Quoting Timothy Murphy <gayleard at eircom.net>: > I'm running two servers, one with a fixed IP address > and the other with a dynamic address. > > This is probably a very ignorant question, > but what does dyndns do that I could not do myself? In principle, nothing. But you aren't their use case. At wikipedia's page on dyn is, "Dyn was conceived as an open source, community-led student project back by Jeremy Hitchcock, Tom Daly, Tim Wilde and Chris Reinhardt while pursuing undergraduate studies at Worcester Polytechnic Institute.[2] In the beginning, Dyn enabled students to access lab computers and print documents remotely. The project quickly outgrew its original purpose and soon gravitated towards domain name system (DNS) services. The first iteration was a free dynamic DNS service known as DynDNS, which allowed users to register a subdomain that points to a computer with regularly changing IP addresses, such as those served by many consumer-level Internet service providers. An update client installed on the user's computer, or built into a networked device, such as a router or webcam, keeps the hostname up to date with its current IP address. "This free service eventually became costly for the founders to support. Looking to gauge interest, the project was set to be shut down unless users were able to reach a $25,000 fundraising goal. They ended up raising over $40,000." There's more. So with sufficient free time and education and resources anyone could do what dyn did. They commodified it and made it easy for non-specialists, that's all. Dave > > -- > Timothy Murphy > e-mail: gayleard /at/ eircom.net > School of Mathematics, Trinity College, Dublin 2, Ireland > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > -- I and the public know What all schoolchildren learn, Those to whom evil is done Do evil in return. -- W. H. Auden