How do I configure vncserver to start GNOME or KDE by default in Red Hat Enterprise Linux ?

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问题

How do I configure vncserver to start GNOME or KDE by default in Red Hat Enterprise Linux ?
Why does vnc start a basic window manager in session ?

环境

Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 5
Red Hat Enterprise Linux 4

决议

Edit the file ${HOME}/.vnc/xstartup file to run gnome-session for GNOME or startkde for KDE instead of twm as shown below

To start bare minimum desktop, use the below config

#!/bin/sh[ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresourcesxsetroot -solid greyvncconfig -iconic &xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &twm &

To start GNOME, use the below config

#!/bin/sh[ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresvncconfig -iconic &dbus-launch --exit-with-session gnome-session &

To start KDE, use the below config

#!/bin/sh[ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresourcesvncconfig -iconic &startkde &

Comment

To configure vncserver, refer What are different ways to setup VNC on Red Hat Enterprise Linux ? .
On RHEL6, vncserver will start users default desktop which usually is GNOME.
To reset "xstartup" file, it delete and restart vncserver .