Alter the hosts file so that the addresses you disapprove of are
redirected either to the localhost or to anotehr machine.
That requires keeping superuser/admin privileges to yourself.
Or do transparent proxying thoeugh a squid fitler, which lets you get
more imaginative with redirection, with *.facebook.com rather than
having to list all their machines.
--
Adrian Midgley http://www.defoam.net/
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