ddnsu provides a small dynamic DNS client.
ddnsu is a "small" dynamic dns updating tool. its intended use is to perform an update to a particular online dynamic dns service, and to have a very small file size so it can be used in embedded environments.
to make this useful you need a separate app which checks when the IP address of an interface has changed.
a dynamically-linked glibc binary is ~17kB, so it fits easily into systems which don't have a full install of perl or unnecessary libraries.
What's New in This Release:
· This release adds improved logging and syslog support and SSL support.
· The binary size without the new features is essentially the same.
Product's homepage