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22 lines
1.2 KiB
Plaintext
22 lines
1.2 KiB
Plaintext
Snort is a libpcap-based packet sniffer/logger which can be used as a
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lightweight network intrusion detection system. It features rules based logging
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and can perform content searching/matching in addition to being used to detect
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a variety of other attacks and probes, such as buffer overflows, stealth port
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scans, CGI attacks, SMB probes, and much more. Snort has a real-time alerting
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capability, with alerts being sent to syslog, a separate "alert" file, or even
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to a Windows computer via Samba.
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Packets are logged in their decoded form to directories which are generated
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based upon the IP address of the remote peer. This allows Snort to be used as
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a sort of "poor man's intrusion detection system" if you specify what traffic
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you want to record and what to let through.
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For instance, I use it to record traffic of interest to the six computers in
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my office at work while I'm away on travel or gone for the weekend. It's
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also nice for debugging network code since it shows you most of the Important
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Stuff(TM) about your packets (as I see it anyway). The code is pretty easy
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to modify to provide more complete packet decoding, so feel free to make
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suggestions.
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WWW: http://www.snort.org/
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