This php script stores all information in a mySQL database for maximum security, portability, and reliabliity. DynamicFreeDNS ip address updater only updates if your i.p. changes. Works with almost any dynamic dns provider. Can get your local i.p. from router or from external url. Web (php) based interface makes managing several domains with several update urls each manageable.
Easy and simple. Uses php and mySQL to keep your i.p. address current when using a dynamic ip address. Proven to keep my server ip address current for years now.