URL AND DNS A SHORT INTRODUCTION Rachel White7/11/2014.

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Presentation transcript:

URL AND DNS A SHORT INTRODUCTION Rachel White7/11/2014

Learning Objectives To understand the terms URL and DNS Understand how they are used Understand why they are used

What do they stand for? U Uniform R Resource L Locator DNS DomainName System

URL Made up of three parts How: what protocol? Where: Which host? What: Path to the object required How: this declares the protocol to be used Where: this declares the address on the world wide web What: the path on the server

DNS Created as a memorable reference to a network and host Considered easier to remember than specific IP’s DNS Servers convert a Fully Qualified Domain name (FQDN) into an IP address Soton.ac.uk is a domain name is it’s IP Which would you find easier to remember?

All together now! Looking at our previous example can you now tell me the DNS of our URL? How: this declares the protocol to be used Where: this declares the address on the world wide web What: the path on the server Here is the Domain name!

Activity time In pairs work through the activity provided

In Conclusion DNS – Is an easy to remember reference to a network URL – Is the full address of the website (including the Domain Name)