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Ana Sayfa Dynamic DNS

Dynamic DNS

(also DDNS)

What is dynamic DNS (DDNS)?

Dynamic DNS is a service that automatically updates DNS servers’ records in real time. Websites used to have dedicated IP addresses that rarely changed. As ISPs started assigning IP addresses dynamically because of global IP chortage, websites had to either pay to have a static IP address or figure out a way to keep their DNS records up to date. That's where the dynamic DNS system came into play.

See also: DNS proxy, DNS cache, DNS filtering, DNS flushing, DNS hijacking, DNS over HTTPS, DNS port, DNS query, DNS record, DNS redirection, DNS resolution, DNS sinkhole

Why is dynamic DNS important?

Dynamic DNS (DDNS) is important because it allows devices with frequently changing IP addresses, such as home networks or remote devices, to remain accessible via a consistent domain name. Normally, when an IP address changes (which happens often with home or small business internet services), users would lose the ability to access the network or device without knowing the new IP. Dynamic DNS solves this by automatically updating the domain name with the current IP address, ensuring continuous connectivity.

Dynamic DNS (DDNS) advantages

  • Affordable hosting. DDNS allows users to host services like websites or servers without purchasing expensive static IP addresses from their ISP.
  • Simple remote access. DDNS enables users to create a user-friendly, memorable hostname for easy remote access to their devices, such as home NAS, security cameras, or gaming servers.
  • Automatic IP address updates. DDNS eliminates the need for manual updates whenever an ISP assigns a new IP address, ensuring uninterrupted connectivity to the user's devices.

How dynamic DNS works

Dynamic DNS (DDNS) works as follows:

  1. 1.IP addresses change. Most internet service providers assign dynamic IP addresses to home users, meaning your public IP address can change periodically without warning.
  2. 2.Automated updates. A DDNS client on your network detects when your IP address changes and automatically sends the new address to the DDNS service. The service then updates the DNS record to make sure your domain name always points to the correct, current IP address.
  3. 3.Example. You can set up a hostname like myhome.ddns.net that will always connect to your home computer, even if your home's public IP address changes, according to IONOS and Pair Domains.

How to set up DDNS

To set up Dynamic DNS (DDNS), follow these general steps:

  • Select a reliable DDNS service provider that offers the features you need.
  • Sign up for an account with your chosen DDNS provider and set up a domain name or hostname for your device.
  • Access your router's settings or the device you want to connect to remotely. Look for a DDNS or Dynamic DNS section.
  • Enter your DDNS provider, domain name or hostname, and account credentials into the designated fields on your router or device.
  • Save the settings and enable the DDNS feature on your router or device.
  • If you're hosting services, set up port forwarding on your router to direct incoming traffic to the appropriate device.
  • Access your device or service using the DDNS hostname to ensure it's working properly.

Note that the specific steps may vary depending on your DDNS provider and the device you're configuring. Consult their documentation for detailed instructions.