I have 3 Raspberry Pis, a 3B, a 3B+ and a Zero W.
The 3B is the first one I got and have started making it into my mini-server.
I got a battery pack for it so it can be on 24/7. My modem and router are also on a battery so they will stay on 24/7 also.
The Zero W has a camera on it and I am going to make that into a security camera that will send to the server.
I have a few old hard drives and usb sata adapters so I can store a few weeks of video on the server.
I originally got a 7" screen with it but it is not needed for a server so I am using it on the 3B+.
I just got the 3B+ and have not done anything with it except put it in the screen housing.
On this page I will put info on how I get everything to work as well as links to any other useful Raspberry Pi info I come across.
Download and install balenaEtcher if you haven't already.
Download Raspbian Buster Lite.
Run balenaEtcher, select the downloaded zip file and click "Flash!".
Once it is finished, remove the SD card from the computer and insert it into your Raspberry Pi.
Plug in all the cables to your Pi: keyboard, mouse, hdmi, network (if not a zero) and power last.
Once it has gone through its first bootup (the first is always longest) the default login is "pi" and password is "raspberry".
Type in "sudo raspi-config" to change the primary settings. Change numbers 1, 2 and 4. They should be self explanitory but see this for more details. Reboot when finished.