systemd-service-hardening VS Pi-hole

You may also want to look into hardening systemd services, e.g. https://www.ctrl.blog/entry/systemd-service-hardening.html or https://github.com/alegrey91/systemd-service-hardening, you can find all the options at https://www.freedesktop.org/software/systemd/man/systemd.exec.html.

Si te preguntas, ¿por qué no usar Adguard o Pihole? 🤔

This is an overreaction, almost to the point of absurdity.

Risks inherent to pipe installers are well understood by many. Using your logic, we should abandon Homebrew [1] (>38k stars on GitHub), PiHole [2] (>46k stars on GitHub), Chef [3], RVM [4], and countless other open source projects that use one-step automated installers (by piping to bash).

A more reasonable response would be to coordinate with the developers to update the docs to provide alternative installation methods, rather than throwing the baby out with the bathwater.

[1] https://brew.sh/

[2] https://github.com/pi-hole/pi-hole

[3] https://docs.chef.io/chef_install_script/#run-the-install-sc...

[4] https://rvm.io/rvm/install

Pi-hole to block ads and tracking for my less technically savvy relatives

https://pi-hole.net/

I ran a competing project[0] on my home network for a few years before I discovered NextDNS[1]. What I lost in performance (requests don't leave my house) I gained in portability: ALL my devices can take advantage – at home and away – and time-saved. PiHole works 90% of the time, but when it did stop working, I'd have to spend a bit of time fixing it. At $20/year, I simply couldn't compete with NextDNS.

Note: This isn't a shill for NextDNS; I love these kinds of projects and think they absolutely should exist, but NextDNS just happens to be one of those dead-simple SaaS tools that is an insanely good value.

0 - https://pi-hole.net/

1 - https://nextdns.io

It definitely IS an option, but at the network level.

https://pi-hole.net/

It runs on damn near everything, and is a DNS level adblocker for the whole network.

I recently switched to Wipr [0]. It’s dead simple to use, and will auto update its filter lists in the background.

Adguard [1] is a decent free option.

I also use a Pi-hole [2] on my network.

[0] https://kaylees.site/wipr.html

[1] https://adguard.com/en/adguard-safari/overview.html

[2] https://pi-hole.net/

Are you trying to build a DNS proxy (similar to Pi-hole) that intercepts DNS requests and checks for the ones that look harmful? If so, I would suggest trying to separately build a DNS client and a DNS server, before trying to integrate them together. Start with Beej's Guide to Network Programming if you need to learn the basics of sockets, and then take a look at the documents that define the DNS protocol itself (RFC1034 and RFC1035).

Setup a pi-hole.

It's definitely not as simple as installing an app on your phone, but I run a Pi-hole on my home network, and it does block ads in many games.