Transcript Document 7460604

Introduction to e-Commerce
Domain Names
Dr. Michael D. Featherstone
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Domain Names
Fundamental building block of any electronic
business.
New .com and .net registrations totaled nearly 8.1,
representing an average of approximately 2.7
million new domain name registrations per
month.
Every second a new domain name is added in the
dot com and dot net zones.
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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:
1.DNS data (called resource records),
2.Servers (called name servers), and
3.Internet protocols for fetching data from the servers
Paul Mockapetris and Jon Postel introduced DNS in 1984.
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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:
1.DNS data (called resource records),
2.Servers (called name servers), and
3.Internet protocols for fetching data from the servers
Paul Mockapetris and Jon Postel introduced DNS in 1984.
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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 Name
IP Address
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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
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Domain Names
WHAT THE HECK IS AN OCTET?
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Domain Names
WHAT THE HECK IS AN OCTET?
A BYTE is a character of information – 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 0-255… I don’t know why they put
dots between them.
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Domain Names
So a BYTE is a character of information (remember?).
This sentence consists of 54 bytes (including spaces).
A K- BYTE (Kilobyte) is 1000 characters of information
A Megabyte is a million characters of information (1000 K-bytes)
A Gigabyte is 1000 Megabytes
A Terabyte is 1000 Gigabytes
A Petabyte is 1000 Terabytes
Here is the numerical representation of a Petabyte
1,000,000,000,000,000
An Exabyte is 1000 Petabytes
We’ll chat a bit more about this later in the Analytics Section
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Domain Names
We are transitioning to IP v6 addresses, even while we speak… But we will still be using
IP v4 for the forseeable future.
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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
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Domain Names
Domain Name Resolution
Domain names are resolved from right to left
www.jsu.edu
EDU
JSU
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Domain Names
Domain Name Resolution
Domain names are resolved from right to left
www.jsu.edu
EDU
JSU
That’s why this is called the Top
Level Domain or TLD.
Domain name bestows
ownership on items to the left.
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Domain Names
Domain Name Resolution
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Domain Names
Dot-com Domain Name File from a VeriSign TLD Server
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
Resource Records
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Domain Names
Dot-com Domain Name File from a VeriSign TLD Server
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
Resource Records
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Domain Names
Dot-com Domain Name File from a VeriSign TLD Server
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
Resource Records
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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.
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Domain Names
gs – South Georgia and the South
Sandwich Islands
.gt – Guatemala
.gu – Guam
.ac – Ascension Island
.cm – Cameroon
.gw – Guinea-Bissau
.ad – Andorra
.cn – China
.gy – Guyana
.ae – United Arab Emirates
.co – Colombia
.hk – Hong Kong
.af – Afghanistan
.cr – Costa Rica
.hm – Heard and McDonald Islands
.ag – Antigua and Barbuda
.cu – Cuba
.hn – Honduras
.ai – Anguilla
.cv – Cape Verde
.hr – Croatia/Hrvatska
.al – Albania
.cx – Christmas Island
.ht – Haiti
.am – Armenia
.cy – Cyprus
.hu – Hungary
.an – Netherlands Antilles
.cz – Czech Republic
.id – Indonesia
.ao – Angola
.de – Germany
.ie – Ireland
.aq – Antarctica
.dj – Djibouti
.il – Israel
.ar – Argentina
.dk – Denmark
.im – Isle of Man
.as – American Samoa
.dm – Dominica
.in – India
.at – Austria
.do – Dominican Republic
.io – British Indian Ocean Territory
.au – Australia
.dz – Algeria
.iq – Iraq
.aw – Aruba
.ec – Ecuador
.ir – Iran, Islamic Republic of
.ax – Aland Islands
.ee – Estonia
.is – Iceland
.az – Azerbaijan
.eg – Egypt
.it – Italy
.ba – Bosnia and Herzegovina
.eh – Western Sahara
.je – Jersey
.bb – Barbados
.er – Eritrea
.jm – Jamaica
.bd – Bangladesh
.es – Spain
.jo – Jordan
.be – Belgium
.et – Ethiopia
.jp – Japan
.bf – Burkina Faso
.eu – European Union
.ke – Kenya
.bg – Bulgaria
.fi – Finland
.kg – Kyrgyzstan
.bh – Bahrain
.fj – Fiji
.bi – Burundi
.fk – Falkland Islands (Malvinas) .kh – Cambodia
.bj – Benin
.fm – Micronesia, Federated States.kiof– Kiribati
.km – Comoros
.bm – Bermuda
.fo – Faroe Islands
.kn – Saint Kitts and Nevis
.bn – Brunei Darussalam
.fr – France
.kp – Korea, Democratic People's
.bo – Bolivia
.ga – Gabon
Republic
.br – Brazil
.gb – United Kingdom
.kr – Korea, Republic of
.bs – Bahamas
.gd – Grenada
.kw – Kuwait
.bt – Bhutan
.ge – Georgia
.ky – Cayman Islands
.bv – Bouvet Island
.gf – French Guiana
.kz – Kazakhstan
.bw – Botswana
.gg – Guernsey
.la – Lao People's Democratic
.by – Belarus
.gh – Ghana
Republic
.bz – Belize
.gi – Gibraltar
.lb – Lebanon
.ca – Canada
.gl – Greenland
.lc – Saint Lucia
.cc – Cocos (Keeling) Islands
.gm – Gambia
.li – Liechtenstein
.cd – Congo, The Democratic Republic of.gn – Guinea
.lk – Sri Lanka
the
.gp – Guadeloupe
.lr – Liberia
.cf – Central African Republic
.gq – Equatorial Guinea
.cg – Congo, Republic of
.gr – Greece
.ch – Switzerland
.
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
.
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
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Domain Names
Domain Name Resolution
Domain names are resolved from right to left
www.jsu.edu
EDU
JSU
That’s why this is called the Top
Level Domain or TLD.
Domain name bestows
ownership on items to the left.
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Domain Names
www.scu.edu
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Domain Names
www.scu.edu.au
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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
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Domain Names
Source: VeriSign Domain Name Industry Brief, December 2008
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Domain Names
Country Code Domains:
LY –
CO –
TV –
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Domain Names
http://newgtlds.icann.org/en/announcements-and-media/video/overview-en
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This Concludes Today’s Presentation
Thank you for your attention
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