Dynamic DNS server/updater on Linux.?

I would like to set up a dynamic dns server so that my company can offer DDNS services for remote DVRs (Digital Video Recorders)- which are mainly Windows xp with some linux boxes. Is there a free linux program available to help set up a DDNS server for this purpose? Im looking for a server program very similiar to MintDNS (google it), but able to run on a linux system. (SUSE preferrably)