Names n Stuff
Names n Stuff
Objectives
• Know what is meant by:– Internet– Intranet– URL – Uniform Resource Locator– URI – Uniform Resource Identifier– Protocol
• Understand the parts of a URL– http://www.google.com/phone/offers
Traceroute – showing the steps
• Try it• http://centralops.net/co/• Put in a web address……• Be patient
The big picture
ICANN IETF IABThe councils
RegistrarRegistrar
Registrar Verizon ATT NTT Deutche Telekom
BT Cable and Wireless
Sky PlusNet
You
Names P192 of the Book
URI versus URL
• What is the difference?
URI versus URL
• What is the difference?
“A URI is an identifier for some resource, but a URL gives you specific information as to obtain that resource.”“ A URI is a URL”“Generally, if the URL describes both the location and name of a resource, the term to use is URI.”
See if you can register a name
• Think of a domain name• Choose a Registrar– (Licenced by ICANN to do this)– www.godaddy.com– www.simplynames.com
• Search to see if the name is available• Proceed to register it if you can
Objectives
• Know what is meant by:– Internet– Intranet– URL– Protocol
• Understand the parts of a URL– http://www.android.com/devices/
Examiner’s favourite question
• Internet– Latin inter = among/between– Worldwide network of networks, using the TCP/IP
protocol• Intranet– Latin intra = within– Private network, using the same technologies as
the Internet (TCP/IP)