Named DNS Adblocker

named-dns-adblocker.sh

#!/bin/bash
# Crontab
# $ crontab -e
# Update named adblock every day at 4am
# 0 4 * * * /opt/named-adblock/update.sh

# Named
# Write this into your named.conf file
# include "/etc/bind/named.conf.adblock";

# Write this into your named.conf.options file
#options {
#	directory "/var/cache/bind";
#
#	allow-recursion {
#		localhost;
#		localnets;
#	};
#
#	dnssec-validation no;
#
#	listen-on-v6 { any; };
#};

# Drop this into your /etc/bind directory
# File > null.zone.file

# $TTL 86400
# @	IN	SOA	ns1.randomdomainname.adm.	dns-admin.randomdomainname.adm. 2026061101 28800 7200 864000 86400
#
# ; ################ NAMESERVER ################
# @	IN	NS	ns1.randomdomainname.adm.

# The actual script
# Vars
HEREAMI="$(dirname "$(readlink -f "${0}")")" # e.g /opt/named-adblock
URL="https://pgl.yoyo.org/adservers/serverlist.php?hostformat=bindconfig&showintro=0&zonefilename=/etc/bind/null.zone.file&mimetype=plaintext"

# Download adblock file
curl -s ${URL} -o /etc/bind/named.conf.adblock

# Set last updated in file, or commit out for no logs.
echo "Last updated: $(date +%d.%m.%Y) at $(date +%H:%M:%S)" > ${HEREAMI}/last_updated.txt

# Restart bind9/named
/usr/bin/systemctl restart named

# Exit script
exit 0