As many of the Internet Service Providers give Dynamic IP with their Internet Connections, Dynamic DNS has became an essential problem for the system administrators at Small Medium Enterprises. A Dynamic DNS Service will allow you to always direct a domain name to a computer even if your IP address changes regularly.

Dynamic DNS is used when you want to host a small website on your personal computer, when you want to access office DVR online, host your erp systems on your office server…. etc and you have got a changing IP for your office internet connection.

There were many free players in the Dyanamic DNS market till last year who provide second level dns names with their domain . Now,TZODns and many others has stopped their free services.,, etc still provide secondary level DDNS services. is one of very good services so far, if you need to point your Primary Domain / Top Level domain to DDNS, or if you need to point any subdomain to DDNS. “DNS Exit provides 100% free static or dynamic DNS Services to your top level domains. Our DNS still keeps 100% uptime history since we started in 1998.” is their advertisement on the website.

Tutorial Case

For our case, we had to host on a webserver with static IP, and we needed to host ‘’ on DDNS which points to our bug tracking system hosted in our office system with a Dynamic IP.

  1. Created an account at with ‘myuser’ and ‘mypassword’.
  2. Opened’s DNS Editor and create four ‘NS’ entries [Name Server Entries]  for ‘‘ and pointed them to,,, respectively.
  3. Waited little time (upto 20 minutes) to propogate DNS entries. Checked if the DNS entries have reflected here.
  4. errata
  5. Good. DNS has propograted. The picture from name server  lookup .
  6. Login to, goto “Setup DNS”
  7. use “DNS Express Setup” and  entered the domain name ‘’ and checked the value ‘ IP Address is Dynamic’. They had already filled  “Your IP Address” field with my current Public IP and created DNS.
  8. Next it was verification by DNSExit, that domain is already pointed to Name Servers of
  9. Oh yea.. Its done 🙂
  10. Now download DDNS Client Created by Zsenda. and used my credentials to login. And made it always run, to update the domain names on IP change. {We couldn’t get DDNS the client work on windows. So we had Created another One. and Its Open Sourceand GPL}
  11. Forwarded Port ’80’ and ‘443’ to my Private IP “′ as on this tutorial
  12. Now All ready 🙂 Let Set Go.


I couldn’t access the Website from my Private Lan. But I could access the and https://errata.zsenda.lan from Outside Network, I mean via a 3G internet


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