Once someone has your ip they can do a number of

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which ones won’t be worth your time and effort, just by what you can see from the outside.” Once someone has your IP, they can do a number of nefarious computer activities with the right training. After the hacker has done a ping sweep, their next move would be to do a port scan on the chosen address; this will then give them information on what ports are open for use. The blog by Chad gives another great example of Port Scanning in real life:” Imagine that you are that burglar again. Now that you have identified a house to rob, you are going to want to try and find a way in. So naturally you are going to walk around the house and see if there are any possible entrances that may have been left open. You may check the doors, windows, possible access points into the basement, or maybe even an opening on the roof somewhere. This is what a port scan does; now that a malicious user has a target, they scan it for any type of possible entrance.” Ping Sweeps and Port Scans are equally dangerous and are attacks against ones network. They
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should not be ignored and you should take preventive measures if you care about your networks security. Ping Sweeps and Port Scans are extremely dangerous but there are a few things you can do to minimize the threat. For Ping Sweeps, you can do it right on your PC by blocking the ICMP type “echo.” Blocking the “echo” feature will then prevent any outsiders find you. As far as blocking port scans, a firewall will be the way to go to prevent unwanted scans. Another way is to run certain software that finds open ports, which you can then close if you think it would lead to important information. Although dangerous, there are plenty of ways to go about blocking and preventing ping sweeps and port scans. With proper knowledge and some equipment, you won’t have to worry about your networks security and important information. Sources 1.
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  • Winter '12
  • Unknown
  • IP address, Port scanner, port scans, Chad L. Ries

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