OpenConnect - VNC, MRD, SSHFS not working

[Nikos Mavrogiannopoulos]

On Mon, Aug 24, 2015 at 11:53 PM,  <tom.programs at gmail.com> wrote:
> I managed to connect to my university via OpenConnect instead of using CIsco AnyConnect. I manage even to run a ssh shell on a remote server.
>
> However I can't use VNC on the remote computers. I login successfully but I receive a completely black screen. The same exact thing happens with a Remote Desktop connection on a Windows machine. Also, using SSHFS to look at the same server to which I connect successfully using SSH doesn't work either. I have no working knowledge but I suspect the problems are connected to the UDP protocol.
> Anybody can help?

That looks line an MTU issue. Retry by reducing the MTU to verify
that. If that's the case I'd appreciate if you could test openconnect
with auto-mtu detection at:
https://github.com/nmav/openconnect-mine

[you'd need to compile with gnutls for that]

regards,
Nikos