Network-wide bullshit-blocking setup with Blocky and Tailscale

I will use an Orange Pi 5 Plus, but any device, including single board computers, should work, as long as they can run the latest stable Debian or Armbian release.

Orange Pi 5 Plus

Unbound for recursive DNS resolver on 127.0.0.1:5335

Blocky for DNS proxy, ad-blocking, and malware-blocking on 0.0.0.0:53. Uses Unbound on 127.0.0.1:5335 as upstream resolver.

Tailscale with --accept-dns=false

unbound-resolveconf.service should be disabled, and /etc/resolv.conf should not be managed by any other service.

I just put the following contents into /etc/resolv.conf for the Orange Pi 5 Plus's local DNS resolution:

nameserver 9.9.9.9
nameserver 149.112.112.112

I have Blocky configured to use the strict strategy for the upstreams setting, so after a timeout of the topmost upstream server it will fallback to the next one, which is Quad9.

I have the Orange Pi 5 Plus's Tailnet IP address configured to be my Tailnet's global nameserver. This can be done through the Tailscale admin console under the DNS tab. So every device on my Tailnet that uses MagicDNS will be using Blocky and Unbound.

Blocky configuration

upstreams:
strategy: strict
groups:
default:
- 127.0.0.1:5335
- 9.9.9.9
- 149.112.112.112

blocking:
denylists:
ads:
- <https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts>
- <https://adaway.org/hosts.txt>
- <https://v.firebog.net/hosts/AdguardDNS.txt>
suspicious:
- <https://v.firebog.net/hosts/static/w3kbl.txt>
tracking:
- <https://gitlab.com/quidsup/notrack-blocklists/raw/master/notrack-blocklist.txt>
- <https://v.firebog.net/hosts/Easyprivacy.txt>
- <https://v.firebog.net/hosts/Prigent-Ads.txt>
malicious:
- <http://phishing.mailscanner.info/phishing.bad.sites.conf>
- <https://v.firebog.net/hosts/Prigent-Crypto.txt>
- <https://raw.githubusercontent.com/StevenBlack/hosts/master/alternates/fakenews/hosts>

clientGroupsBlock:
default:
- ads
- suspicious
- tracking
- malicious

ports:
dns: 53
http: 4000

prometheus:
enable: yes

caching:
minTime: 60s
maxItemsCount: 10000
prefetching: yes
prefetchMaxItemsCount: 2000

queryLog:
type: csv-client
target: /home/jas/dns-query-logs
logRetentionDays: 5
clientLookup:
upstream: 10.0.0.1
singleNameOrder:
- 1