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so how does the<font color="#CCCCCC"> internet work</font><font color="#E5E5E5"> most of us</font>
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know how to use the<font color="#CCCCCC"> internet</font><font color="#E5E5E5"> without</font>
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actually<font color="#CCCCCC"> understanding how it works sort</font>
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of like<font color="#E5E5E5"> electricity in your home you use</font>
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<font color="#E5E5E5">it every day</font><font color="#CCCCCC"> but may not understand the</font>
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mechanics<font color="#E5E5E5"> behind it and if the electric</font>
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grid<font color="#CCCCCC"> is difficult to understand then the</font>
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<font color="#E5E5E5">internet must be impossible</font><font color="#CCCCCC"> right</font><font color="#E5E5E5"> wrong</font>
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in the next few minutes<font color="#E5E5E5"> I'll put you</font><font color="#CCCCCC"> in</font>
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<font color="#E5E5E5">the top</font><font color="#CCCCCC"> 10 percent of people who</font>
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understand<font color="#E5E5E5"> how the internet actually</font>
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works<font color="#E5E5E5"> for</font><font color="#CCCCCC"> security</font><font color="#E5E5E5"> catalyst</font><font color="#CCCCCC"> comm I'm</font>
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<font color="#E5E5E5">Aaron Titus whenever most people think</font>
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<font color="#E5E5E5">of the Internet this</font><font color="#CCCCCC"> is what</font><font color="#E5E5E5"> comes to</font>
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mind<font color="#E5E5E5"> the</font><font color="#CCCCCC"> Internet is not a bubble cloud</font>
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even<font color="#CCCCCC"> in the new age</font><font color="#E5E5E5"> of cloud computing</font>
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<font color="#E5E5E5">the whole fuzzy cloud picture was</font>
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created by<font color="#E5E5E5"> people more concerned about</font>
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job security<font color="#CCCCCC"> than education</font><font color="#E5E5E5"> this is the</font>
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<font color="#CCCCCC">Internet</font><font color="#E5E5E5"> the Internet is a wire actually</font>
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<font color="#CCCCCC">buried in</font><font color="#E5E5E5"> the ground</font><font color="#CCCCCC"> it might be fiber</font>
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optics copper or occasionally beamed to
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satellites or through cell phone
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networks but the<font color="#CCCCCC"> Internet is</font><font color="#E5E5E5"> simply a</font>
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wire the<font color="#CCCCCC"> Internet is useful because two</font>
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computers<font color="#CCCCCC"> connected directly</font><font color="#E5E5E5"> to this</font>
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wire can communicate a server is a
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special<font color="#E5E5E5"> computer connected directly to</font>
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<font color="#E5E5E5">the</font><font color="#CCCCCC"> Internet and</font><font color="#E5E5E5"> web</font><font color="#CCCCCC"> pages are files on</font>
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that<font color="#E5E5E5"> servers hard drive every server has</font>
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a unique Internet Protocol address<font color="#CCCCCC"> or</font><font color="#E5E5E5"> IP</font>
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address<font color="#CCCCCC"> just</font><font color="#E5E5E5"> like a postal address IP</font>
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<font color="#CCCCCC">addresses help computers find each other</font>
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<font color="#E5E5E5">but since 72 1412 I've done</font><font color="#CCCCCC"> 100</font><font color="#E5E5E5"> it</font>
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doesn't exactly roll<font color="#CCCCCC"> off the tongue</font><font color="#E5E5E5"> we</font>
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also give them names<font color="#CCCCCC"> like google.com</font>
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<font color="#E5E5E5">facebook.com or security catalyst</font><font color="#CCCCCC"> comm</font>
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<font color="#E5E5E5">so this is how it works your computer at</font>
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<font color="#E5E5E5">home is not a server because</font><font color="#CCCCCC"> it's not</font>
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connected<font color="#CCCCCC"> directly to the Internet</font>
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computers you and I use<font color="#CCCCCC"> everyday are</font>
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called clients because they're<font color="#E5E5E5"> connected</font>
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indirectly to the<font color="#E5E5E5"> Internet through an</font>
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Internet service<font color="#E5E5E5"> provider here we'll</font>
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pretend<font color="#E5E5E5"> that this is my home laptop and</font>
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I'm using<font color="#E5E5E5"> DSL now let's pretend that I</font>
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want to visit<font color="#E5E5E5"> aol.com</font><font color="#CCCCCC"> which is</font>
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<font color="#CCCCCC">coincidentally both a server and an ISP</font>
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<font color="#E5E5E5">I hop onto my</font><font color="#CCCCCC"> laptop with DSL go through</font>
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<font color="#E5E5E5">my ISP onto the internet and look at</font>
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aol.com<font color="#E5E5E5"> my computer connects with AOL</font>
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<font color="#E5E5E5">comm and I can look at</font><font color="#CCCCCC"> this</font><font color="#E5E5E5"> web pages</font>
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<font color="#E5E5E5">now let's say that I want to send an</font>
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email
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and Ruth and<font color="#CCCCCC"> Ruth has AOL dial-up from</font>
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home and I've got a gmail account<font color="#CCCCCC"> I log</font>
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on<font color="#E5E5E5"> to gmail.com and compose a message to</font>
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Aunt Ruth's<font color="#E5E5E5"> email address</font><font color="#CCCCCC"> Ann true that</font>
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<font color="#CCCCCC">lol calm once I</font><font color="#E5E5E5"> click send gmail.com</font>
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<font color="#E5E5E5">since the email to a</font><font color="#CCCCCC"> o L calm the</font><font color="#E5E5E5"> next</font>
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day Aunt<font color="#E5E5E5"> Ruth dials into AOL servers and</font>
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retrieves the email whenever an email
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picture or<font color="#CCCCCC"> webpage travels across</font><font color="#E5E5E5"> the</font>
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<font color="#CCCCCC">internet computers break the information</font>
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<font color="#E5E5E5">into smaller pieces called packets when</font>
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<font color="#CCCCCC">information reaches its destination the</font>
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packets are reassembled in their
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original<font color="#CCCCCC"> order to make a picture</font><font color="#E5E5E5"> email</font>
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<font color="#E5E5E5">web page or tweet</font>
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<font color="#E5E5E5">okay so imagine you're at work sitting</font>
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<font color="#E5E5E5">next to your boss and you're both</font>
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surfing online<font color="#E5E5E5"> your boss is</font><font color="#CCCCCC"> doing market</font>
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research<font color="#E5E5E5"> and you're updating your</font>
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<font color="#CCCCCC">Facebook</font><font color="#E5E5E5"> profile you're both sending</font>
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packets back and forth over<font color="#E5E5E5"> the Internet</font>
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<font color="#E5E5E5">but what's to keep your packets from</font>
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accidentally ending up on your<font color="#E5E5E5"> boss's</font>
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<font color="#E5E5E5">screen that could be embarrassing</font><font color="#CCCCCC"> the</font>
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solution to that problem<font color="#E5E5E5"> is IP addresses</font>
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<font color="#E5E5E5">and routers everything connected</font>
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directly<font color="#E5E5E5"> or indirectly to the Internet</font>
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has<font color="#E5E5E5"> an IP address everything that</font>
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includes your computer servers<font color="#E5E5E5"> cell</font>
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phones and all of the equipment<font color="#CCCCCC"> in</font>
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between<font color="#CCCCCC"> anywhere two or more parts of</font>
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<font color="#E5E5E5">the</font><font color="#CCCCCC"> internet intersect</font><font color="#E5E5E5"> there's a piece</font>
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of<font color="#CCCCCC"> equipment called a router</font><font color="#E5E5E5"> routers</font>
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direct your packets<font color="#E5E5E5"> around the</font><font color="#CCCCCC"> internet</font>
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helping each packet get one step closer
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<font color="#E5E5E5">to</font><font color="#CCCCCC"> its destination every time you visit</font>
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<font color="#E5E5E5">a website upwards of ten to fifteen</font>
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routers may help<font color="#E5E5E5"> your packets find their</font>
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way to<font color="#CCCCCC"> and from</font><font color="#E5E5E5"> your computer</font><font color="#CCCCCC"> imagine</font>
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each packet as a piece<font color="#E5E5E5"> of candy wrapped</font>
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<font color="#E5E5E5">in several layers the first layer</font><font color="#CCCCCC"> is</font>
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your computer's IP address your computer
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sends the packet<font color="#CCCCCC"> to the first router</font>
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which adds its own<font color="#E5E5E5"> IP address each time</font>
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the packet reaches a new router another
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layer is<font color="#E5E5E5"> added until it reaches</font><font color="#CCCCCC"> the</font>
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server then when the server sends back
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<font color="#CCCCCC">information</font>
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<font color="#E5E5E5">it creates packets with an identical</font>
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wrapping as the packet makes its way
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<font color="#E5E5E5">over</font><font color="#CCCCCC"> the</font><font color="#E5E5E5"> internet back to your computer</font>
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<font color="#CCCCCC">each router</font><font color="#E5E5E5"> unwraps a layer to discover</font>
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where to send<font color="#E5E5E5"> the packet next until it</font>
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reaches<font color="#E5E5E5"> your computer and not your</font>
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bosses<font color="#E5E5E5"> and that's how the internet works</font>
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<font color="#E5E5E5">in five minutes or less</font><font color="#CCCCCC"> and you're now</font>
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<font color="#CCCCCC">easily in the top 10 percent of people</font>
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who understand the basics of<font color="#E5E5E5"> the</font>
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<font color="#CCCCCC">Internet</font><font color="#E5E5E5"> if you found this video helpful</font>
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<font color="#CCCCCC">check out security</font><font color="#E5E5E5"> catalyst comm for all</font>
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kinds<font color="#CCCCCC"> of ideas on how to protect your</font>
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<font color="#CCCCCC">information I'm</font><font color="#E5E5E5"> Aaron Titus</font>