I have no knowledge of networking.
How shall i get started?What are benfits of networking?
I guess you are asking about LAN?
In kde I use fish://
You need to setup ssh on the machine you want to access from another computer on the LAN
This may help you: http://susewiki.org/index.php?title=Public_Key_Authentication_with_SSH
or check
Linux HOWTOs and Tutorials: Suse Linux 10.0, 10.1 openSUSE 10.2, 10.3, 11.0, 11.1
The Internet.
Very broad question, very broad answer. rotfl!
More seriously, here are some guides basic networking:
Networking Basics - Essential Concepts in Computer Networking
Linux Network Configuration
Hope that helps. 
If you’re interested in networking in general - just follow srschinfano’s links. If you have network problems in particular - just let us know about your problem.