What does Dynamic DNS mean?
Dynamic DNS, also commonly called Dyn DNS or DDNS, is a great technology that helps with auto-updating the name servers. Every time when the IP address (IPv4 or IPv6) changes for some reason, that beneficial service is going to refresh the DNS records – A record and AAAA record.
The A record and AAAA record are the DNS records responsible for pointing the domain name to its IP address. The A record is implemented for IPv4 addresses and the AAAA record for IPv6 addresses.
As a result, the users who are requesting to reach the host are going to get the freshly updated A or AAAA records, and they are going to access it successfully.
The Dynamic DNS is going to review constantly for changes in the IP addresses. So, when there is a difference, the Dynamic DNS is going to be triggered, and it is going to update.
How does it work?
If you aim to implement Dynamic DNS, you should sign up with a DNS hosting provider that offers that amazing service. Then you should install the provided software on the host device. It is going to apply exactly to the device or computer that is arranged as the server, such as a server for files or a web server. That software is going to supervise the dynamic IP address and whenever it shifts. So, when it notices a difference in the address, it reaches the Dynamic DNS service for updating the IP address of your account.
For the purpose of operating correctly and identifying the changes in the IP address, the DDNS software should work without any breaks. Therefore the DDNS name you have linked with your account is going to proceed to lead users to the host server even though the IP addresses could switch plenty number of times.
The Dynamic DNS service could not be necessary for networks that use a static IP address. The reason for that is simple, and static IP addresses are not changing. Yet, they could be very pricey, and they are not always the best option.
Ways to use Dynamic DNS
There are several popular cases that you might want to use Dynamic DNS.
- If you want to have access to your computer on the go (remote desktop connection). – In case you hold files that you desire to reach despite the location you are in the current moment, you are going to need to implement DDNS, for sure.
- If you want to create web pages on your home web server and make them publicly available. – It is perfect if you want to host your website from home and you desire to control your home computer network from a distance.
- CCTV surveillance – If you desire to place cameras, sensors, and different alarm components, you probably want them to work 24/7. Dynamic DNS could serve you for that task.
- DDNS is just right for easy access to your own game server or own mail server.