Well, might be a good place to start to make some use of Unix under the hood. O’Reilly has an article about Unix networking:

“This excerpt from Learning Unix for Mac OS X Panther introduces Unix networking: remotely accessing your Mac from other computers and copying files between computers. It also shows you how the Connect to Server capability of Terminal can make common connections a breeze once you’ve set them up the first time.”
[O’Reilly MacDevCenter.com]