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How-To Tutorials

This area includes How-To Tutorials on topics related to creating web sites and adminstering the computers and networks that web sites run on. It includes:

  • Good and Bad Passwords An in Depth Analysis of Good, Bad, Strong and Weak Passwords, Password Cracking Techniques and How-To Reduce Password Vulnerabilities
  • Ten Practical Security Steps for Resource Limited IT Staffs or how-to achieve reasonable security with limited effort, covers security basics and essentials.
  • Homegrown Intrusion Detection: Simple scripts automate notification of file changes and unrecognized processes.
  • Beginner's Guide to Secure Shell (SSH) covers the basics of setting up OpenBSD, Linux and Windows ssh clients and servers.
  • Hardening OpenBSD: Making the most secure general purpose operating system more secure.
  • Dual Boot Open Source Systems is a comprehensive guide to booting two or more FreeBSD, Linux, and or OpenBSD systems from the same hard disk.
  • Cascading Style Sheets (CSS): Standardize the appearance of common elements throughout your web site.
  • Computer Time Synchronization: When I wrote this in 2000 and 2001, none of my computers had time synchronization software included with the OS install. In 2014 nearly all new computers come with time synchronization software installed; it's normally on by default. As a result, even though some pages may have information that remains relevant, the section as a whole is obsolete.
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Copyright © 2000 - 2014 by George Shaffer. This material may be distributed only subject to the terms and conditions set forth in (or These terms are subject to change. Distribution is subject to the current terms, or at the choice of the distributor, those in an earlier, digitally signed electronic copy of (or cgi-bin/ from the time of the distribution. Distribution of substantively modified versions of GeodSoft content is prohibited without the explicit written permission of George Shaffer. Distribution of the work or derivatives of the work, in whole or in part, for commercial purposes is prohibited unless prior written permission is obtained from George Shaffer. Distribution in accordance with these terms, for unrestricted and uncompensated public access, non profit, or internal company use is allowed.

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