Network service
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This article is about services provided by and to networked computers. For information about
Internet connections, see Network service provider. For a hierarchical list of network services,
see Category:Network service.
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In computer networking, a network service is an application running at the network application
layer and above, that provides data storage, manipulation, presentation, communication or other
capability which is often implemented using a client-server or peer-to-peer architecture based on
application layer network protocols.[1]
Each service is usually provided by a server component running on one or more computers (often a
dedicated server computer offering multiple services) and accessed via a network by client
components running on other devices. However, the client and server components can both be run
on the same machine.
Clients and servers will often have a user interface, and sometimes other hardware associated with
it.
Contents
1Examples
2Application layer
o 2.1TCP-IP network services
2.1.1Port numbers
o 2.2TCP versus UDP
3See also
4References