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Understanding Domain Names - ITU · 2019-09-27 · ccTLD vs. gTLD Policies at ICANN Address...
Transcript of Understanding Domain Names - ITU · 2019-09-27 · ccTLD vs. gTLD Policies at ICANN Address...
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Understanding Domain Names
Fahd BataynehGlobal Stakeholder Engagement Sr. Manager, Middle East
ICANN
Strengthening Capacities In Internet Governance in the Arab Region
Manama, Bahrain | 1-3 October 2019
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Objectives
• Why do we use a domain name
• Understand what a domain name is
• ccTLDs vs. gTLDs vs. IDNs
• Domain Name Policy Development
• Root-Servers and Root Server Instances
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Why Domain Names?
• Which is easier to memorize?
www.icann.org
or
192.0.32.7
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Names Terminology
http://www.icann.org/
Label (63 characters maximum)
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Names Terminology
http://www.icann.org/
Domain Name (253 characters maximum)
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Names Terminology
http://www.icann.org/
Uniform Resource Locater (URL)
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Names Terminology
http://www.icann.org/
Label (63 characters maximum)
Domain Name (253 characters maximum)
Uniform Resource Locater (URL)
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Top Level Domains (TLDs)
• Exists at the highest level of the DNS hierarchy
• It is the entry installed into the root-zone
• Consists of various groups:
• ccTLDs (.ma, .tn, .jo, .eg, .lb, .uk)
• gTLDs
• Legacy (.com, .net, … etc)
• New (.xyz, .apps, موقع. … etc)
• IDN TLDs ( البحرين. , بازار. , ابوظبي. )
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Generic TLDs (GTLDs)
1985 2000 2004 2012 2013 …
We started
with 7 gTLDs
(.com, .net,
.org, .gov,
.edu, .mil, and
.int)
7 more
gTLDs were
added (.aero,
.biz, .coop,
.info,
.museum,
.name, and
.pro)
6 more
gTLDs were
added (.asia,
.cat, .jobs,
.mobi, .tel,
and .travel)
.post was
added
A future round
is currently
being
discussed
The biggest
expansion to
the TLD
space with
100s of
names
applied for
and
delegated
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New gTLDs
ChoiceInnovationCompetition
The goal of the New gTLD Program is to foster competition,
innovation and choice in the domain name industry.
⦿ This is an Internet community-driven initiative that is enabling the
largest expansion of the domain name system, ever.
⦿ The New gTLD Program is managed by ICANN, which means it
has taken shape through the multistakeholder model.
⦿ Over 1,200 new generic top-level domains have been introduced
into the Internet over the past few years.
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The gTLD Landscape
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Internationalized Domain Names (IDNs)
IDNs are domain names with non-Latin characters or Latin
characters beyond letters (a to z) digits (0 to 9) and hyphens (-), as
allowed by relevant protocols.
Until late 2009, top-level domains were restricted to only the Latin
letters a to z without accents or symbols. After 2009, IDN TLDs were
introduced in other scripts, including Arabic, Chinese, and Cyrillic
scripts.
IDN TLDs can be either ccTLDs or gTLDs.
IDNs use a particular encoding and
format to allow a wider range of
scripts to represent domain names.
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Humans vs. Computers
This is what we see and understand (Unicode)
http:// المغرب.المواصالت-لتقنين-الوطنية-الوكالة /
This is what machines deal with (ASCII)
http://xn------nzeabcaancne6mxa3pircddecvqfa4bhn4cg.xn--
mgbc0a9azcg/
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Quick Quiz
What is the name tra.gov.bh?
o Label
o Domain Name
o URL
o IP Address
o All of the Above
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Quick Quiz
What are the following?
1. .EG
2. البحرين.
3. .ORG
4. .PARIS
5. شبكة.
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ccTLD vs. gTLD Policies at ICANN
Address Supporting Organization
(ASO)
Country Code Names Supporting
Organization (ccNSO)
Generic Names Supporting
Organization (GNSO)
Supporting
Organizations (SOs)
ccNSOThe ccNSO Council and members work onglobal policies relating to country code top-leveldomain names (ccTLD) policies (e.g., .br, .uk).
ASOThe ASO Address Council is composed of 15
volunteers – 3 from each of the Regional Internet
Registries (RIRs) – who work on global Internet
Protocol (IP) Address Policy.
GNSOThe GNSO Council is composed of 21members – divided into 2 houses (contractedand non-contracted parties) – who work ongeneric top-level domain names (gTLD)policies (e.g., .com, new gTLDs).
Three SOs in the ICANN
community are responsible
for developing policy
recommendations in the
areas they represent.
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Root Servers
• Publish the root zone file to other DNS servers and clients on the
Internet
• The root zone file describes where the authoritative servers for the
DNS TLDs are located
• The root name server operators publish the root zone file as
received from the IANA
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Root Server Operators
1. A - VeriSign Global Registry Services
2. B - University of Southern California - Information Sciences Institute
3. C - Cogent Communications
4. D - University of Maryland
5. E - NASA Ames Research Center
6. F - Internet Systems Consortium, Inc.
7. G - U.S. DOD Network Information Center
8. H - U.S. Army Research Lab
9. I - Autonomica/NORDUnet
10. J - VeriSign Global Registry Services
11. K - RIPE NCC
12. L – ICANN
13. M - WIDE Project
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Root Servers Around the World (1017)
Source at http://root-servers.org/
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Quick Quiz
GNSO Policies are enforced on both ccTLDs and gTLDs?
o Yes
o No
o Maybe
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Quick Quiz
We have only 13 root server instances?
o Yes
o No
o Maybe
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Summary
• Domain Names make our life easier in remembering where to
navigate online
• There is a difference between a Label, a Domain Name, and a URL
• While Country Code TLDs (ccTLDs) are limited to countries,
Generic TLDs (gTLDs) could be anything else
• GNSO develops gTLD policies, and are enforced on gTLD registry
operators
• ccNSO members share best practices, but majority of the policies
developed within the ccNSO are non-binding
• Root-servers are the yellow pages of the DNS. There are more
than 1,000 instances deployed around the world
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