Dynamic DNS: What is it and how to use it?

Dynamic DNS explained

The Dynamic DNS (DDNS) automatically updates and changes the IP address of a host. Thanks to it, visitors are able to reach your website even in case its IP address changes.

As a very simple service, Dynamic DNS gives you the opportunity to connect with your various hosted services when the ISP changes your IP address (IPv4 or IPv6). Let’s say, for instance, you could have a web hosting server, database server, mail server, or maybe you utilize your home network for your CCTV cameras together with DDNS.

For ISPs, it is easier to administrate the network by changing the IP addresses. Therefore, they lease them to their customers only for a certain amount of time. For that purpose, they assign this task to a DHCP server. As a result, the customers receive a different new IP address whenever the time period expires.

The solution – DDNS is actually easy to set up and use. Typically this service is free and suits various situations.

Advantages of Dynamic DNS

Some of the advantages that DDNS is able to provide are: 

  • A simple and easy solution. All you have to do is get the service, and then the software is installed. Ready!
  • DDNS is a cost-effective option. You can find paid and free DDNS providers. Yet, it’s more affordable than spending for static IP addresses for your business’ devices.
  • You will receive notifications in real-time for the IP changes to the DNS server.
  • Undisrupted access to your server or website. It doesn’t matter if the IP address changes. Your visitors are going to be able to reach your website.
  • Placing security cameras is going to require a great and stable connection to the Internet. Thanks to Dynamic DNS, they will keep functioning 24/7.
  • Easy and smooth remote access or VPN access for employees that work from home. 
  • If you are using your computer to host an app, game server, or website, you will sense the advantages of Dynamic DNS.

​How to use it?

  1. First, you have to open the control panel of your router. You have to be connected to the router and type its IP address or hostname in a browser. In the router’s manual, you can find the IP address or the hostname. Yet, you can find them on the router itself too.
  2. Log in to the control panel with the original username and password. If you have modified them, employ the new ones, or reset the router.
  3. Then, find the Advances settings. It is possible, the menu to also be named More settings.
  4. Next, find the Dynamic DNS menu or DDNS menu. It is the same.
  5. Write all the data about your Dynamic DNS service provider. 

Dynamic DNS Provider – Its name. It could be a dropdown menu, yet it depends on the router. 

Username: Your username that you used to register.

Password: Your password with the DNS provider. 

Hostname/Domain: The hostname that you made. 

Server/Server Address: The name server or its IP address that the provider gives you. 

Lastly, you have to save everything. There could be an Update button in some routers, which is going to show you the current IP address. In other cases, there could be a Status button where you can notice the result.

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