[evilDagmar]

Absolutely. I have used the heck out of this on systems since I found out about rrsync.pl and read through the code to make sure it was using a solid approach.

With a quick keypair generation one can quickly deploy read-only (and probably write-only although I've never tried that) access to select parts of a filesystem and do selective near-line backups of important files into a "history" host of sorts, and even leverage rsync's ability to use hardlinks in place of files that have not changed since the last run so no space is needlessly wasted backing up 400 copies of the same thing.

It was wonderful that I didn't have to write such a wrapper myself.