1. Domain Name System
Saksham
3088

2. It is a TCP/IP facility that lets us use names rather than numbers.

4.  Divide & Conquer
 Uses a hierarchical naming system
 Organizes Into Domains

5. Root
edu com in org
MySite
PC 1 Server Printer PC 2
MySite.com Domain
server.mysite.com

7. DNS are case sensitive
Name of each DNS node must be 63 char long
DNS hierarchy is similar to windows folder system
DNS tree can be upto 128 levels deep

9. myhost Localhost Name
Example.com Parent Name
Fully Qualified Domain Name -
myhost.example.com.

10. myhost Localhost Name
DNS Server/Resolver will automatically provide the parent
domain
Used when the name to be resolved belong to the same site as the client.

12. Root
com server in server
org server
MySite
PC 1 Server Printer PC 2
com Zone
server.mysite.com
Primary server
Secondary server
Root Zone

13. Thank You !
Saksham
3088
# DNS