1. THE DOMAIN NAME SYSTEM IS ITS SIZE ALSO ITS BIGGEST LIMITATION?

2. JUST A QUICK TEST… Try and remember the following IP addresses and the website they correspond to: 151.172.0.5 192.199.5.6 117.564.1.0 133.312.1.1

3. HAVE SOME TROUBLE REMEMBERING? Imagine if the go-compare guy from the adverts was singing, "It's where you go to, insure your motor. And you'll thank your stars that you went to 792.177.100.02!" It just wouldn't work. Go to our website!…err... What was it again?...

4. 3 MAIN COMPONENTS DOMAIN NAME SPACE NAME SERVER DOMAIN NAME RESOLUTION

5. NAME SERVER AND RESOLUTION

6. HOW MANY DOMAIN NAMES ARE THERE? 36 possibilities for the first character 36 possibilities for the last character 37 possibilities for the other 59 characters. =433,018,769,429,481,000,000,000,000,000,000,000,000,000,000,000, 000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 Multiplied together

7. TOP LEVEL DOMAINS TLDUsage.bitnetUsed for computers on the BITNET network.BITNET.comOriginally stood for "commercial" to indicate a site used for commercial purposes, but it has since become the most well-known top-level Internet domain, and is now used for any kind of site..intUsed by "International" sites, usually NATO sites..eduUsed for educational institutions like universities..govUsed for US Government sites..milUsed for US Military sites..netOriginally intended for sites related to the Internet itself, but now used for a wide variety of sites..orgOriginally intended for non-commercial "organizations", but now used for a wide variety of sites. Was managed by the Internet Society for awhile.

8. CONCLUSIONS Will it last?

9. REFERENCES BBC News. (2011). Turkish net hijack hits big name websites. Available: http://www.bbc.co.uk/news/technology-14786524. Last accessed 11th Jan 2012. Brain, M. Crawford, S. (2011). How Domain Name Servers Work. Available: http://www.howstuffworks.com/dns.htm. Last accessed 11th Jan 2012. Daily Domainer. (2009). Toys.com sells for $5.1 million in heated domain auction. Available: http://www.dailydomainer.com/2009346-toyscom-sells-for-51-million-in-heated- auction.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+DailyDomainerNews+%28Daily+Do mainer%29. Last accessed 11th Jan 2012. Domain Tools. (2012). Domain Counts & Internet Statistics. Available: http://www.domaintools.com/internet-statistics/. Last accessed 11th Jan 2012. ICANN. (unknown). Top-Level Domains (gTLDs). Available: http://www.icann.org/en/tlds/. Last accessed 11th Jan 2012. Incognito Software Inc. (Unknown). Understanding DNS. Available: http://www.incognito.com/resources/nc/wp_understanding_dns.pdf. Last accessed 11th Jan 2012. Living Internet. (2000). Internet Domain Names. Available: http://www.livinginternet.com/i/iw_dns_name.htm. Last accessed 11th Jan 2012.