Is there a technical way I can I stop my teenager going on face book etc

[mumski]

She has the attention span of a gnat and exams in 3 weeks time. I've tried everything threats/treats etc etc to get her to concentrate on her home work, but it's too easy for her just to pop up face book and other sites when she should be working. And I can't be there all the time.
Is there a way of preventing her accessing sites except ones she should be on such as the home work site for the school and google?

HELP

If you have a configurable firewall, you might be able to set it to block requests to facebook.

But another way would be to alter the "hosts" file on the computer to make facebook seem unavailable...

You would add an entry to the file such as:
127.0.0.1 facebook.com

Which should redirect requests for facebook.com to 127.0.0.1 (which is a loopback). But it depends how technically savvy your DD is. Even with this technique, she would be able to access facebook by using the direct IP address (not that hard to find out what it is).

Remove network cables or turn off wifi - this is astonishingly effective unless she has the net on her mobile.

take your modem to work

These sounds good suggestions. I'll give them all a try in the next few days I suspect. She isn't that savvy so they will work
many thanks for all suggestions

I use a program called k9 which is free to download and blocks sites unsuitable for kids. You can specify certain sites too that you don't want them to see. EG i blocked youtube for my 8 yr old kept looking up car crashes. It would mean she could still use internet for revision. It was recommended by which.

Ultimately, though, it's up to her. You can take FB away but she'll find something else. A passing fly, say, or an urgent need to sharpen all her pencils. An easily distracted child will only really learn to focus once they've realised what it's like to fail.