hosts file based ad blocking for OpenWRT

####To use it:

• Download the ad block script, save it to /etc/, and make it executable.

wget --no-check-certificate https://raw.githubusercontent.com/jjack/openwrt-adblock/master/adbblock.sh -O /etc/adblock.sh
chmod +x /etc/adblock.sh

• Tell dnsmasq to use the hosts that adblock.sh generates.
• If you have LuCI, Network > DHCP and DNS > Resolv and Hosts Files > Additional Hosts files

/tmp/block.hosts

• If you don't, add the following to /etc/config/dhcp under 'config dnsmasq'

list addnhosts '/tmp/block.hosts'

• Run the adblock script.

/etc/adblock.sh

####Run on boot.

• Add the following to /etc/rc.local (In LuCI, it's System > Startup) [the sleep is to make sure that your connection is fully up]

sleep 15 && /etc/adblock.sh &

####Optional - serve a 1 pixel transparent .gif for all of the newly un-routable things.

wget --no-check-certificate -O /www/1.gif https://upload.wikimedia.org/wikipedia/commons/c/ce/Transparent.gif
uci set uhttpd.main.error_page="/1.gif" && uci commit
/etc/init.d/uhttpd restart