Chris,
That will work OK although he may need to use nano (I think OSX lost pico a few versions ago !)
But that only prevents the laptop's browsers in normal use from accessing FB directly
If Paul's daughter tries the
www.Securitales.com proxy or some of the others - its designed to get around this and it will do it seamlessly.
Try the 10 minute trial - it even defaults to Facebook's entry page immediately without the user needing to type a thing !!!
So you can surmise that this is their biggest user base.
Once she asks her friends how to get around it they will suggest that is how its done !
If in fact they dont give her the line by line steps or send her a script on how to sudo the hosts file.
I guess it might end up a war of attrition - see who gives in first.
Each step Paul takes to restrict is countered by a step to circumvent, correct or avoid !
Let us know how you go Paul - I have this to look forward to in a few years !
Worse yet - I am expecting my kids will be computer savvy.
Rally