Hello selfhosted.
My router just burnt up and instead of buying a new one, I’m thinking of turning my own built NAS/home server into a router. Is this possible?
The server in question is a normal computer running debian, where I have a few disks in RAID and host some web services. The motherboard only has one RJ45 port, so my guess is that I have to at least get a network card that supports 2 ports. I’m no stranger to linux but physical networking is not my home field, though I’m very interested.
If someone could point me in the right direction, I would be more than happy.
Do not do that. You need to set up VLANs and proper separation between them on both the switch and the router, assuming the switch even supports tagged trunk lines. If you don’t, you’re just connecting all of your hosts to the unfiltered internet.
Technically yes, but as long as your WAN gateway doesn’t provide a route, clients will only know how to reach your own gateway.
But your isp modem will have total access to your local devices.