@madcaesar @otl It’s a small server running OpenBSD, configured to operate as a router and/or firewall.
Linux and the *BSDs can operate as very good routers and firewalls, usually being much more configurable and enabling you to do more complex than off-the-shelf consumer-level hardware routers. Using them on a small form factor computer with a cheap switch in front of them can give you a better performing and nicer to use alternative.
@Moneo @SigHunter Networking came to be when there were lots of different implementations of a ‘byte’. The PDP-10 was prevalent at the time the internet was being developed for example, which supported variable byte lengths of up to 36-bits per byte.
Network protocols had to support every device regardless of its byte size, so protocol specifications settled on bits as the lowest common unit size, while referring to 8-bit fields as ‘octets’ before 8-bit became the de facto standard byte length.