The #OpenBSD router guide looks at how to use "low end" hardware to build an OpenBSD router with firewalling capabilities, segmented local area networks, DNS with domain blocking, DHCP and more https://www.unixsheikh.com/tutorials/openbsd-router-guide/
@jpmens I didn't read it entirely but I appreciate the reuse of old hardware to turn it into a very useful device.
The DNS DoH blocking is interesting too and it seems a topic of interest to the author https://codeberg.org/unixsheikh
I wish that person mentioned queueing and traffic shaping, PF is very good at it but it's not always obvious to setup or even known.
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