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Part 3: Domain Name
Reem AbuZayedh
CIS 1203 Web Technologies
Keywords
1. URL
2. Domain Name
3. IP address
4. Domain Name System
5. Organization code
6. Country code
Objectives
1. What is URL
2. Domain Name and IP Address
3. What is Domain Name System DNS?
4. Browser and DNS
5. Parts of ...
1- URL
 URL: Uniform Resource Locator
 URL: stands for the address of a website.
 Example:
The URL of Albayan newspaper...
2- Domain Name and IP Address
 Each Web server has a unique IP address
and a domain name.
URL: http://www.google.com
Doma...
3- Domain Name System DNS (1/2)
 It is hard for us to remember numbers (IP
Address 209.85.148.104) but it is easier for u...
3- Domain Name System DNS (2/2)
 Domain Name System DNS:
DNS Server links google.com to the IP
Address 209.85.148.104
4- Browser and DNS (1/2)
1. When you type a URL, on the browser, for example:
http://www.emaratalyoum.com/sports
2. The br...
4- Browser and DNS (2/2)
208.43.117.197
Emaratalyoum Server
You
DNS Server
1
2
3
4
1- The browser asks DNS
server about IP...
5- Parts of Domain Name
 As you know form slide 7, the below URL contains 3
parts: https://www.hct.ac.ae/students
 3 par...
6- Organization code
OrganizationName
Academic.ac
educational.edu
company.co
commercial.com
governmental.gov
information.i...
7- Country Code
CountryName
United Arab Emirates.ae
Australia.au
South Africa????????
Canada.ca
Germany.de
Spain.es
Irelan...
Additional
The subnet mask signifies which part of the IP address is network and which part is
host.
Subnet Mask
Default Gateway:
The...
Internet Domain Names
Internet Domain Names
Internet Domain Names
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Internet Domain Names

A description of Internet Domains - what they are and how they work.

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Internet Domain Names

  1. 1. Part 3: Domain Name Reem AbuZayedh CIS 1203 Web Technologies
  2. 2. Keywords 1. URL 2. Domain Name 3. IP address 4. Domain Name System 5. Organization code 6. Country code
  3. 3. Objectives 1. What is URL 2. Domain Name and IP Address 3. What is Domain Name System DNS? 4. Browser and DNS 5. Parts of Domain Name 6. Organization code 7. Country code
  4. 4. 1- URL  URL: Uniform Resource Locator  URL: stands for the address of a website.  Example: The URL of Albayan newspaper is: http://www.albayan.ae/alainfootball.pdf
  5. 5. 2- Domain Name and IP Address  Each Web server has a unique IP address and a domain name. URL: http://www.google.com Domain Name of the web server: google.com IP Address of the web server:
  6. 6. 3- Domain Name System DNS (1/2)  It is hard for us to remember numbers (IP Address 209.85.148.104) but it is easier for us to remember names (Domain name google.com)!  DNS helps in this! You don’t have to memorize all IP Addresses of your favorite websites!
  7. 7. 3- Domain Name System DNS (2/2)  Domain Name System DNS: DNS Server links google.com to the IP Address 209.85.148.104
  8. 8. 4- Browser and DNS (1/2) 1. When you type a URL, on the browser, for example: http://www.emaratalyoum.com/sports 2. The browser breaks the URL (address) into 3 parts: 1. Protocol: http 2. Domain name: emaratalyoum.com 3. The resource/webpage name (optional) : sports 3. See the next slide to know how the browser uses the domain name emaratalyoum.com
  9. 9. 4- Browser and DNS (2/2) 208.43.117.197 Emaratalyoum Server You DNS Server 1 2 3 4 1- The browser asks DNS server about IP address of emaratalyoum.com 2- DNS server returns the IP address 208.43.117.197 3- The browser requests to view the content of 208.43.117.197 4- Server accepts and browser views the website. Copy of Sports webpage
  10. 10. 5- Parts of Domain Name  As you know form slide 7, the below URL contains 3 parts: https://www.hct.ac.ae/students  3 parts of the Domain name : 1. Organization name: hct 2. Organization code: ac (academic) 3. Country code: ae (Arab Emirates)  Some domain names contain only organization code, for example: microsft.com why? Protocol Domain Name Resourc e
  11. 11. 6- Organization code OrganizationName Academic.ac educational.edu company.co commercial.com governmental.gov information.info US military.mil business.biz
  12. 12. 7- Country Code CountryName United Arab Emirates.ae Australia.au South Africa???????? Canada.ca Germany.de Spain.es Ireland.ie Italy.it Kuwait.kw Oman.om Qatar.qa Saudi Arabia.sa United Kingdom.uk United States of America.us
  13. 13. Additional
  14. 14. The subnet mask signifies which part of the IP address is network and which part is host. Subnet Mask Default Gateway: The default gateway address is the address of the router interface connected to the same local network as the source host The IP address is a logical network address that identifies a particular Computer IP Address

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