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Old 08-03-2006, 09:25 AM   #1
Registered: Aug 2005
Location: Milan, Italy
Distribution: Ubuntu
Posts: 54

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Mozilla Firefox - limited user time

Hi there,

is it possible to limit a user time on Firefox? If so could someone please explain how to do it. Is there an addon or software for Firefox?

Old 08-03-2006, 10:24 AM   #2
Registered: Aug 2005
Location: Milan, Italy
Distribution: Ubuntu
Posts: 54

Original Poster
Rep: Reputation: 15
I did find a programme that is called "User Time Control" but of course it is only for Windows... Someone knows if there is also one for Linux?
Old 08-03-2006, 11:05 AM   #3
Registered: Nov 2005
Location: New Jersey, USA
Distribution: SuSE
Posts: 492

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What is the specific purpose of this? And how robust do you want it to be?

1) Try a search through the Firefox extensions. I'm almost sure that I've seen a few which are dedicated to this purpose, for use at cyber cafes and such.

2) I also believe there are one or two browsers based on firefox which have this feature included. Try looking through sourceforge and for them.

What is the purpose? Do you want to bill this, or just keep users from browsing the web too much? If you just want to annoy your users you can write a little shell script to exec every 2 minutes or so that runs a
ps -A
and then kills all firefox-bin processes that are over X minutes old. The user could restart right away, but it would probably keep users off of the web.

Also, you need to take into account whether the system is closed or not. If this is a cyber cafe system, and all the user can do is print and run firefox, that's good. Maybe you could also make sure that X will only allow firefox to run, though I don't know how to do this.

If it is a system where the users have write access, you should at least put
ps -A | grep firefox
into a log file, as it would be all too easy to install a copy of firefox in a user's /home and circumvent the time restrictions. Though, there's still the possibility of using another browser.

If you're serious about the limits, you should also monitor all activity on port 80 of the machine and make sure they're not getting by anytoher way. Though a proxy could also bypass this.


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