Create sessions to access terminal on multiple computers on Linux

On a linux machine, nohub command can be used to keep a program running even if a terminal is closed. But if you want to use a session from more than one computer, screen command can be used. Matt Cutts has a good short tutorial on how to use screen for working on a session from more than one computers:
http://www.mattcutts.com/blog/a-quick-tutorial-on-screen/
http://www.mattcutts.com/blog/screen-power-tips-screenrc/