Simple DNS Plus supports TSIG signed dynamic updates directly through the DNS protocol.
This is the most efficient and recommended way to do dynamic updates.
DynDNS client software known to support TSIG signed dynamic DNS updates:
- "DynSite" from http://noeld.com/dynsite.asp (Windows)
- "Direct Update" by William Levra-Juillet available from download.cnet.com and other download sites (Windows)
- "IPUpdate" from http://ipupdate.sourceforge.net (Windows / Linux)
Alternatively, you can use almost any existing DynDNS client software by using HTTP-based updates - see reference article below.