I use RHEL 3 and use full install when install the server , I have just start the vncserver on this server and use the vnc client to connect it via pc , I can connect it but found that nothing in the screen , even I right click or press any key , could advise how can I use ? thx

I think that the first step would be to verify that you can ping the RH server. This is to verify that you have a network connection to the server. Another thing to check is the RH firewall setup. VNC uses certain ports. The firewall needs to allow these ports to communicate with your Windows PC before your VNC client can connect. I believe that you need ports 5500 and 5900 open to make the connection. According to the X's vncviewer program, if you are listening for reverse connections, this uses port 5500+display number. WinVNC uses this for the "Add New Client" menu option.

There are a few other ways to work on your RH computer remotely from the PC. One is to use a ssh client such as Putty. Another is to install X windows on Windows. There are some commercially available x windows servers available. There also is Cygwin/X which is free. With cygwin/x you could use your Cygwin X server as the DISPLAY that the RH client programs use.

You may want to read through your VNC documentation, as well as the manpages for Xvnc, vncserver, vncviewer, vncpasswd, vncconnect and ssh.

Go into your home directory on the server and in the .vnc directory edit the xstartup script. Here's what it needs.

#!/bin/sh
# Uncomment the following two lines for normal desktop:
unset SESSION_MANAGER
exec /etc/X11/xinit/xinitrc

[ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup
[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources
xsetroot -solid grey
vncconfig -iconic &
xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &
twm &

thx replies ,

I can connect the RH server via vnc , but when I use the RH , I only see a blank screen without any words , menu bar etc, how can I use the gui mode ? thx.

thx replies ,

I can connect the RH server via vnc , but when I use the RH , I only see a blank screen without any words , menu bar etc, how can I use the gui mode ? thx.

Look in the nvc setup and see if there is an option to forward X windows traffic.
Also go through the security policies to see if it is allowed.

If you use KDE on the RH server, consider using Krfb. I've used it with TightVNC between a SuSE host and an XP host.

The Administration Manual probably has sections on security and remote desktop. There may be something else we haven't mentioned that may be in the manual.

Was a dupe. Sorry.