The BAD news


"There is no way to make a computer completely secure against unauthorized use (other than to lock it in a room and turn it off)"
UTnet Guide to UNIX System Security, Charles Spurgeon, 1990, University of Texas at Austin (UT NIC)


Since before 1993, port probes and suspicious packets are the reality of the Internet.
See "There Be Dragons, Steven M Bellovin, AT&T Bell Laboratories" http://www.deter.com/unix/papers/dragons_bellovin.pdf

SCO advises that this information is provided without warranty. Sites should ensure that actions and procedures taken from this presentation are verified and in accordance with security policies that are in place within their organization. 

Listing of an application program or tool within this document does not constitute endorsement by The SCO Group.