At Now-DNS  we've tried to make it as simple as possible to keep your DDNS domains up to date with your current IP address, whether it be IPv4 or IPv6.    For Windows users we have two simple auto updating clients. Our Updater Client  is run by thousands of users every day.    The source code for the Updater Client is published on github here  if you are interested.   We also publish a simple Powershell updater script that can be scheduled to run periodically to check in and update your IP.   Powershell DDNS update script       For Android users we recommend using Neil Boyd's Dynamic DNS Client . This client works well with Now-IP and is very simple to get working.      Linux users (or any *nix) are encouraged to use our API directly using tools such as curl. Updating your IP is as simple as running the following command.  curl -u <email>:<password> "https://now-dns.com/update?hostname=<hostname>"   You need to replace the following   <email&g...