Go Back   DreamTeamDownloads1, FTP Help, Movies, Bollywood, Applications, etc. & Mature Sex Forum, Rapidshare, Filefactory, Freakshare, Rapidgator, Turbobit, & More MULTI Filehosts > World News/Sport/Weather > Piracy/Warez/Legal/Hackers/Scams & Internet News

Piracy/Warez/Legal/Hackers/Scams & Internet News Anything Related to Piracy, Warez, Legal Matters, Hackers, Internet News & Scams and How it Affects Sites/Members Can Be Read Here. Please do NOT post links to other Sites, but you May Name Them if They are Scam Sites

Hallo to All Members. As you can see we regularly Upgrade our Servers, (Sorry for any Downtime during this). We also have added more Forums to help you with many things and for you to enjoy. We now need you to help us to keep this site up and running. This site works at a loss every month and we appeal to you to donate what you can. If you would like to help us, then please just send a message to any Member of Staff for info on how to do this,,,, & Thank You for Being Members of this site.
Post New ThreadReply
LinkBack Thread Tools Display Modes
Old 21-02-18, 11:35   #1
Ladybbird's Avatar
Join Date: Feb 2011
Posts: 34,920
Thanks: 23,580
Thanked 12,735 Times in 8,571 Posts
Ladybbird has a reputation beyond reputeLadybbird has a reputation beyond reputeLadybbird has a reputation beyond reputeLadybbird has a reputation beyond reputeLadybbird has a reputation beyond reputeLadybbird has a reputation beyond reputeLadybbird has a reputation beyond reputeLadybbird has a reputation beyond reputeLadybbird has a reputation beyond reputeLadybbird has a reputation beyond reputeLadybbird has a reputation beyond repute

Awards Showcase
Best Admin Best Admin Gold Medal Gold Medal 
Total Awards: 6

Computers VIDEO > How Does the Internet Work?

What Is the Internet, Exactly?

by Chris Hoffman HTG, 20th February, 2018

Everyone’s talking about the internet and whether, or how, it should be regulated. But not enough people know how the internet actually works—or what exactly the internet is.

You probably have your own “local area network” at home, and it’s made up of all the devices connected to your router, which connects to the internet. The word “internet” refers to a worldwide system of “interconnected computer networks”.

That’s all the internet really is—a large number of computer networks all over the world, connected together. Of course, there’s a lot of physical hardware—from the cables under your city streets to the massive cables on the ocean floors to satellites in orbit around the planet—that makes this communication possible. There’s also a lot of software at work in the background, allowing you to type in a website address like “google.com” and have your computer to send information to the physical location where that website is located in the fastest way possible.

Even when you’re just connecting to a single website, there’s a lot more going on under the hood. Your computer can’t directly send a piece of information, or “packet” of data, to the computer hosting the website.

Instead, it passes a packet to your home router with information about where it’s going and where the web server should reply. Your router then sends it to the routers at your internet service provider (Comcast, Time Warner, or whoever else you use), where it’s sent to another router at another internet service provider, and so on, until it reaches its destination. Any packets sent back to your system from the remote server make the reverse journey.


To use an imperfect analogy, it’s a bit like sending a letter in the mail. Your local postal employee can’t just grab the letter and take it directly across the country or continent to its destination address. Instead, the letter goes to your local post office, where it’s sent to another post office, and then another one, and so on, until it gets to its destination. It takes longer for a letter to get to the other side of the world than the other side of the country because it has to make more stops, and that’s generally true for the internet as well. It will take a bit longer for packets to go longer distances with more transfers, or “hops”, as they’re called.

Unlike with physical mail, sending data packets is still very fast, though, and it happens many times a second. Each packet is very small, and large numbers of packets are sent back and forth when computers communicate—even if one is just loading a website from another one. A packet’s travel time is measured in milliseconds.

Data Can Take Many Paths

This network of networks is a little more interesting and complex than it might seem. With all these networks connected together, there isn’t just a single path data takes. Because networks are connected to multiple other networks, there’s a whole web of connections stretching out around the globe. This means that those packets (small pieces of data sent between devices) can take multiple paths to get where they’re going.

In other words, even if a network between you and a website goes down, there’s usually another path the data can take. The routers along the path use something called the Border Gateway Protocol, or BGP, to communicate information about whether a network is down and the optimal path for data to take.

Creating this interconnected network (or internet) isn’t just as simple as plugging each network into a nearby one, one by one. Networks are connected in many different ways along many different paths, and the software running on these routers (so named because they route traffic along the network) is always working to find the optimal paths for data to take.

You can actually see the path your packets take to a destination address by using the traceroute command, which tells routers along the path the packet travels to report back.

For example, in the screenshot below, we traced the route to howtogeek.com from a Comcast internet connection in Eugene, Oregon.

The packets traveled to our router, through Comcast’s network north to Seattle, before being routed onto a Tata Communications (as6453.net) backbone network through Chicago, New York, and Newark before making their way to a Linode data center in Newark, New Jersey where the website is hosted.

We speak of packets “traveling”, but of course, they’re just pieces of data. A router contacts another router and communicates the data in the packet. The next router uses the information on the packet to figure out where it’s going and transmits the data to the next router along its the path. The packet is just a signal on the wire.

IP Addresses, DNS, TCP/IP, HTTP, and More Details

That’s a high level overview of how the internet works, at least. There are lots of little topics that are important to the internet we all use, and which you can read about in more detail.

For example, every device on a network has a unique, numerical IP address on that network. Data is sent to these addresses. There are both older IPv4 addresses and newer IPv6 addresses. IP stands for “internet Protocol”, so an IP address is an “internet Protocol address”. These are the addresses that devices on the network use and speak.

People use human-readable domain names like howtogeek.com and google.com, which are more memorable and understandable than a series of numbers. However, when you use domain names like these, your computer contacts its domain name system (DNS) server and asks for the numerical IP address for that domain.

Think of it like a large, public address book for phone numbers. Companies and individuals who want domain names have to pay to register them. You probably use your internet service provider’s DNS service, but you can choose to use another DNS server like Google Public DNS or OpenDNS.

Underlying all this, there are different layers of “protocols” that devices use to communicate, even when using internet protocol. The most common transport protocol is TCP/IP, which stands for Transmission Control Protocol over internet Protocol. TCP is all about reliability, and devices chat back and forth and track packets of data to ensure nothing gets lost along the way. If it does, it’s noticed and resent. There are also other protocols, like UDP, which throws out the reliability stuff for raw speed.

Above transport protocols like TCP and UDP are application protocols, like HTTP or HTTPS—the hypertext transfer protocol, which your web browser users. The HTTP protocol works on top of the TCP protocol, which works on top of the IP protocol.
Other applications might use different protocols or create their own protocols that nevertheless operate on top of protocols like TCP and IP. So much of the technology we use involves layers of technology built on other layers, and the same is true for the internet.

Once you understand the basics, you can better appreciate why this IT Crowd scene is so funny, too. (VIDEO)
Nil Carborundum Illegitemi My Advice is Free My Friendship is Priceless

FREEBIES Continue to be a BURDEN on Our Increasing Server/Privacy Costs. Please DONATE Something to HELP...PM an Admin for Further Info.

& Thanks to Those That Have Taken The Time to Register & Become a Member of ... 1...
Ladybbird is online now  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Post New ThreadReply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
SEO by vBSEO 3.5.2
Designed by: vBSkinworks