On Thu, Oct 28, 2021 at 10:03 PM Nick Khoo <[email protected]> wrote:
> Hi Nick, > > > > VNC built-in into this product. > > ADDERLink ipeps | Adder Technology > <https://www.adder.com/en/kvm-solutions/adderlink-ipeps> > > MAN-AL-IPEPS.pdf (amazonaws.com) > <https://adder-assets.s3.eu-west-1.amazonaws.com/s3fs-public/2020-05/MAN-AL-IPEPS.pdf?g_SRqUZIhuFyMRHWxJHsA2uhuQjeAlWn=> > > > >From looking at that documentation it appears that this product relies on RealVNC for the server-side, and, more specifically, the RA2 authentication protocol. I do not believe that LibVNC (and, thus, Guacamole) supports this authentication mode, and the web searching I've done indicates that there isn't much outside of RealVNC that does support it. Even TigerVNC, which seems to have some code to recognize when it's being requested, doesn't seem to have anything that actually processes that authentication mechanism. I suspect that when you enter the default password the VNC server allows the connection to negotiate down to a "lesser" authentication protocol and the connection continues. -Nick >
