Network Operating System

Topics: Internet, Domain Name System, IP address Pages: 3 (773 words) Published: May 26, 2008
A Network Operating System is an operating system that includes special functions for connecting computers and devices into a network. The term network operating system, however, is generally reserved for software that enhances a basic operating system by adding networking features. Network operating system implements protocol stacks as well as device drivers for networking hardware. This paper will identify the Domain Name Server (DNS), Web Server, Windows Internet Naming Service (WINS), and the Cisco Internetwork Operating System (IOS).

Domain Name Server (DNS)Domain Name Server, also known as DNS, is an Internet service that translates domain names into IP addresses. All addresses in the internet are bases on IP addresses. The job of the DNS is to translate the IP Addresses into domain names. DNS are very important but completely hidden from the internet. For example instead of typing 69.147.11.210 we can type www.yahoo.com and get the same result.

The Domain Name Server (DNS) distributes the responsibility for assigning domain names and mapping them to IP networks by allowing an authoritative server for each domain to keep track of its own changes, avoiding the need for a central registrar to be continually consulted and updated.

DNS is a database system that translates a fully qualified domain name into an IP address. If a DNS does not know how to translate a particular domain name it will asks another DNS until the correct IP address is returned.

Web ServerA web server is a computer that delivers Web pages. Every Web server has an IP address and possibly a domain name. For example, if you enter the URL http://www.yahoo.com in your browser, this sends a request to the server whose domain name is yahoo.com/mail.html. The server then fetches the page named mail.html and sends it to your browser.

Any computer can be turned into a Web server by installing server software and connecting the machine to the Internet. There are many Web server...
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