Contents

• Introduction
  • Insecure out of the box
  • Security through obscurity doesn't work
  • Secure your computer before connecting it to the Internet
  • Install the latest version of the OS
  • Apply operating system patches
  
  
• Practical changes to improve security
  • Internet services
  • The inetd daemon
  • Telnet and FTP
  • Anonymous FTP
  • Secure Shell
  • Packet filtering
  • Intrusion detection
  • Handy checklists
  
  
• Resources on the Internet
  • Security advisory and software bulletin sites
  • *NIX distribution security links
  • Security tools

A Somewhat Brief *NIX Security Guide

Kristien Clayton

This is the initial revision of an evolving document. Please e-mail comments regarding improvement to admin@phys.unsw.edu.au.