The Growth, Future and Restraints facing the Domain Naming System (DNS) B101 the Technology Context 1

A Solution? Or just causing problems? Current needs : ? Example IP address Example FQDN DNS Conversion 2 Current needs suited?

So where is the DNS heading and what's holding it back? Security problems range from : Phishing Denial-of-service Cache poisoning attacks 3 Internet grows larger + Amount of users grows = Growing number of security risks.

The structure of the present DNS 4

Primary and Secondary servers 5 Primary Stores a zone file Responsibility for creating, maintaining and updating this file Secondary Stores information about the zone onto a hard drive

Under the bonnet 6

It doesn’t always go to plan 7 DoS Attack DoS = denial-of-service When a server receives too many queries the server can crash

Breaks, ECU and Clutch Breaks, ECU and Clutch are the 3 most important parts of a car. ~~~~~~~~~~~Similarly in the DNS~~~~~~~~~~~ Root sever, inverse domain and caching Root sever, inverse domain and caching are the 3 most important parts of the DNS. 8

It doesn’t always go to plan 9 Cache poisoning Is where a fake record of address is submitted to the DNS and accepted.

Who has the Control? The main organisation regulating the use of the DNS is the Internet Corporation for Assigned Names and Numbers (ICANN). Data protection act 1998 which is controlled by the government and does have a significant influence on the internet. 10

Are we Safe and Secure? The main limitation of the DNS is the security, but is anything being done to improve it? Domain Naming System Security (DNSSEC) 11

The verdict 12 As it stands the DNS does not satisfy current needs and has been held back for some time. But the new security protocol along with the new domains will allow the internet to grow into a smarter and safer internet. Future

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