So I have started a project and I would like to communicate between two or more pi's via an ethernet cable and without the use of an internet connection. I have read in another post on here that it is possible but I didn't feel that it gave enough info. So my questions are:
Can I just use any cat5/6 cable or is there a special type that I need?
Do I literally just connect the two pi's via their ethernet ports?
In Python how would I do the communication?
If I want to connect more pi's what do I use/how do I do it?