Share a simple folder in a linux network

[Insolit]

This is not a Knoppix related question, but since the operative systems I'm trying to connect are with Knoppix, i'm posting this question here.
Could someone for the sake of God explain me what to do to simply share a folder within two computers? Both computers are connected with a firewire cable and i can perfectly ping both.
Now i need to share a folder in order to write from one computer to the other... I searched over internet... but all I get is samba samba samba samba and more samba and some distributions specific ways of sharing folders... This is slowly driving me crazy, so I'd kindly ask you to please help me, before i destroy both computers.

[Zelmo]

If they're both Linux computers, then you just need to set up your /etc/exports with some basic stuff. Take for example:

/home/daren     192.168.1.0/255.255.255.0(rw)

This is one line from my exports file, and any other lines would be just like it but reflecting different directories and permissions. The first item is the directory you want to share over the network. The next item is a list of hosts on the network who are granted access to that directory (192.168.1.0 is equivalent to 192.168.1.*). After that you specify rw (read/write) or ro (read only). That's it!