Authentication is the process of verifying a user’s credentials before he can log into the network. It is normally performed using a username and password. This provides a secure means of limiting the access from unwanted intruders on the network.
Software related problems can be any or a combination of the following: – client server problems – application conflicts – error in configuration – protocol mismatch – security issues – user policy and rights issues
There are three main network protocols supported: NetBEUI, TCP/IP, and IPX.