Network service

A network service is an abstracted function that is provided by a computer network users and devices participate. The focus is the fact that a service is a self-contained functional component from the user's perspective, this function can be realized technically one or more network application layer protocols. For example, the World Wide Web, a service that provides the Internet; this service is technically realized via the network protocol Hypertext Transfer Protocol.

Network services is common that the available resources are shared. In many systems, the so-called services are offered by service providers who can use other workstations to access the resources. Those who request these different services and use, it is called service customers.

Basically, there are different ways of working of a network operating system:

  • Server - centric networks
  • Peer-to -peer networks

Network services at a glance

What services exist in the network and how they are used, can decide which network operating system used. There are core network services:

  • Addressing ( DHCP)
  • Authentication ( RADIUS)
  • Configuration (TFTP, HTTP)
  • IP address management (DHCP)
  • Name resolution (DNS)
  • Time ( NTP)

In addition, there are the following:

  • Printing service
  • News Service ( e-mail)
  • Application service
  • Database Service
Service (systems architecture) Trivial File Transfer Protocol Daemon (computing) List of TCP and UDP port numbers
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