Network profile refers to what resources on each server are available on the network for use by other computers and which devices or people are allowed access on the network.
A Network Operating System NOS), such as Linux or Windows Server 2008, must be used in addition to the 'normal' operating system, such as Windows, on a server in a dedicated server LAN.
The Network Interface Card NIC) permits a computer to be physically connected to a network's cable, which provides the network layer connection among the computers in the network.