What Is Dynamic DNS And How Dynamic DNS Service Works?

What Is Dynamic DNS And How Dynamic DNS Service Works?

DDNS And DynDNS stand for Dynamic DNS, or more especially for dynamic Domain Name System. Dynamic DNS is a service that connects internet domain names to IP addresses. It's a DDNS service that allows you to access your private or home computer from anywhere in the world.

DDNS serves a similar purpose to the internet's Domain Name System (DNS) in that DDNS lets anyone hosting a web or FTP server advertise a public name to prospective users.
What Is Dynamic DNS And How Dynamic DNS Service Works?
What Is Dynamic DNS And How Dynamic DNS Service Works?
However, unlike DNS which only works with static IP addresses, Dynamic DNS is designed to also support dynamic (changing) IP addresses, such as those assigned by a DHCP server. That makes Dynamic DNS a good fit for home networks, which normally receive dynamic public IP addresses from their internet service provider.

Note: DDNS is not the same as DDoS (Distributed Denial of Service) even though they share most of the same acronym letters.

How Dynamic DNS Service Works

To use DDNS, just sign up with a dynamic DNS provider and install their software on the host computer. The host computer is whichever computer is used as the server, be it a file server, web server, etc.

For instance, if you have FTP software on your computer to turn that device into an FTP server, you'd install the DDNS application on that computer. That computer is the one that visitors will reach when they request your server, so it's the one that needs to always be updating the DDNS provider with its current IP address.

What the software does is monitors the dynamic IP address for changes. When the address changes (which it eventually will, by definition), the software contacts the DDNS service to update your account with the new IP address.

This means that so long as the Dynamic DNS software is always running and can detect a change in the IP address, the DDNS name you have associated with your account will continue to direct visitors to the host server no matter how many times the IP address changes.

The reason a Dynamic DNS service is useless for networks that have static IP addresses because the domain name does not need to know what the Internet Protocol address is after it's beginning told of it the first time. This is because static addresses don't change.

Note: A DDNS service is really only part of the equation when serving files through the internet from your computer. You also require to tell your router which computer on the network should be contacted when a user outside of the network tries to access the server. This is done through port forwarding on the router.

Why You Need a Dynamic DNS Service

A DDNS service is best if you host your own site from home, you have files you want to access no matter where you are, you like to remote into your computer when you are far away from home and, you like to manage your home network from afar, or any other similar reason.
What Is Dynamic DNS And How Dynamic DNS Service Works? What Is Dynamic DNS And How Dynamic DNS Service Works? Reviewed by Technowap on June 14, 2019 Rating: 5

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