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<b><i>This section will document how to run your HDA as a network wide ad-blocking tool, utilising DNS redirects and a small pixel server.<br /></i></b>
The work here was based on: https://sfxpt.wordpress.com/2011/02/21/the-best-ad-blocking-method/.
Pixelserv is a webserver which simply serves 1x1 blank pixels. By redirecting web requests for adverts to our pixelserver, ads are replaced by this 1x1 pixel leaving the target webpage intact. This will work on all devices across your network, removing the need for software-based solutions on each device.
A shell script get-adlist.sh will update the list of blocked domains (stored as /etc/dnsmasq.adblock.conf) whever you run it. You can also manually edit the list and remove domains that you wish to see (in the case of wrongly blocked domains).
= Fedora 19 or Greater=
Precusors -
*You'll need net-tools installed to use ifconfig
yum install net-tools
* You also need a file editing tool. Vi will suffice, however nano is a bit more user friendly.
yum install nano
* This guide assumes your network interface is named p2p1 and your HDA IP address is 192.168.1.2. Check with ifconfig, and change this guide where neccessary.
==Get Ad List==
* Copy and paste the following into it
#!/bin/sh
# Down Download the DNSmasq formatted ad block list curl <nowiki>"http://pgl.yoyo.org/adservers/serverlist.php?hostformat=dnsmasq&showintro=0&mimetype=plaintext" </nowiki> | sed "s/127\.0\.0\.1/192.168.1.99/" > /etc/dnsmasq.adblock.conf
# Restart DNSmasq
* Change permissions on the shell file
chmod -v 755 /usr/local/bin/get-ad-block-list.sh
* Run the shell file
/usr/local/bin/get-ad-block-list.sh
==Change DNSMasq config==
DNSMasq reads the adlist file and redirects DNS requests as configured.
* Add the block list to DNSMasq configuration
echo "conf-file=/etc/dnsmasq.adblock.conf" >> /etc/dnsmasq.conf
* Restart DNSMasq echo "conf-file=/etc/service dnsmasq.adblock.conf" >> /etc/dnsmasq.confrestart
==Bind Apache to main IP address==
By default, Apache will try to use all IP addresses. We require an IP address later in the process and so we have to tell Apache only to use the standard HDA address.
* Edit the Apache config file using a file editor:
nano /etc/httpd/conf/httpd.conf
==Pixel Server==
The pixel server is where we're redirecting adverts to. A simple 1x1 pixel is served on the IP address specified.
* You need to download Pixelserv to the HDA:
wget <nowiki>http://proxytunnel.sourceforge.net/files/pixelserv.pl.txt</nowiki>
* Edit pixelserv using a file editing program of your choice
nano /usr/local/bin/pixelserv
* Change the IP address to a free one of your choice (eg. 192.168.1.99)
* Change permissions
chmod 755 /usr/local/bin/pixelserv
* Create file /etc/init.d/pixelserv
nano /etc/init.d/pixelserv
and copy the following to it (changing the IP addresses and interfaces where neccessary):
#! /bin/sh
# /etc/init.d/pixelserv
chmod 755 /etc/init.d/pixelserv
* To bring the new interface up and start pixelserv
/etc/init.d/pixelserv start
To keep the list updated weekly, do the following:
ln -s /usr/local/bin/get-ad-block-list.sh /etc/cron.daily/get-ad-block-list
