Linux14 Dynamic DNS


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Dynamic DNS

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Linux14 Dynamic DNS

  1. 1. Dynamic DNS [1]
  2. 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. 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. 4. Dynamic DNS [4]
  5. 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. 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. 7. Introduction - DDNS Dynamic DNS [7] Please Visit the following link for membership and upgradation @ easydns portal: micDNS/membersection.php
  8. 8. Introduction - DDNS Dynamic DNS [8]
  9. 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. 10. DNS & Dynamic DNS Dynamic DNS [10]
  11. 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. 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. 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. 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. 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. 16. Dynamic DNS [16]
  17. 17. Dynamic DNS [17]
  18. 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. 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. 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. 21. How is Dynamic DNS Different? Dynamic DNS [21] STILL COMMING....
  22. 22. Bibliography 1) 2) 3) 4) 5) 6) [22]