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Introduction to e-Commerce. Domain Names. Dr. Michael D. Featherstone. Domain Names. Fundamental building block of any electronic business.

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Introduction to e commerce

Introduction to e-Commerce

Domain Names

Dr. Michael D. Featherstone


Domain names
Domain Names

Fundamental building block of any electronic business.

New .com and .net registrations totaled nearly 8.1 million during the first quarter 2010, representing an average of approximately 2.7 million new domain name registrations per month. This reflects a 10 percent increase in new registrations from fourth quarter 2009, and a 10 percent increase from a year ago.

Every second a new domain name is added in the dot com and dot net zones.


Domain name system
Domain Name System

  • The Domain Name System (abbreviated DNS) is an Internet directory service. DNS is how domain names are translated into IP addresses, and DNS also controls email delivery.

  • The DNS system consists of three components:

  • DNS data (called resource records),

  • Servers (called name servers), and

  • Internet protocols for fetching data from the servers

  • Paul Mockapetris and Jon Postel introduced DNS in 1984.


Domain name system1
Domain Name System

  • The Domain Name System (abbreviated DNS) is an Internet directory service. DNS is how domain names are translated into IP addresses, and DNS also controls email delivery.

  • The DNS system consists of three components:

  • DNS data (called resource records),

  • Servers (called name servers), and

  • Internet protocols for fetching data from the servers

  • Paul Mockapetris and Jon Postel introduced DNS in 1984.


Domain names1

Domain Name

IP Address

Domain Names

Make it easier for us humans – We Like Names, Computers Like Numbers

Not unlike telephone books

Brownkowski, John A …….. 256-555-2727

www.mensbowties.com ……… 75.144.42.2


Domain names2
Domain Names

IP Address Rules

FOUR OCTETS OF NUMBERS ie. 1.2.3.4

VALID RANGE FOR EACH OCTET is 0-255

EACH OCTET is separated by a dot. 0.123.4.255


Domain names3
Domain Names

WHAT THE HECK IS AN OCTET?


Domain names4
Domain Names

WHAT THE HECK IS AN OCTET?

A BYTE is a character of information (remember?) – only its represented in binary code – snooty scientific talk for information represented by ones and zeros.

A BYTE looks sort of like this “ 0001- 0111”

So suffice to say – if we filled up all eight of those positions with 1s and 0s starting at 0000-0000 then to 0000-0001, then to 0000-0010, and finally ending at 1111-1111 – we would be able to represent 256 numbers – the numbers 0 to 255

Which explains why they are called Octets (eight ‘1s and 0s) and why the range of numbers they represent is 0-256… I don’t know why they put dots between them.


Domain names5
Domain Names

Domain Name Resolution

Resolution: process that returns a Web page after a name is entered into a

browser or sends/receives an email after a name is entered in an email address

Domain names are resolved from right to left

www.jsu.edu

EDU


Domain names6

Domain Name Resolution

Domain names are resolved from right to left

www.jsu.edu

EDU

JSU

Domain Names


Domain names7

Domain Name Resolution

Domain names are resolved from right to left

www.jsu.edu

EDU

That’s why this is called the Top Level Domain or TLD.

Domain name bestows ownership on items to the left.

JSU

Domain Names


Domain names8
Domain Names

Domain Name Resolution


Domain names9
Domain Names

Resource Records

FUJITSU NS NS1.FUJITSU

WPD NS DNS1.UTELFLA

WRENCH NS ENESTWO.WRENCH

BAKA NS WAV2.CLARITYCONNECT.NET.

CLMCPA NS NS2.MYSUPERPAGESHOSTING

PJDICK NS CMTU.MT.NS.ELS-GMS.ATT.NET.

CARBONATION NS NS6.HOSTEXCELLENCE

SHIELDMARK NS NS1.SITEBYTES.NL.

Dot-com Domain Name File from a VeriSign TLD Server

NS1.LOUDOUNCOUNTYJAILINMATES A 70.84.117.101

NS2.VTRECORDER A 70.84.117.102

NS1.BROWARDNOTARYPUBLIC A 70.84.117.101

NS2.DEOFFENDERS A 70.84.117.102

NS2.LIVINGSTONCOUNTYRECORDS A 70.84.117.102

NS1.NEPROPERTYINFO A 70.84.117.101

NS2.BN47W3 A 69.90.126.71

NS2.FREEUSPUBLICRECORDS A 70.84.117.102


Domain names10
Domain Names

Dot-com Domain Name File from a VeriSign TLD Server

Resource Records

FUJITSU NS NS1.FUJITSU

WPD NS DNS1.UTELFLA

WRENCH NS ENESTWO.WRENCH

BAKA NS WAV2.CLARITYCONNECT.NET.

CLMCPA NS NS2.MYSUPERPAGESHOSTING

PJDICK NS CMTU.MT.NS.ELS-GMS.ATT.NET.

CARBONATION NS NS6.HOSTEXCELLENCE

SHIELDMARK NS NS1.SITEBYTES.NL.

NS1.LOUDOUNCOUNTYJAILINMATES A 70.84.117.101

NS2.VTRECORDER A 70.84.117.102

NS1.BROWARDNOTARYPUBLIC A 70.84.117.101

NS2.DEOFFENDERS A 70.84.117.102

NS2.LIVINGSTONCOUNTYRECORDS A 70.84.117.102

NS1.NEPROPERTYINFO A 70.84.117.101

NS2.BN47W3 A 69.90.126.71

NS2.FREEUSPUBLICRECORDS A 70.84.117.102


Domain names11
Domain Names

Dot-com Domain Name File from a VeriSign TLD Server

Resource Records

FUJITSU NS NS1.FUJITSU

WPD NS DNS1.UTELFLA

WRENCH NS ENESTWO.WRENCH

BAKA NS WAV2.CLARITYCONNECT.NET.

CLMCPA NS NS2.MYSUPERPAGESHOSTING

PJDICK NS CMTU.MT.NS.ELS-GMS.ATT.NET.

CARBONATION NS NS6.HOSTEXCELLENCE

SHIELDMARK NS NS1.SITEBYTES.NL.

NS1.LOUDOUNCOUNTYJAILINMATES A 70.84.117.101

NS2.VTRECORDER A 70.84.117.102

NS1.BROWARDNOTARYPUBLIC A 70.84.117.101

NS2.DEOFFENDERS A 70.84.117.102

NS2.LIVINGSTONCOUNTYRECORDS A 70.84.117.102

NS1.NEPROPERTYINFO A 70.84.117.101

NS2.BN47W3 A 69.90.126.71

NS2.FREEUSPUBLICRECORDS A 70.84.117.102


Domain names12
Domain Names

The .aero domain is reserved for members of the air-transport industry and is sponsored by Société Internationale de Télécommunications Aéronautiques (SITA).

The .biz domain is restricted to businesses and is operated by NeuLevel, Inc.

The .cat domain is reserved for the Catalan linguistic and cultural community and is sponsored by Fundació puntCat

The .com domain is operated by VeriSign Global Registry Services.

The .coop domain is reserved for cooperative associations and is sponsored by Dot Cooperation LLC.

The .info domain is operated by Afilias Limited.

The .jobs domain is reserved for human resource managers and is sponsored by Employ Media LLC.

The .mobi domain is reserved for consumers and providers of mobile products and services and is sponsored by mTLD Top Level Domain, Ltd.

The .museum domain is reserved for museums and is sponsored by the Museum Domain Management Association.

The .name domain is reserved for individuals and is operated by Global Name Registry.

The .net domain is operated by VeriSign Global Registry Services.

The .org domain is operated by Public Interest Registry. It is intended to serve the noncommercial community, but all are eligible to register within .org.

The .pro domain is restricted to credentialed professionals and related entities and is operated by RegistryPro.

The .travel domain is reserved for entities whose primary area of activity is in the travel industry and is sponsored by Tralliance Corporation.

Registrations in the domains listed above may be made through dozens of competitive registrars. For a list of the currently operating accredited registrars, go to the InterNIC site. Information about becoming an accredited registrar is available on the ICANN site.

The .gov domain is reserved exclusively for the United States Government. It is operated by the US General Services Administration.

The .edu domain is reserved for postsecondary institutions accredited by an agency on the U.S. Department of Education's list of Nationally Recognized Accrediting Agencies and is registered only through Educause.

The .mil domain is reserved exclusively for the United States Military. It is operated by the US DoD Network Information Center.

The .int domain is used only for registering organizations established by international treaties between governments. It is operated by the IANA .int Domain Registry.


Domain names13

pm – Saint Pierre and Miquelon

.pn – Pitcairn Island

.pr – Puerto Rico

.ps – Palestinian Territory, Occupied

.pt – Portugal

.pw – Palau

.py – Paraguay

.qa – Qatar

.re – Reunion Island

.ro – Romania

.rs – Serbia

.ru – Russian Federation

.rw – Rwanda

.sa – Saudi Arabia

.sb – Solomon Islands

.sc – Seychelles

.sd – Sudan

.se – Sweden

.sg – Singapore

.sh – Saint Helena

.si – Slovenia

..su – Soviet Union (being phased out)

.sv – El Salvador

.sy – Syrian Arab Republic

.sz – Swaziland

.tc – Turks and Caicos Islands

.td – Chad

.tg – Togo

.th – Thailand

.tj – Tajikistan

.tk – Tokelau

.tl – Timor-Leste

.tm – Turkmenistan

.tn – Tunisia

.to – Tonga

.tp – East Timor

.tr – Turkey

.tt – Trinidad and Tobago

.tv – Tuvalu

.tw – Taiwan

.tz – Tanzania

.ua – Ukraine

.ug – Uganda

.uk – United Kingdom

.um – United States Minor Outlying Islands

.us – United States

.uy – Uruguay

.uz – Uzbekistan

.va – Holy See (Vatican City State)

.vc – Saint Vincent and the

Domain Names

ls – Lesotho

.lt – Lithuania

.lu – Luxembourg

.lv – Latvia

.ly – Libyan Arab Jamahiriya

.ma – Morocco

.mc – Monaco

.md – Moldova, Republic of

.me – Montenegro

.mg – Madagascar

.mh – Marshall Islands

.mk – Macedonia, The Former Yugoslav Republic of

.ml – Mali

.mm – Myanmar

.mn – Mongolia

.mo – Macao

.mp – Northern Mariana Islands

.mq – Martinique

.mr – Mauritania

.ms – Montserrat

.mt – Malta

.mu – Mauritius

.mv – Maldives

.mw – Malawi

.mx – Mexico

.my – Malaysia

.mz – Mozambique

.na – Namibia

.nc – New Caledonia

.ne – Niger

.nf – Norfolk Island

.ng – Nigeria

.ni – Nicaragua

.nl – Netherlands

.no – Norway

.np – Nepal

.nr – Nauru

.nu – Niue

.nz – New Zealand

.om – Oman

.pa – Panama

.pe – Peru

.pf – French Polynesia

.pg – Papua New Guinea

.ph – Philippines

.pk – Pakistan

.pl – Poland

.

gs – South Georgia and the South Sandwich Islands

.gt – Guatemala

.gu – Guam

.gw – Guinea-Bissau

.gy – Guyana

.hk – Hong Kong

.hm – Heard and McDonald Islands

.hn – Honduras

.hr – Croatia/Hrvatska

.ht – Haiti

.hu – Hungary

.id – Indonesia

.ie – Ireland

.il – Israel

.im – Isle of Man

.in – India

.io – British Indian Ocean Territory

.iq – Iraq

.ir – Iran, Islamic Republic of

.is – Iceland

.it – Italy

.je – Jersey

.jm – Jamaica

.jo – Jordan

.jp – Japan

.ke – Kenya

.kg – Kyrgyzstan

.kh – Cambodia

.ki – Kiribati

.km – Comoros

.kn – Saint Kitts and Nevis

.kp – Korea, Democratic People's Republic

.kr – Korea, Republic of

.kw – Kuwait

.ky – Cayman Islands

.kz – Kazakhstan

.la – Lao People's Democratic Republic

.lb – Lebanon

.lc – Saint Lucia

.li – Liechtenstein

.lk – Sri Lanka

.lr – Liberia

.ac – Ascension Island

.ad – Andorra

.ae – United Arab Emirates

.af – Afghanistan

.ag – Antigua and Barbuda

.ai – Anguilla

.al – Albania

.am – Armenia

.an – Netherlands Antilles

.ao – Angola

.aq – Antarctica

.ar – Argentina

.as – American Samoa

.at – Austria

.au – Australia

.aw – Aruba

.ax – Aland Islands

.az – Azerbaijan

.ba – Bosnia and Herzegovina

.bb – Barbados

.bd – Bangladesh

.be – Belgium

.bf – Burkina Faso

.bg – Bulgaria

.bh – Bahrain

.bi – Burundi

.bj – Benin

.bm – Bermuda

.bn – Brunei Darussalam

.bo – Bolivia

.br – Brazil

.bs – Bahamas

.bt – Bhutan

.bv – Bouvet Island

.bw – Botswana

.by – Belarus

.bz – Belize

.ca – Canada

.cc – Cocos (Keeling) Islands

.cd – Congo, The Democratic Republic of the

.cf – Central African Republic

.cg – Congo, Republic of

.ch – Switzerland

.cm – Cameroon

.cn – China

.co – Colombia

.cr – Costa Rica

.cu – Cuba

.cv – Cape Verde

.cx – Christmas Island

.cy – Cyprus

.cz – Czech Republic

.de – Germany

.dj – Djibouti

.dk – Denmark

.dm – Dominica

.do – Dominican Republic

.dz – Algeria

.ec – Ecuador

.ee – Estonia

.eg – Egypt

.eh – Western Sahara

.er – Eritrea

.es – Spain

.et – Ethiopia

.eu – European Union

.fi – Finland

.fj – Fiji

.fk – Falkland Islands (Malvinas)

.fm – Micronesia, Federated States of

.fo – Faroe Islands

.fr – France

.ga – Gabon

.gb – United Kingdom

.gd – Grenada

.ge – Georgia

.gf – French Guiana

.gg – Guernsey

.gh – Ghana

.gi – Gibraltar

.gl – Greenland

.gm – Gambia

.gn – Guinea

.gp – Guadeloupe

.gq – Equatorial Guinea

.gr – Greece

.


Domain names14
Domain Names

Domain Name Resolution

Domain names are resolved from right to left

www.jsu.edu

EDU

That’s why this is called the Top Level Domain or TLD.

Domain name bestows ownership on items to the left.

JSU


Domain names15
Domain Names

www.scu.edu


Domain names16
Domain Names

www.scu.edu.au


Domain names17
Domain Names

Video on the Internet continues to grow and users are seeking new methods of finding multimedia content on the Web. The .tv domain name provides a global opportunity for users to find a media-rich Web site of their choice. By using a .tv Web address, companies and individuals can offer online viewers a simple and easily recognizable gateway to finding rich media content on the Internet.

Source: VeriSign


Domain names18
Domain Names

Source: VeriSign Domain Name Industry Brief, December 2008



This concludes today s presentation

This Concludes Today’s Presentation

Thank you for your attention


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