Day 982.b Struggling with Local Area Network Configuration

Among the things that I would have liked to accomplish in this life would be to setup my own Local Area Network.

Back in 90s and at the age of 16, I tried to connect our two computers - This Pentium 3 and an older Celeron using coaxial cables.

I was not successful.

Now at the age of 20+ something, I have discovered Ubuntu and I am now trying to connect 3 PCs.

1. This old Pentium 3
2. A slightly younger Pentium 4
3. A slightly younger Celeron

We now have a network switch and some ethernet cables.

My sisters and I managed to play Tremulous! Unfortunately this was on Windows.