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From Mike Jumper <mike.jum...@guac-dev.org>
Subject Re: guacamole 0.8.3 "invalid login"
Date Sun, 07 May 2017 22:01:31 GMT
On Mon, May 1, 2017 at 11:41 PM, dieter-erich <dieter.blaas@meduniwien.ac.at
> wrote:

>      I have checked again: turbovncserver 2.1.1 is running and I can
> definitely reach localhost via vnc on port 5901 with turbovncviewer
> v2.1.1.
>
> However, when trying to run vnc over guacamole I find the following
> lines in syslog:
>
> May  2 08:23:13 ubuntu guacd[3224]: Protocol "vnc" selected
> May  2 08:23:13 ubuntu guacd[3224]: VNC server supports protocol version
> 3.8 (viewer 3.8)
> May  2 08:23:13 ubuntu guacd[3224]: We have 3 security types to read
> May  2 08:23:13 ubuntu guacd[3224]: 0) Received security type 19
> May  2 08:23:13 ubuntu guacd[3224]: Selecting security type 19 (0/3 in
> the list)
> May  2 08:23:13 ubuntu guacd[3224]: 1) Received security type 2
> May  2 08:23:13 ubuntu guacd[3224]: 2) Received security type 16
> May  2 08:23:13 ubuntu guacd[3224]: Selected Security Scheme 19
> May  2 08:23:13 ubuntu guacd[3224]: GnuTLS initialized.
> May  2 08:23:13 ubuntu guacd[3224]: Got VeNCrypt version 2.0 from
> server.
> May  2 08:23:13 ubuntu guacd[3224]: Unsupported VeNCrypt version.
> May  2 08:23:13 ubuntu guacd[3224]: Error instantiating client: UNKNOWN
> STATUS CODE:
>
> is there anything wrong with my turbovncserver? Am I missing anything?
>

I don't think you're missing anything per se, nor that TurboVNC is doing
anything particularly wrong, but it looks like libvncclient doesn't fully
support the security scheme used by TurboVNC. During security negotiation,
TurboVNC reports that it supports several methods including "VeNCrypt",
libvncclient chooses that method, and then subsequently finds out that the
version used by TurboVNC is actually unsupported and has to bail out.

Is there a way to configure TurboVNC to exclude the "VeNCrypt" method?

- Mike

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