This document discusses dynamic DNS, which allows domain names to point to computers that have dynamic IP addresses that change frequently. Dynamic DNS uses software that automatically updates DNS records with the computer's new IP address whenever it changes, so that remote access is still possible. It is useful for servers or remote access to office computers. To use dynamic DNS, one must sign up for the service and install client software to update records when the IP address changes.

1. Dynamic DNS
http://support.easydns.com/tutorials/DynamicDNS
jainul.musani@gmail.com
[1]

2. Introduction - DDNS
Dynamic DNS is one of the fastest
growing aspects of DNS service and
although it is a little more involved to
set up initially, it doesn't have to be
overwhelming.
Dynamic DNS
[2]

3. Introduction - DDNS
This service is useful to anyone who
wants to operate a server (web server,
mail server, ftp server, irc server etc)
connnected to the internet with
a dynamic IP or to someone who
wants to connect to an office computer
or server from a remote location with
software such as pcAnywhere.
Dynamic DNS
[3]

4. Dynamic DNS
[4]

5. Introduction - DDNS
To have dynamic DNS service work
for you there are two things you need
to do:
1)set your domain name up to use
dynamic DNS service on easyDNS.
2)download and setup a dynamic DNS
client on your computer.
Dynamic DNS
[5]

6. Introduction - DDNS
What Service Level do I need?
In order to use dynamic DNS for a
domain name on easyDNS you will
need to be using one of the following
service levels:
Dynamic DNS
[6]

7. Introduction - DDNS
Dynamic DNS
[7]
Please Visit the following link for
membership and upgradation @ easydns
portal:
http://support.easydns.com/tutorials/Dyna
micDNS/membersection.php

8. Introduction - DDNS
Dynamic DNS
[8]

9. Background Information on DNS, Dynamic
DNS and domain names
Dynamic DNS
[9]
Initially, the most common way to
connect computers to the internet
was with a static IP. A static IP is an
address which does not change.
Since the IP address never changed, a
static IP made it very easy to point a
domain name to a computer on the
internet.

10. DNS & Dynamic DNS
Dynamic DNS
[10]

11. DNS, Dynamic DNS and domain names
Dynamic DNS
[11]
There are a limited number of static
IP addresses in the world and as they
became scarce they became harder to
obtain and the cost of obtaining a
static IP moved out of the range of
most internet users.

12. DNS, Dynamic DNS and domain names
Dynamic DNS
[12]
As a result, internet service
providers (ISP's) began to use a
system of "pooled" IP addresses which
could be handed out at random to
computers as they connected to the
internet.

13. DNS, Dynamic DNS and domain names
Dynamic DNS
[13]
This system became known
as dynamic IP addressing.
Connect to your ISP and your
computer is assigned a random
address from the pool.

14. DNS, Dynamic DNS and domain names
Dynamic DNS
[14]
Disconnect from your ISP and the IP
address goes back into the pool.
Connect your computer again later
and it is very unlikely that you will get
the same IP address.

15. DNS, Dynamic DNS and domain names
Dynamic DNS
[15]
Some service providers may even
change your IP at seemingly random
times, and not just when you connect
and disconnect.

16. Dynamic DNS
[16]

17. Dynamic DNS
[17]

18. DNS, Dynamic DNS and domain names
Dynamic DNS
[18]
This makes it a little harder to point a
domain name to a computer using a
dynamic connection because the
address of the computer keeps
changing. However, a solution to this
problem was developed and is called
Dynamic DNS service.

19. Dynamic DNS service
Dynamic DNS
[19]
Dynamic DNS service uses software
installed on your computer to
automatically update your DNS
settings on easyDNS with the new IP
address - which means your domain
name stays pointing at your
computer even when the address
changes.

20. How is Dynamic DNS Different?
Dynamic DNS
[20]
Dynamic DNS works in almost the
same manner as DNS resolution to
a static IP. Resolution is just a fancy
term which means translating a
domain name into an IP address so that
one computer can find another one on
the internet.

21. How is Dynamic DNS Different?
Dynamic DNS
[21]
STILL
COMMING....

22. Bibliography
1) http://support.easydns.com/tutorials/DynamicDNS/
2) http://en.wikipedia.org/wiki/Dynamic_DNS
3) http://www.noip.com/free
4) https://www.dnsdynamic.org/
5) http://dyn.com/dns/
6) http://dnslookup.me/dynamic-dns/
[22]