debdnsmasq

network wide ad-blocking on debian / ubuntu

install dnsmasq

$ apt-get install dnsmasq

• mv the default /etc/dnsmasq.conf to /etc/dnsmasq.conf.backup
• then vi /etc/dnsmasq.conf
• add this:

domain=raspberry.local
resolv-file=/etc/resolv.dnsmasq
min-port=4096

# use google dns
server=8.8.8.8
server=8.8.4.4

# (optional) additional hosts file
# useful for adding network wide local domains or 
# blocking domains which are not listed in /etc/dnsmasq.block.conf
addn-hosts=/etc/hosts_extra

# ad servers list
conf-file=/etc/dnsmasq.block.conf

# max cache size for dnsmasq
cache-size=10000

• add the file to sysupgrades

echo "/etc/hosts_extra" >> /etc/sysupgrade.conf
echo "/etc/dnsmasq.block.conf" >> /etc/sysupgrade.conf

• add the following as a bash script and run as root cronjob (every week, at teatime)

#!/bin/bash

curl -s "http://pgl.yoyo.org/as/serverlist.php?hostformat=dnsmasq-server&showintro=0&startdate%5Bday%5D=&startdate%5Bmonth%5D=&startdate%5Byear%5D=&mimetype=plaintext" >> /etc/dnsmasq.block.conf

/etc/init.d/dnsmasq restart

• setup this server with a static IP
• point your routers default DNS to this IP.
• reconnect to the network on your devices

you should not see any more ads now.