DDNS (Dynamic Domain Name System) is a service that allows the IP address of a device connected to the Internet, which may change frequently (a dynamic IP), to be automatically associated with a domain name.

This allows the device to be accessed using a consistent, easy-to-remember name, rather than an IP address that can change each time the device reboots or the Internet Service Provider renews IP assignments.

How does DDNS work?

We explain how the DDNS service works:

1. Registering with a DDNS provider: The first step is to register for a DDNS service. There are many DDNS service providers, some of the most well-known include No-IP, DynDNS, and DuckDNS, among others. When you register, you choose a domain name that will be linked to your dynamic IP address.
2. Device settings: You configure your device (usually a router or security camera) to communicate with the DDNS service. This involves entering your DDNS account details in the device settings, such as username, password, and chosen domain.
3. IP address update: Whenever the device's IP address changes, the device automatically notifies the DDNS service about the IP change. This is usually done through DDNS client software running on the device or through applications built into the device's firmware.
4. DNS resolution: When someone wants to connect to your device, they enter the associated domain name into their browser or app. The DDNS system resolves this domain name to the current IP address of the device, allowing the connection.

Advantages of DDNS

• Constant remote access- DDNS is crucial for users who need remote access to devices on a home or small business network, such as security cameras, network storage systems (NAS), media servers, etc.
• Easy to remember: A domain name is much easier to remember than a series of IP numbers, especially when it changes regularly.
• Effective cost: Many DDNS services offer free options that are sufficient for users with basic remote access needs.

Common Uses of DDNS

• video surveillance: Access security cameras from anywhere without needing to know the current IP of the device.
• Remote server management: Manage servers located in remote locations without the need for static IP connections.
• Online games and media servers: Host games and media servers that need to be publicly accessible.

In summary, DDNS is an effective solution for managing dynamic IP addresses in situations where you need constant and reliable access to a device over the Internet.