Remote Helpdesk on Linux With GNU Screen
Remote Helpdesk and Remote Administration
screen is a very useful program which in effect gives you multiple console screens in the same window. It's handy if you're using a console rather than an xterm, or if you're connected to another machine, as it means you can do multiple things at once without having to move to another console or open another ssh connection. Even more useful if you're working remotely: If your connection falls over while you're still in a screen session, you can ssh back to the machine and reattach the screen (with screen -r) and get straight back to where you were, rather than having to start over.
A final screen trick enables you to remotely look over a user's shoulder if you're trying to fix a problem.
Log on to the user's machine as him, then type
screen -S debug
Then, get him to type
screen -x debug
and he'll join your screen session. After this, whatever he does will be replicated on your screen (and vice versa). ('debug' is the identifier; any other name would also be fine.) This can save a lot of time when trying to track down a problem or to explain a solution!
Article courtesy of Serverwatch
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