SnortALog v2.4.0 is a really nice Snort logfile reader/parser/perl script written by Jeremy Chartier. Thank you Jeremy! It’s an *incredible* piece of work! Get a copy from his website. I installed mine on OpenBSD-3.8-STABLE, but I also needed the p5-GD-Graph package from the ports tree.
$ cd /usr/ports/graphics/p5-GD-Graph
$ sudo make install
Then, I made the script to run SnortALog, and set it to run from root’s crontab.
Here’s a screenshot of the HTML output.