Yes, trees & leaves! :) Just think of an industrial park with main directory of buildings that contain businesses, maybe sub-directories within those buildings of offices/departments/people, then back out and consider there are many such parks all over the world.
At each level you have domains controlled by organizations. Some are global (root), some local (tree), some are subsets of locals (leaf) but all exist at the whim of the organization unit above them including the roots. So .com TLD answers to the Internet controlling body. Microsoft.com answers to .com TLD. search.microsoft.com answers to microsoft.com. If microsoft lost the right to their domain, all the sub-domains would also be off-line. How this plays out is that .com DNS authoritatively resolves microsoft.com's DNS server, microsoft.com DNS authoritatively resolves search.microsoft.com DNS server, and search.microsoft.com DNS would authoritatively resolve say west.search.microsoft.com DNS server. There is a great O'Reily book called DNS & BINDS that explains this nicely. LOL, I know this sounds like a lot but you come to simply accept it eventually and then forget how it works by accepting that it does for you as long as your part is setup correctly. DHSinclair wrote: > This will get more reading? Once it got to "trees" and "leaves" I had to > get the storm boots... :) > Can we make it any more complicated? Even though I do admire you that > grasp and work with > this stuff. One day, maybe. > Best, > Duncan <snip> __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
