> tripwire!
>
> Seriously... Linux/unix doesn't have any 'registry'.. Everything is in
> files.. Any intrusion detection system will report on file changes.. Or
> just write your own little utility. Do an ftw (file tree walk) and stat
> each file/directory. Save the data, and do it again.. then compare.

I keep thinking about a tool that could do this. dump, tar, and rsync can
detect changes in a filesystem so they can do incremental backups.

A few days ago, I was manually keeping two file systems in sync by using
rsync every few hours. It was enlightening to see what files had changed
the course for 24 hours on a busy machine.

I think I did something similar to rysnc -arPv <original> <new file system>
(arPv is archive, recursive, resume, verbose)

Here is an idea:

If you have the disk space, rsync the file system that you want to monitor
to another disk (or mountpoint). Then, make your changes, and run

rsync -arPvn <modified file system> <original file system>

and you can see what files changed. The -n parameter will just do a dry
run, no files will be synced. You'll be able to see what files changed.

Perhaps some people with more rsync foo than I can add on to my idea?

Mark

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