freebsd / gateway / parental control

[zigniew szalbot]

Hello,

I am looking for advice. I have a dlink router/modem that connects to my
ADSL line. At some point I would like to use an old pc with freebsd on it
to sit between the router and the rest of my home network.

What kind of set up should I be aiming for to make it possible?

On the software side I am also looking for some kind of parental control
utility. I guess I can use pf. But would that be enough? I think it would
have to be something that would allow me to define keywords based on which
sites containing them would get automatically blocked on the fbsd gateway.
I'd rather use open source solutions.

Many thanks in advance!

Zbigniew Szalbot