On Mon, Aug 8, 2011 at 19:03, Voytek Eymont <[email protected]> wrote:
> dumb DNS Q: > what's a way to have a dyndns name mapped to a host within own domain.tld ? Either pay them for their custom domain support, or have your domain expose a CNAME that points to their dynamic name. > can I map a dyndns host to a CNAME as a hostname on mydomain.tld ? CNAME is like a symbolic link, and it works the other way around: you point to the dyndns host from the CNAME on your own domain. > so, I have a machine at home with not-fixed ip, on dyndns, as > 'myhomepc.dyndns.com' > > if I set a bind record as: > > myhomepc CNAME myhomepc.dyndns.com. > > to have myhomepc.mydomain.tld > > that works, BUT, will that work once ip changes, will that propagate to my > CNAME...? So, again, symlink: the way that a name is resolved is that when you hit a CNAME you read the target of it, and then go ahead and start the process from scratch with the new one. So, the "end user" system pretends that they typed in myhomepc.dnydns.com. instead of myhomepc.your.domain. and all. Make sense? Any IP changes matter only for the target name, and the CNAME is more or less unrelated. Daniel -- ♲ Made with 100 percent post-consumer electrons -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
