The World Wide Web Security FAQ

Lincoln D. Stein <lstein@genome.wi.mit.edu>
Version 1.1.4, December 8, 1995
For Web servers running on Unix systems, here are some general security precautions to take:
  1. Limit the number of login accounts available on the machine. Delete inactive users.
  2. Make sure that people with login privileges choose good passwords. The Crack program will help you detect poorly-chosen passwords: