Dynamic DNS
jainul.musani@gmail.cojainul.musani@gmail.co
DDNS (Dynamic Domain Name System)
• DDNS (Dynamic DNS) is a service
that maps Internet domain names to
IP addresses.
• Unl...
• That makes DDNS a good fit for
home networks, which often receive
dynamic public IP addresses from
their Internet provid...
• A host's IP address (or what appears
to be its IP address) can change
when you use a home broadband
service such as cabl...
•To use DDNS, one simply signs up
with a DDNS provider and installs
network software on their host
to monitor its IP addre...
• In cases if a website is hosted on a
server with dynamic IP, each time
you connect to the internet, a
temporary IP addre...
• In such cases the Dynamic DNS will
take care of this issue by changing
the IP address of your website
correspondingly.
[...
[8]
DDNS (Dynamic Domain Name System)
• All DDNS service providers require
that you use a DDNS client on your
web server that will periodically
update the IP ad...
• Like most RedHat and Fedora Linux
software products, DDclient is
available in the RPM format.
• You can usually download...
• The RPM name usually starts with
ddclient followed by a version
number, as in ddclient-3.6.3-
1.noarch.rpm
• Its configu...
• Username: Your DDNS account's
login name
• Password: Your DDNS account's
password
• Use: The method used to determine
th...
• Server: The name of the DDNS
provider's main DNS server
• Protocol: The methodology the
DDNS client should use to
commun...
1) You can configure DDclient to start
at boot time using the chkconfig
command:
[root@bigboy tmp]# chkconfig ddclient on
...
2) You can start, stop, and restart
DDclient after boot time using the
DDclient initialization script as in:
[root@bigboy ...
3) Testing Your Dynamic DNS
[root@bigboy tmp]# host www.my-
site.com
Server: 127.0.0.1
Address: 127.0.0.1#53
** server can...
3) Testing Your Dynamic DNS
[root@bigboy tmp]# host www.my-
site.com
Server: 127.0.0.1
Address: 127.0.0.1#53
** server can...
Dynamic DNS
Thank You….!!!
[18]
Upcoming SlideShare
Loading in …5
×

Linux15 dynamic dns-2

520 views

Published on

Dynamic DNS - 2

Published in: Education
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
520
On SlideShare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
28
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Linux15 dynamic dns-2

  1. 1. Dynamic DNS jainul.musani@gmail.cojainul.musani@gmail.co
  2. 2. DDNS (Dynamic Domain Name System) • DDNS (Dynamic DNS) is a service that maps Internet domain names to IP addresses. • Unlike DNS that only works with static IP addresses, DDNS is designed to also support dynamic IP addresses, such as those assigned by a DHCP server. [2]
  3. 3. • That makes DDNS a good fit for home networks, which often receive dynamic public IP addresses from their Internet provider that occasionally change. • Dynamic DNS (DDNS) is the ability for a host to update its own DNS A record. [3] DDNS (Dynamic Domain Name System)
  4. 4. • A host's IP address (or what appears to be its IP address) can change when you use a home broadband service such as cable or DSL. • If you have a broadband connection, DDNS allows you to have a full-time Internet server even though you don't have a static IP address. [4] DDNS (Dynamic Domain Name System)
  5. 5. •To use DDNS, one simply signs up with a DDNS provider and installs network software on their host to monitor its IP address. –For example, dyndns.com provides a free dynamic DDNS service via software that can run on Windows, Mac or Linux computers. [5] DDNS (Dynamic Domain Name System)
  6. 6. • In cases if a website is hosted on a server with dynamic IP, each time you connect to the internet, a temporary IP address is assigned to the server by the Internet Service Provider. So when the IP address of the server changes you will not be able to access the website using Domain name. [6] DDNS (Dynamic Domain Name System)
  7. 7. • In such cases the Dynamic DNS will take care of this issue by changing the IP address of your website correspondingly. [7] DDNS (Dynamic Domain Name System)
  8. 8. [8] DDNS (Dynamic Domain Name System)
  9. 9. • All DDNS service providers require that you use a DDNS client on your web server that will periodically update the IP address information in your provider's DDNS record. • One of the most commonly used clients is DDclient. [9] Install a DDNS Client On Your Server
  10. 10. • Like most RedHat and Fedora Linux software products, DDclient is available in the RPM format. • You can usually download the software from your DDNS provider, or you can find it at rpmfind.net. [10] Install a DDNS Client On Your Server
  11. 11. • The RPM name usually starts with ddclient followed by a version number, as in ddclient-3.6.3- 1.noarch.rpm • Its configuration file is /etc/ddclient.conf file [11] Install a DDNS Client On Your Server
  12. 12. • Username: Your DDNS account's login name • Password: Your DDNS account's password • Use: The method used to determine the IP address to advertise to the DDNS server [12] The most important general parameters to configure are:
  13. 13. • Server: The name of the DDNS provider's main DNS server • Protocol: The methodology the DDNS client should use to communicate with the DDNS server • Your domain: The domain to which your web server will belong [13] Some important DDNS provider parameters are
  14. 14. 1) You can configure DDclient to start at boot time using the chkconfig command: [root@bigboy tmp]# chkconfig ddclient on [14] How to Get DDclient Started
  15. 15. 2) You can start, stop, and restart DDclient after boot time using the DDclient initialization script as in: [root@bigboy tmp]# service ddclient start [root@bigboy tmp]# service ddclient stop [root@bigboy tmp]# service ddclient restart [15] How to Get DDclient Started
  16. 16. 3) Testing Your Dynamic DNS [root@bigboy tmp]# host www.my- site.com Server: 127.0.0.1 Address: 127.0.0.1#53 ** server can't find www.my-site.com: NXDOMAIN [16] How to Get DDclient Started
  17. 17. 3) Testing Your Dynamic DNS [root@bigboy tmp]# host www.my- site.com Server: 127.0.0.1 Address: 127.0.0.1#53 ** server can't find www.my-site.com: NXDOMAIN [root@bigboy tmp]# host www.my-site.com ns1.minidns.net www.my-site.com has address 97.158.253.26 [17] How to Get DDclient Started
  18. 18. Dynamic DNS Thank You….!!! [18]

×