Instruction manual

22
Native VNC Client
This system implements the VNC protocol, so any off the shelf VNC
client can be used. There are over 17 different VNC clients available
and they should all work with this system. This system automatically
detects and makes use of certain extensions to the basic RFB protocol
that is provided by the leading VNC clients. Depending on your needs,
there are several popular freeware, shareware, and commercial VNC
clients available. Contact your system administrator or local software
vendor for assistance.
NOTE: Some native VNC clients may require a flag or setting indicating
they should use BGR233 encoding by default. If this flag is not set, you
may see a garbled picture and the client will fail. The Unix versions of
VNC require the flag -bgr233. For examples on using this flag, review
the commands in the following section.
SSH Tunnel (with Native VNC client)
If you are using OpenSSH, here is the appropriate Unix command to
use, based on the default settings on a machine at 10.0.0.34:
ssh -f -l admin -L 15900:127.0.0.1:5900 10.0.0.34 sleep 60
vncviewer -bgr233 127.0.0.1::15900
Same command, but using the WAN port:
ssh -f -l admin -L 15900:127.0.0.1:5900 10.0.0.98 sleep 60
vncviewer -bgr233 127.0.0.1::15900
Notes:
• A copy of these commands, with appropriate values filled in for your
current system setting, is provided in the on-line help page. This
allows you to “cut-and-paste” the required commands accordingly.
• You have 60 seconds to type the second command before the SSH
connection will be terminated.
• The port number “15900” is arbitrary in the above example and can
be any number (1025...65535). It is the port number used on your
client machine to connect your local SSH instance with the VNC