Installation instructions for arachNIDS Snort rules updater v0.3
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o Untar/unpack the distribution file in some temporary directory:
  tar zxvf arachnids_upd-version.tar.gz
  This will create a directory called arachnids_upd-version.

o Move this directory to some suitable location, for example /usr/local/:
  mv arachnids_upd-version /usr/local/

o Check out the file arachnids.ignore (in /usr/local/arachnids_upd-version/)
  IDS1, IDS2 and IDS3 are disabled by default, just as a demonstration.
  Remove/comment these numbers, or simply create an empty arachnids.ignore file.
  You can now grab the ruleset from the default URL by running:
  cd /usr/local/arachnids_upd-version
  ./arachnids_upd.pl -o vision.rules
  This will place the ruleset as "vision.rules" in the current directory, and since
  the file arachnids.ignore is empty, no filtering will occure.
  Note: The default URL is http://www.whitehats.com/ids/vision.rules.gz, which at the
  time of writing is the Snort 1.7-compatible ruleset.
  Check out http://www.whitehats.com/ids/ for more information about the rules exports.
  
o That's it!
  Now you can start figuring which rules you want to disable (if any at all!).
  Just add the IDS numbers of the rules you want to disable to arachnids_upd.ignore.

  See the README for more information.
  You may also run arachnids_upd.pl -h for more usage information and options.
