[thepostman0]

Nice.

Does anyone know of any all-in-one hardware that has ADSL, 5 switch ports and WiFi, that is Linux capable?

[treffer]

Depends on the level/speed of the line. ALLNET had a VDSL spf modem. No good diagnostics but easy to add to any model.

OpenWRT supports a few lantiq systems with xDSL modems.

I was running both, but in the end switched to bridge mode on a dedicated modem.