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It 282 Week 7

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A LAN networks job is to link computers together through a central device. That central device is the router, it is what transfers data to and from computers with an Ethernet cable or wirelessly as long as you are connected to the network. When you connect to the internet you are actually connecting to millions of networks that are connect through a multitude of ways: telephone lines, cable, and even fiber optic lines. A LAN and the Internet are the same only in the way that they both need a router to, well, route traffic. You actually can incorporate the Internet access into a LAN. The modem must be connected to the router and then that will provide a gateway between the Internet and the network connection. A firewall is very important when you use a gateway that will keep unwanted traffic from the public being able to access the LAN. It will only allow your data to go through that has a specific request from the other computers on the LAN. When you use a LAN with Internet access it can cause security risk. Hacker can always find a way around an older firewall, so keep them up to date, and users on the LAN may download files that have malicious files that are attached to files that you did not even know could infect your computer. When one computer on a LAN becomes infected, the infection can easily move throughout the entire LAN and infect all of the other computers in the network. I know this may seem confusing but a LAN and the Internet are used together, they are not the same thing, because a LAN does not need the Internet to function but it can be used to move files easily to and from all of the other computers in the network. You can even use and share printers, fax machines, and any other hardware that can be shared.

Step 1: Call your local Internet Service Provider (ISP) and pay for a monthly service and they will send out a modem. The modem can be DSL or

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