rcep said:
If you spend any time on the Internet sending e-mail or browsing the Web, then you use domain name servers without even realizing it. Domain name servers, or DNS, are an incredibly important but completely hidden part of the Internet, and they are fascinating! The DNS system forms one of the largest and most active distributed databases on the planet. Without DNS, the Internet would shut down very quickly.
take a look at the DNS system so you can understand how it works and appreciate its amazing capabilities using this link
http://computer.howstuffworks.com/dns1.htm at howstuffwork site
Basicaly when you buy a domain you point your Name Server to your
Host and it takes anyware from 8 hours to 3 days before everyone in the world can access your site.
These internet routers like Sprint, AT&T, MCI for a few add your domain
with the NS1 & NS2 IP or url to point it (or send it) to which is the IP
block of your host.
These routers never actually know your real IP addy, only your
Hosts IP Block.
You're actual final address (IP) for your domain is given to you by your
Hosting Company when they direct it to your Box and the IPs alloted
to it.
You could put 100 domains on the same IP number if ya wished.
Or if I got an IP blacklisted for example I could change it to 37 other
IPs because I have 38 on one box.
And that change of IPs is done by you with cPanel or your host and
takes place rignt away as only your host has to redirect it and not
the internet routers..
Most of Net traffic is carried by MCI, Sprint and AT&T who switch
it to different routes to the shortest or (if that's busy) a round about
way like the phone co with phonecalls that might be made from
Chicago to someone in Iowa and go through Canada and California
to get there.
What's scarry is someone has in the past and could again write a worm
that makes those routers switches stay open which slows or could shut
the net down.
Someday run a Trace Route
Start/Run/CMD/tracert(SPACE)your domain
or IP and look at how it gets there from your puter.
The whole system is remarkable but basically simple, love the internet,
the farther it advances and more complicated it gets the easier it get for
the user..
How many people remember when the only Brouser was Mosiac??
Here's another good url to read about Domain Security..
http://www.dnssec.net/