Attacks
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Denial of service - some servers or services stop running
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IP Spoofing - a hacker poses as a legitimate host using a fabricated IP address
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Session hijacking - stealing sessions
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Web spoofing - creating fake Web sites
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DNS hijacking - redirect DNS
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Password Sniffing - there are some tools like TCP Grab or Passfinder;
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CGI PHF (Packet Handling Function) can be used to extract password file (Crack)
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Holes in commercial and public domain software (sendmail, flexlm, yppasswd, ftpd, various servers)
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