I mean how does our browser get IP address of a website www.yahoo.com for example
I need someone explain this to me please
http://img444.imageshack.us/img444/1898/dnsaf5.jpg
thank you
2007-03-23 19:17:17 · 4 answers · asked by M Shadows 1 in Computers & Internet ➔ Internet
Okay, let me try to explain this in simplistic terms. It's actually significantly more complicated than this, but this will give you the gist.
We, as humans, use domain names such as yahoo.com, microsoft.com, etc., because they're easier to remember than numbers, however, they actually do stand for numbers.
The Internet has several top level Domain Name Servers (DNS servers) that have a listing of of domain names to IP addresses. So when you put in, for example, www.yahoo.com, into your browser, your computer shouts out to the domain servers and says "hey, I need an IP address for www.yahoo.com, what's the IP address?" At this point, the domain name server hands the IP address to your computer and off you go to that website.
The actual process is somewhat more sophisticated than that, for instance, your ISP and even your own computer, have their own list they compile over time and top level domain servers replicate their listings to lower level domain name servers, however, that's the gist of what happens. Top level domain name servers resolve domain names to IP addresses. That diagram is illustrating how this process happens, from a technical standpoint.
p.s. I can understand your confusion, that diagram that you linked to is lame, no wonder you can't understand it. If I didn't already know this stuff, I'd probably have no idea what it was saying either. It's not a very clear concise explanation.
2007-03-23 19:27:23 · answer #1 · answered by Anonymous · 0⤊ 0⤋
DNS servers. Your computer is configured with one or more DNS servers either by DHCP or statically (when you configured your IP address) the resolver goes out to these dns servers and they resolve the name (if they don't know the answer they will go out and resolve it from another server. The whois info will give you a list of the authoritative servers who know what the zone info is)
2007-03-23 19:22:54 · answer #2 · answered by mackn 3 · 0⤊ 0⤋
It is called a DNS process...Look up the definition of DNS and it will explain how a url like yahoo.com is translated.
2007-03-23 19:24:55 · answer #3 · answered by hwky 3 · 0⤊ 0⤋
It checks with the local DNS server.
2007-03-23 19:20:38 · answer #4 · answered by Kasey C 7 · 1⤊ 0⤋