Now that DynDNS is no longer offering a free service, I was looking for a new alternative. Among the different dynamic dns providers, I choose the NoIP service.
Sources for their linux client are available, so I built it also for OS/2-eComStation. You can install the latest client with
'yum install noip'
If you don't have RPM installed, get the zip file from Netlabs ZIP repository: noip-2_1_9-1_1_oc00.zip is the current release.
Once installed, run 'noip2 -C' to configure the client.