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Network Flow Analysis by Michael W. Lucas

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The Sensor: softflowd

Again, an Internet search will reveal many different software flow sensors, but I recommend softflowd, from http://www.mindrot.org/softflowd.html. Go there to identify the current version; if you can find a current package for your operating system, use it. If you cannot find a package, download the source code, and install the program by hand.

Check the softflowd README file for instructions on how to build. Much like flow-tools, softflowd has a configure script. I prefer to install my add-on software in a different directory than the main system so I can easily keep it separate. Here I install softflowd under /usr/local/softflowd:

# configure --prefix=/usr/local/softflowd
# gmake
# gmake install

This installs two programs ...

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