README_en.md

ADBlock DNS

• create own adblock dns using rasberrypi and dnsmasq
• create own adblock dns using bind8 based dns cache server

Basics

Advertisements are usually located on ad.download.cnet.com or similar addresses. This program create DNS that maps these addresses to 127.0.0.1.

Based on DNSMASQ

How to use

1. Install dnsmasq on rasberrypi.

raspberrypi ~ $ sudo apt-get install dnsmasq

2. Clone this project on rasberrypi.

raspberrypi ~ $ git clone https://github.com/shuggiejang/adblock_dns.git

3. Get adblock filters and custom custom_ad_domains.

raspberrypi ~ $ cd adblock_dns/
raspberrypi ~/adblock_dns $ ./update_adblock_filter.sh
raspberrypi ~/adblock_dns $ vi custom_ad_domains.txt

4. Run the following command.

raspberrypi ~/adblock_dns $ ./update_dns.sh

5. Update DNS on your router(once needed).

raspberrypi ~ $ ifconfig eth0
eth0      Link encap:Ethernet  HWaddr b8:27:eb:72:9a:d3
          inet addr:192.168.0.8  Bcast:192.168.0.255  Mask:255.255.255.0
...

Based on BIND8

How to

1. Do the following instructions (on Synology NAS) https://synologytweaks.wordpress.com/2015/08/23/use-synology-as-an-ad-blocker/

2. Check ad-blocker.db is created and ad-block dns is working After enabling SSH port on Synology WebUI, you can check the followings.

$ ssh root@192.168.0.XX

DiskStation> cd /volumeX/@appstore/DNSServer/named/etc/zone/data

DiskStation> ls -1
ad-blocker.db
null.zone.file

DiskStation> cat null.zone.file
zone "null.zone.file" {
    type master;
    file "/etc/zone/master/null.zone.file";
    allow-transfer {61.41.153.2;8.8.8.8;};
    allow-query {any;};
};
include "/etc/zone/data/ad-blocker.db";

DiskStation> tail -n 1 ad-blocker.db
zone "zypenetwork.com" { type master; notify no; file "/etc/zone/master/null.zone.file"; };

Check that registered domains are connected to the 127.0.0.1

$ ping -c 1 zypenetwork.com
PING zypenetwork.com (127.0.0.1): 56 data bytes
64 bytes from 127.0.0.1: icmp_seq=0 ttl=64 time=0.047 ms

It is needed to update DNS on your router(once needed).

3. Create and apply ad-blocker.db (bind8 based config). And re-launch DNS server.

$ ./update_bind8_conf.sh
bind8 configuration file created; ad-blocker.db

$ scp ad-blocker.db root@192.168.0.XX:/volumeX/@appstore/DNSServer/named/etc/zone/data/ad-blocker.new

DiskStation> mv ad-blocker.db  ad-blocker.bak
DiskStation> mv ad-blocker.new ad-blocker.db

DiskStation> ls -al
-rw-r--r--    1 nobody   nobody      527217 May 15 12:01 ad-blocker.db
-rw-r--r--    1 root     root        448997 May 15 13:38 ad-blocker.bak
-rw-r--r--    1 nobody   nobody         183 May 15 11:47 null.zone.file

Details

1. Remove duplicates and create DNS configuration.
2. Remove subdomains if a higher domain exists.

# ad-domains
raspberrypi ~/adblock_dns $ grep -Hrn realclick ./*.txt
./ad_punisher_abp.txt:382:||realclick.co.kr
./custom_ad_domains.txt:74:realclick.co.kr
./custom_ad_domains.txt:112:click.realclick.co.kr
./custom_ad_domains.txt:113:ads.realclick.co.kr
./custom_ad_domains.txt:114:ptimg.realclick.co.kr
./custom_ad_domains.txt:115:rsense-ad.realclick.co.kr
./custom_ad_domains.txt:116:ade.realclick.co.kr
./custom_ad_domains.txt:117:img.realclick.co.kr
./custom_ad_domains.txt:118:adr.realclick.co.kr
./custom_ad_domains.txt:119:hcimg.realclick.co.kr
./custom_ad_domains.txt:120:image3.realclick.co.kr
./custom_ad_domains.txt:121:image13.realclick.co.kr
./custom_ad_domains.txt:122:mdimg.realclick.co.kr
./custom_ad_domains.txt:123:ptimg.realclick.co.kr
./custom_ad_domains.txt:124:scimg.realclick.co.kr
./easylist.txt:24887:||realclick.co.kr^$third-party

# DNS configuration
raspberrypi ~/adblock_dns $ grep -Hrn realclick ./*.conf
./dnsmasq.adlist.conf:3769:address=/.realclick.co.kr/127.0.0.1 #realclick