: DEBUG: Parameter "sftp-server-alive-interval" omitted. Using 
default value of 0.
guacd[7692]: DEBUG: Parameter "recording-name" omitted. Using default value of 
"recording".
guacd[7692]: DEBUG: Parameter "recording-exclude-output" omitted. Using default 
value of 0.
guacd[7692]: DEBUG: Parameter "recording-exclude-mouse" omitted. Using default 
value of 0.
guacd[7692]: DEBUG: Parameter "recording-include-keys" omitted. Using default 
value of 0.
guacd[7692]: DEBUG: Parameter "create-recording-path" omitted. Using default 
value of 0.
guacd[7692]: INFO: User "@dbdfdef5-43e6-4615-9592-01df5709f6a6" joined 
connection "$77741580-0656-4a1a-80cd-c8173c6d680a" (1 users now present)
guacd[7692]: ERROR: Unable to connect to VNC server.
guacd[7692]: INFO: User "@dbdfdef5-43e6-4615-9592-01df5709f6a6" disconnected (0 
users remain)
guacd[7692]: INFO: Last user of connection 
"$77741580-0656-4a1a-80cd-c8173c6d680a" disconnected
guacd[7692]: DEBUG: Requesting termination of client...
guacd[7692]: DEBUG: Client terminated successfully.
guacd[7519]: INFO: Connection "$77741580-0656-4a1a-80cd-c8173c6d680a" removed.
guacd[7519]: ERROR: Unable to shutdown internal socket for connection 
$77741580-0656-4a1a-80cd-c8173c6d680a. Corresponding process may remain running 
but inactive.
{noformat}
Not sure if those errors help.

> 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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