I'm looking for a convenient way to track revisions made
in system files (e.g. /etc) of several machines by several sysadmins.
Also it would be nice, though not crucial, to be able to backtrack.

I'd like to have roughly the features of CVS.
I tried it but it seems inappropriate: too much problems with
binary files, symlinks, etc...

Any advice would be welcome.

Regards,
Thierry.