TCP socket program where each node initiates connection with some nodes and accepts connection with the others

[Kathryn Bean]

I am designing application where each node initiates connection with nodes 
and accepts connection with other nodes.  This application will be running 
on Sun Unix platform.   I think each node should perform dual roles, be a 
TCP client and a TCP server and executes client and server codes in two 
different threads.  Is this approach correct?  How should my "server" accept 
new connections?  One node can read several incoming messages and send 
messages to different nodes.

Take care.
Kathryn