Simple approach: Ads Blocking

You have already installed the DNS service to manage your home network DNS (and DHCP), so you can easily use it to filter ads as well.

First of all you need a good, comprehensive and up-to-date block list. I suggest you using the official OISD blocklist, but there are tons out there for you to pick and choose. Just check out that your preferred supplier use the format you need (Unbound or DNSMasq).

Download the block list for the first time by hand:

wget 'https://big.oisd.nl/unbound' -O /etc/unbound/adservers.conf

Just add a cron task to daily update your blocklist. Add the following line:

0 0 * * * wget 'https://big.oisd.nl/unbound' -O /etc/unbound/adservers.conf

to root's crontab:

crontab -e

To add this block list to Unbound, you need a row in the unbound configuration file like:

        include: /etc/unbound/adservers.conf

as i have already shown you in the Unbound setup page, and you are all set.

DNSMasq support two different ways to add blocklist. One is via custon hosts files, the other is via custom configuration files. OISD blocklists are in configuration files format.

To use hosts format, just download your file and put it somewhere (i will assume /etc/adblock.hosts) and add the following line to your /etc/dnsmasq.conf:

addn-hosts=/etc/adblock.hosts

and reload dnsmasq.

To use configuration format, create a folder called /etc/dnsmaq.d put your file inside and add the following to your /etc/dnsmasq.conf:

conf-dir=/etc/dnsmasq.d,*.conf

this will load any file with .conf extension in that folder.

Now you need to download the OISD blocklist in that folder.

mkdir /etc/dnsmasq.d
wget 'https://big.oisd.nl/dnsmasq2' -O /etc/dnsmasq.d/oisd.conf
/etc/init.d/dnsmasq reload

This will work in addition to the AdGuard DNS you have already setup, but this will prevent any query going out to AdGuard for those domain. This is even more efficient.

For automatic updates, just add a cron task to daily update your blocklist. Add the following line:

0 0 * * * wget 'https://big.oisd.nl/dnsmasq2' -O /etc/dnsmasq.d/oisd.conf

to root's crontab:

crontab -e

and you are all set.