R.P. wrote:
> Hi,
>
> I'm using VNC over an OpenVPN connection to do home-work.
> Connection is around 1 MBit throughput synchronous.
>
> server: LibVNCServer 0.7.1 (Linux - SuSE 10.0)
> client: xvnc4viewer 4.1.1+X4.3.0-21 (Linux - Debian Etch)
>
> It works but I want to know if there are some tricks to accelerate
> the connection.
> The only thing I did was to start the vncviewer with the LowColourLevel=1 (64 colors).
>
There are a fair number of different vnc servers and clients, with
varying support for compression systems. Personally, I've used TightVNC
(between windows systems mostly, but these are cross-platform programs)
which has a number of tighter compression options. Check what your
server-client combination supports, and consider TightVNC as an alternative.
Also consider what you are sending over the link - avoid trying to do
heavy graphics.
> May be there are some other measures to speed up the connection.
>
On the vpn, you can enable comp-lzo for compression. It won't help if
the vnc traffic is already compressed, but it can help for other traffic
over the same link.
> Do other options beside VNC exist to access the remote X system ?
>
Google for nomachine and freenx.
> Thomas