Posted 4/1/2019 11:01 (#7413948 - in reply to #7410722) Subject: RE: DNS, IP address primer
Isn’t it funny how many conversions and lists and charts this all goes through.
We humans like to use letters/ names to remember stuff.
It all gets changed into numbers for a computer to use it.
And not even numbers we humans are familiar with, just simple binary. A 0 or a 1.
So we humans like to semember names for web addresses, like a street name.
The computer has to take that name and go look it up on a chart somewhere and turn it into a group of 4 numbers with periods separating them. That is the address the computer/internet actually understands and uses.
These charts of text names that equal Internet address numbers are kept several places.
A big master list somewhere, and then many copies around the world, and more local ones always a smaller list of just what is used in the area most often. And your computer keeps its own chart of places you have been so it is real quick and easy to visit them a second time.
With all this chart looking up, it’s amazing anything gets done at all!
Sometimes the charts get errors or don’t match up, and then it’s like getting a wrong address, then what, your computer is lost. The charts are supposed to go out and look from the next bigger chart down the road, but that process sometimes breaks down too. And then it’s really lost.
Getting the bad lists to flush out and start over with a good new chart of web address conversions is the goal, but if the problem is down the road a ways on someone else’s computer chart that might take a while. Very rare, but happens.
And everything is just a 0 or a 1, over and over and over to figure it all out......