Install AdguardDNS

Install AdguardDNS

docker run --name adguardhome\
    --restart unless-stopped\
    -v /my/own/workdir:/opt/adguardhome/work\
    -v /my/own/confdir:/opt/adguardhome/conf\
    -p 53:53/tcp -p 53:53/udp\
    -p 67:67/udp -p 68:68/udp\
    -p 80:80/tcp -p 443:443/tcp -p 443:443/udp -p 3000:3000/tcp\
    -p 853:853/tcp\
    -p 784:784/udp -p 853:853/udp -p 8853:8853/udp\
    -p 5443:5443/tcp -p 5443:5443/udp\
    -d adguard/adguardhome



Deactivate DNSStubListener and update the DNS server address. Create a new file, 
mkdir /etc/systemd/resolved.conf.d
nano /etc/systemd/resolved.conf.d/adguardhome.conf 

and add the following content to it:

[Resolve]
DNS=127.0.0.1
DNSStubListener=no
Specifying 127.0.0.1 as the DNS server address is necessary because otherwise the nameserver will be 127.0.0.53 which doesn't work without DNSStubListener.

Activate a new resolv.conf file:

mv /etc/resolv.conf /etc/resolv.conf.backup
ln -s /run/systemd/resolve/resolv.conf /etc/resolv.conf
Stop DNSStubListener:

systemctl reload-or-restart systemd-resolved

luego apuntamos el dns de cada dispositivo o servicio que queramos proteger de la publicidad o los malware