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News from the 
Hacker War Front

War Tools: Scan, Sniff, Spoof and Hijack

(Excerpted from The Happy Hacker Book, Second and Third Editions)

    "Hello, I don't mean to be rude, but I noticed you were examining something, er... proprietary on our system. Would you mind explaining what you were doing?"

    Sigh. From time to time I get an email like that. Sometimes it is less polite than this. In this case, I had been examining an intranet server. For some reason it was directly accessible from the Internet instead of being on a private internal network. I'll bet you can't reach that box from the Internet any more:) I was just curious, not trying to break in!

    The one thing that defines a hacker is curiosity: a blinding, insatiable hunger for more, more, more information. If your objective is to fight those who attack your computers, your curiosity will be your greatest asset. This chapter covers some powerful war tools that can satisfy your curiosity in a legal and constructive way -- and shows how to use them to battle computer criminals.

    Sysadmins tell me that it is far harder to keep people out of your computer systems than it is to break in. In this chapter we will get a glimpse of this war between sysadmins and computer intruders, and learn something about the tools they both use.



In this chapter you will learn about:
    • IP address scanning
    • Port scanning
      •  a beginner's scanner
      •  a stealth scanner
    • How to give intruders a hard time
      •  Nuke Nabber (for casual users)
      •  Port Dumper (for anyone with a sense of humor)
      •  RotoRouter (drive the bad guys nuts)
      •  Sniffit
      •  TCPview
      •  TTY-Watcher (great fun for casual users, great tool for sysadmins)
    • Industrial strength tools
      •  Etherpeek
      •  IP-Watcher
      •  T-sight

More Wartools!--->>


For advanced
hacker studies,
read Carolyn's

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