On Wed, May 1, 2019 at 4:36 PM Lance Gropper <
[email protected]> wrote:

> Hello All:
>
>
>
> I figured that one out, and can connect to TightVNC, but with RealVNC, I
> get:
>
>
>
> May  1 13:38:25 guacamole-post server: 13:38:25.717 [http-bio-8080-exec-9]
> INFO  o.a.g.r.auth.AuthenticationService - User "guacadmin" successfully
> authenticated from 10.17.102.91.
>
> May  1 13:38:32 guacamole-post server: 13:38:32.894 [http-bio-8080-exec-4]
> INFO  o.a.g.environment.LocalEnvironment - GUACAMOLE_HOME is
> "/usr/share/tomcat/.guacamole".
>
> May  1 13:38:48 guacamole-post server: 13:38:48.979 [http-bio-8080-exec-4]
> INFO  o.a.g.r.auth.AuthenticationService - User "guacamole-post"
> successfully authenticated from 10.17.102.91.
>
> May  1 13:38:54 guacamole-post guacd[5714]: Creating new client for
> protocol "vnc"
>
> May  1 13:38:54 guacamole-post guacd[5714]: Connection ID is
> "$ba73e3c4-c8eb-472b-bda7-680d64dbbbd0"
>
> May  1 13:38:54 guacamole-post guacd[6475]: Cursor rendering: local
>
> May  1 13:38:54 guacamole-post guacd[6475]: User
> "@7751b747-2f1b-41e4-b573-e8945971c277" joined connection
> "$ba73e3c4-c8eb-472b-bda7-680d64dbbbd0" (1 users now present)
>
> May  1 13:38:54 guacamole-post server: 13:38:54.832 [http-bio-8080-exec-6]
> INFO  o.a.g.tunnel.TunnelRequestService - User "guacamole-post" connected
> to connection "6".
>
> May  1 13:38:54 guacamole-post guacd[6475]: VNC server supports protocol
> version 5.0 (viewer 3.8)
>
> May  1 13:38:54 guacamole-post guacd[6475]: We have 5 security types to
> read
>
> May  1 13:38:54 guacamole-post guacd[6475]: 0) Received security type 13
>
> May  1 13:38:54 guacamole-post guacd[6475]: 1) Received security type 133
>
> May  1 13:38:54 guacamole-post guacd[6475]: 2) Received security type 5
>
> May  1 13:38:54 guacamole-post guacd[6475]: 3) Received security type 129
>
> May  1 13:38:54 guacamole-post guacd[6475]: 4) Received security type 192
>
> May  1 13:38:54 guacamole-post guacd[6475]: Unknown authentication scheme
> from VNC server: 13, 133, 5, 129, 192
>

I think RealVNC uses a custom authentication scheme, by default, that is
unsupported with anything but RealVNC.  You'll probably have to tweak the
RealVNC options to get it to work, but I'm guessing there's some sort of
RealVNC option for this.

Unfortunately this support is driven by the underlying LibVNC support, so
there's not a whole lot we can do within Guacamole to support this unless
LibVNC supports it.

-Nick

>

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