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Hacking, Old-School

Jan 23, 2011, 03:05 (1 Talkback[s])
(Other stories by Joey Bernard)

"When you mention hacking in the general public, the image most people think of is a nerdy guy breaking into a computer system from his bedroom. This month, I take a look at some of the tools available to do exactly that. Of course, this is for information purposes only, so please don't do anything nasty. Remember, with great power comes great responsibility. Most people have heard of tools like Nmap or Nessus, but here I look at some other available tools for playing with networks.

"The granddaddy of network utilities is tcpdump. This utility simply listens to all network traffic going by and records the packets for later analysis. If you have more than one network interface, you can select which one to listen to with the option -i interface. By default, tcpdump puts your network card into promiscuous mode, so it can record all packets that exist on the network cable. If you want to limit the packets recorded simply to those destined for your machine, use the -p option to turn off promiscuous mode. Lots of options are available to tcpdump, so check out the man page for more details."

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