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Bt home hub dynamic dns not updating

I just made a test dns entry: " test.uk " and pointed it to my public IP.

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Here is a screen shot of the Dynamic DNS configuration page of my NAT router (BT Home Hub).When I first created the account, I was given a form (see edit) with more options.However don't seem to be able to edit these settings now, I can't find an option to do so.Dynamic DNS is used in large networks that host internal services, and use their own internal DNS and DHCP servers.However small companies, and home networks don’t normally have their own DNS server so why would they need Dynamic DNS ?Have you found that hosting a web site or FTP server on your own home computer is close to impossible because you have a dynamic IP address that changes every time you connect to the Internet?

Use our Dynamic Hostname service and get a name on one of our domains (ex: you.dtdns.net).

The network diagram below shows the configuration The Internal IP address is assigned to the internal server by the NAT router, but usually in these circumstances we will give it a static internal IP address.

To make the web service available on the internet we use a technique called port forwarding ( see the port forwarding and Internal vs external IP address articles for details).

Dynamic DNS Services are used by small companies and individuals when they want to publish a service on the Internet, and it is hosted within an internal network that uses a NAT router to connect to the internet.

In the following discussion we are going to assume that we want to make a web server located on an internal server available on the internet.

The main providers all work in a similar way and the registration process is simple.