Wow, you sure do like to froth at the mouth. *and* *stuff*
So, picture it. A long time ago, Joe installs a few cameras around the outside of his house connected to a hardware DVR, which Joe installed himself because Joe is handy enough with running cables. It works adequately, and Joe is happy with it. But Joe's Internet Kung-Fu is not very strong, so it just sits there disconnected from the world.
Joe runs into his acquaintance Localgeek, and in the course of a normal conversation, Joe mentions to Localgeek that he has this camera system. Localgeek, after learning that it's not connected to teh Interweb, mentions that Joe can view his cameras from Randomspot with a bit of Kung-Fu.
Joe likes the idea, which Joe didn't even know was possible, and asks Localgeek if he would mind stopping by to have a look at it.
Localgeek stops by and leisurely configures the port forwarding and dynamic DNS in about 20 minutes time. Joe tosses him a few bucks, and says thank you.
Years go by, everything works fine. Joe switches ISPs to a company called Newhost, and everything works fine. Localgeek has long forgotten having even worked on Joe's cameras, and Joe still enjoys viewing the system from Randomspot.
Except Newhost doesn't rotate IP addresses very often, and Joe's old router isn't bright to send updates to dyndns unless the IP address actually changes.
And then, one day, Joe finds that he can't view his cameras from Randomspot anymore. (Woops.)
Joe is bemused by this, because things always worked fine. Joe calls up Localgeek, and Localgeek immediately understands the problem and decides to change the firmware on the router to one with a better dyndns implementation that can send updates regularly.
But then both Joe and Localgeek are very surprised when they discover that the previous service isn't available anymore. Joe never received an email from dyndns warning him about the expiration because his old email address (from way back when) stopped working when he switched to Newhost.
Is Joe's surprise because:
1. He has a warped sense of entitlement and lacks sufficient public admonishment for his overwhelming greed
2. He neglected to retain Localgeek with an ongoing service contract for maintenance on his $50 router
3. His Kung-Fu is simply very weak.