"Afick is a fast and portable utility which acts as an aid in
intrusion detection as well as helping to monitor the general
integrity of your system. Afick was written by Eric Gerbier and is
distributed under the GNU General Public License. It is available
for a number of platforms in both binary and source formats.
"I first found out about Afick a few months ago when I was
searching for a utility which would monitor file changes on a given
system, and then report back to me on what had changed and when.
There are a number of utilities available which have similar
functionality such as Tripwire and AIDE, and, while I am sure they
all have their strengths and weaknesses, I find Afick to be best
suited for my preferences, your mileage may vary..."