fb_iptables.sh

# Block facebook.com mon-fri, 08:00 - 17:00, from desktop net
# Fetches all subnets registered to Facebook and it's domain aliases
for i in $(whois -h whois.radb.net -- '-i origin AS32934' |
           awk '/^route:/ { if(!uniq[$2]++) print $2 }'); do
    $ipt -A FORWARD -s $desktop_net -d $i \
         -m time --timestart 08:00 --timestop 17:00 --weekdays Mon,Tue,Wed,Thu,Fri \
         -j DROP
done