Welcome to WebmasterWorld Guest from 184.108.40.206
my question is:
We all see IP numbers like this, 220.127.116.11
but when i check my stats i see things like this cacheH08a.cache.pol.co.uk or weed.mcc.wwwcache.ja.net listed under host [i use thecounter.com] can anyone tell me what they mean?
Each of those cryptic names should correlate to a specific IP number, just like a specific domain name (ie- foo.bar.mysite.com) would correlate to the site's IP address (ie- 0.12.34.56)
Did that make sense? :)
Each computer connected to the Internet has a unique IP address. Dialup users typically get an IP assigned each time they connect, called a dynamic IP. ALL of the information packets scrambling around between computers on the web use IP addresses to get from computer to computer.
Domain Name Servers do the conversion between domain names and IPs.
IPs are usually translated into domain names to make it easier on human users, after a packet or series of packets reaches it's destination.
A request from your browser for www.yahoo.com initiates a DNS lookup. The IP for yahoo is returned to your browser from your assigned DNS server. Your browser then sends a series of packets requesting info to the yahoo IP. Yahoo responds to your IP...
A good overview of how it all fits together is here [xoc.net].
Put simply, it's a name that correlates to a number. Probably so system administrators can keep track of what they're doing:
"Bob! There's a problem with banana.split.net! Looks like the internal harddrive failed!"As opposed to:
"Bob! There's a problem with 18.104.22.168! Looks like the internal harddrive failed!"
As soon as a system has so many boxes they can't call them "Server 1" and "Server 2" anymore, it's probably best to give them all catchy, memorable names...