Misspelled title.

"When a person uses the postal service, the user's actions are no longer in his or her physical home; in fact he or she is not truly acting in private space at all. The user is generally accessing the postal service with a zip code and mailbox owned by the United States Postal Service. All materials in transit, whether they are letters or packages, are physically temporarely stored on facilities owned by the USPS. When we send a letter or a postcard from the comfort of our own homes to a friend across town the message travels from our home to facilities owned by a third party, the USPS, before being delivered to the intended recipient. Thus, "private" information is actually being held by third-parties."

RFC 1178: Choosing a Name for Your Computer, http://www.ietf.org/rfc/rfc1178.txt
RFC 2100: The Naming of Hosts, http://tools.ietf.org/html/rfc2100

It seems what he needs is "Fast System VerSioning" (FSVS) http://fsvs.tigris.org/

It is a complete backup/restore/versioning tool for all files in a directory tree or whole filesystems, with a subversion repository as the backend. You may think of it as some kind of tar or rsync with versioned storage.

In which ways is FSVS better than subversion?
* FSVS keeps the modification timestamp, the owner, group and access mode of your files in the repository, and restores them on update/export.
* svn is restricted to files, directories, and symlinks; FSVS does device nodes too.
* The svn client needs the .svn-directories, with the full-text of your text-base in them; that means 4 times the inodes, and more than 2 times the space needed in your filesystem.