How does the internet work most of us know how to use the internet without actually -understanding how it works sort of like electricity in your home you use it every day but may not understand the mechanics behind it and if the electric-
grid ‘s hard to comprehend then the internet must be impossible right wrong in the next few minutes.I’ll put you in the top 10% of people who understand how the internet works for security catalyst com.
Stuff works how web pages work
I’m Erin Titus whenever most people think of the internet this is what comes to mind the internet is not a bubble cloud even in the new age of cloud computing the; whole fuzzy cloud picture was created by people more concerned about job security explain how broadband works than education this is the actually buried in the ground”
it might be fiber optics copper or occasionally being two; satellites or through ;cellphone networks but the internet is simply a wire the internet is useful because two computers connected directly to this wire ;can communicate a server is a special computer ;
connected directly to the internet and web page show the internet work are files on that servers hard drive every server has a unique Internet protocol address- or IP address just like a postal address IP addresses help computers find each other but since 72 . 14 . 205 .
Institute of internet diagrams
100 it doesn’t exactly roll off the tongue we also give them names like google.com facebook.com or security -catalyst com so this is how it works your computer at home is not a server because it’s not connected ;directly to the internet computers you and I use every day are called clients because they’re; connected in directly to the internet through an internet service provider here we’ll pretend that this is my home laptop and I’m using DSL no .
Internet infrastructure diagram
let’s pretend that I want to visit aol.com which is coincidentally both a server and an isp I hop onto my laptop with DSL go through my isp onto the internet and look at aol.com my computer connects with aol.com and; I can look at this web pages now let’s say that I want to send an email to a truth and truth has AOL dial-up from home and I’ve got a Gmail account.
I log on to Gmail com and compose a message to nth roots email address Andrew that elle.com once i click send gmail.com since the email to aol.com the next day.
Truth dials into AOL servers and retrieves the email whenever an email ,
picture or webpage travels across the internet computers break the information into smaller pieces called packets when information; reaches its destination the packets are reassembled; in their original order to make a picture email web page or tweet to keep ;
Understanding how the internet works
your packets from accidentally ending up on your bosses screen that could be embarrassing the solution to that problem is ;IP addresses and routers everything connected directly or indirectly to the Internet has an IP address everything that includes your-
computer servers cell phones and all of the equipment in between anywhere two or more parts of your packets .
find their way to and from your computer; imagine each packet as a piece of candy wrapped in several layers the first layer is your computer’s IP address your computer: sends the packet to the first router which adds its own.
What does the internet do?
IP address each time to pack it reaches a new router another layer is added until it reaches the server then when the server sends back information it creates packets with an identical wrapping as a packet makes its way over the internet back to your computer each router unwraps a layer to discover where to send the packet next until it reaches your computer.
Not your bosses, and that’s how the internet works in five minutes or less and you’re now easily in the top 10% of people who; understand the basics of the internet if you found this video; helpful check out security catalyst, for all kinds of ideas on how to protect your information.