Puzzle of the Day
One well-known institution has a world-writable ftp subdirectory to
allow outsiders to deposit items there for internal users, who may
retrieve the items. The directory is periodically cleaned using a cron
job which changes the current working directory to that directory and
executes rm -rf *.
What are some problems with allowing outsiders to drop files off in an
Does the solution adopted (to use the rm command to clean out the
directory) overcome these problems?
You can also see this document as a
Binhex Framemaker version 5 document,
plain ASCII text document.
Send email to
Department of Computer Science
University of California at Davis
Davis, CA 95616-8562
Page last modified on 2/8/97