I found a solution that works after much trial and error and searching. The biggest issue I had was I have a paid domain and I want to update public DNS with my IP whenever it changes at home since I have cable company internet that doesn't have a static IP option. I was prior using a Linksys router with DD-WRT firmware which could update directly to the DNS updater service I've used for ages called ZoneEdit. Since the Airport Extreme/Time Capsule has not DNS updater function (anymore at least, looks like it used to) I figured the next best option was to run some app on my always on Mini to do the same function but everything I could find either was overly complicated, didn't support zoneedit or was outdated and wouldn't run on Mountain Lion. I finally found this site http://dnsomatic.com/ which is a sort of in-between updater service, you send to them and then they send to the dynamic DNS updater service(s) of your choosing. So I created an account and associated my zoneedit info then found a dated but functional client app that actually works on Mountain Lion called "DNS-O-Matic Updater". While the developers site for that app is down or gone, I was able to find it on Macupdate and the version they have hosted works fine. http://www.macupdate.com/app/mac/26438/dns-o-matic-updater I'll leave my original post below this just in case it helps someone else out in the future. ================================================ I haven't been able to find anything so far. I picked up a Time Capsule over the holidays on a great steal of a deal and now the one thing I no longer have the ability to do with my home router is update my home IP when the IP changes. I've done some digging and it seems like nothing exist that I can find that actually works on Mountain Lion. Does anyone know of any solution to this? I'm specifically using ZoneEdit for DNS. I have a Mini on at home 24/7 acting as a server so having an app that runs on it to update whenever there's a change would be fine. Of course if I'm missing some way to get DNS updates through my Time Capsule, I'm open to suggestions. Thanks!