VNC

//root
$ apt-get install tightvncserver

$ sudo adduser vusr


//vncusr
$ vncserver

http://www.realvnc.com/products/download.html
Free Edition

VNC Viewer vnc-4_1_3-x86_win32
a.b.c.d:5901

login as: vusr
vusr@10.11.12.210's password: ***********
Welcome to Ubuntu 11.04 (GNU/Linux 2.6.38-8-server x86_64)

 * Documentation:  http://www.ubuntu.com/server/doc

  System information as of Mon Nov 28 22:40:11 CST 2011


  System load:  0.27              Processes:           118
  Usage of /:   2.5% of 67.38GB   Users logged in:     1
  Memory usage: 2%                IP address for eth0: 10.11.12.210
  Swap usage:   0%

  Graph this data and manage this system at https://landscape.canonical.com/
Last login: Mon Nov 28 22:18:39 2011 from 10.11.12.218
vusr@u1104s64:~$ vncserver

You will require a password to access your desktops.

Password:
Warning: password truncated to the length of 8.
Verify:
Would you like to enter a view-only password (y/n)? y
Password:
Warning: password truncated to the length of 8.
Verify:
xauth:  file /home/vusr/.Xauthority does not exist

New 'X' desktop is u1104s64:1

Creating default startup script /home/vusr/.vnc/xstartup
Starting applications specified in /home/vusr/.vnc/xstartup
Log file is /home/vusr/.vnc/u1104s64:1.log

vusr@u1104s64:~$


//terminal turn on
vncserver

//default 5901 port

//vncpasswd