Opus One staff have prepared literally dozens of presentations on a wide variety of topics. Some of these are available via the Internet. The older presentations have been converted into PDF format; you will have to have a PDF viewer such as Adobe Acrobat to read them.

Newer ones have been converted using Microsoft's Powerpoint Internet Assistant. This gives a more Web-readable presentation, although one a little harder to print out and take with you.

If you don't have Powerpoint, Microsoft offers free copies of the Powerpoint viewer. We have cached them on our FTP server as well, both in Windows and Macintosh format.

• TCP/IP addressing and subnetting (an excerpt from our Technical Internals of TCP/IP class). Written by Joel Snyder. (or get just the chart)

• TCP/IP Programming part 1 (55 pages). Note that this is an extremely long presentation; be prepared for a lengthy download. This is an earlier version of the presentation used in our Programming TCP/IP class. You may also want to download part 2 (56 pages), part 3 (35 pages), part 4 (30 pages), and part 5 (48 pages).

• DNS Technology and Terminology Overview (95 pages). Note that this is an extremely long presentation; be prepared for a lengthy download. This is an earlier version of the presentation used in our DNS Configuration class. Written by Jan Trumbo. A page-by-page version of this presentation, modified in November 1998 for the SANUG meeting, is also available here. (N.B., these are not exactly the same, but do have very similar content.)

• DNS Hints and Kinks for the Primary Domain Administrator. We also call this "DNS 301." Written by Jan Trumbo.

• Electronic Mail Protocols including SMTP, POP, IMAP, and MIME.

• Internet Access Options part 1. This is part 1 of a two-part presentation Joel Snyder gave with Lee Zeltzer of ISD.

• Life Outside the Firewall. This is a presentation on some of the issues that systems which are not protected by firewalls must address and some of the security problems they have. It's a little dated, but still very good. Written by Joel Snyder.

• Picking Your Web Designer is a presentation based on one of Joel Snyder's Internet World columns on finding the right WWW designer to handle your web site.

• Internet Connection Options in Tucson is a presentation Joel Snyder of Opus One gave to the Center for Software Excellence's breakfast. It's a discussion of the relative merits (and lack of thereunto) of the different modem and digital access technologies which are ready for deployment today. If you have a good sense of humor, you may want to read the anonymous report someone sent us after the meeting was over. Warning! Not for those easily offended!

• Web Design is one of a series of web design presentations from the point of view of a human interface designer, and not a WWW designer. The point of this presentation is to ground WWW designers in good human interface design and get them out of the crazy one-upmanship that's going on today---which doesn't benefit the end user. Written by Joel Snyder.

• Megatrends in IT is a presentation written by Opus One staff in 1998. It identifies trends for information technology, including the web and Internet and the emergence of information as a dominant economic factor. Although the presentation is several years old by now, it continues to be accurate. The only difference is that the curves are slightly steeper than we originally predicted.

• Mass Email is a presentation which looks at the problem of unsolicited commercial email and some of the potential solutions. Since handling "spam" is one of Opus One's specialties as a consulting organization, this is a good overview to the issues and alternatives.

• IT Roadmap 2007 presentation on A Whirlwind Tour Through the Basics of Network Access Control (NAC)

• Smart Defenses 2007 Seminar presentations, including Making IDS Useful, All About Security Information Managers, Unified Threat Management, and Improving Your Network Defense.

• Network Defenses 2007 Seminar presentations, including Five Principles for Integrated Network Security, Hard Questions on NAC, and Building a Secure Wireless LAN, 2007 Style.

• NAC Framework Testing Overview presentation from Interop Las Vegas 2007, a summary of lessons learned from testing NAC frameworks early 2007. This is based on the longer article in Network World.

• Security 2008 seminars (mostly for TechTarget seminars) presentations, including A whirlwind tour through the basics of NAC, Anti-Spam Engine Myths (Testing Trumps PR), Mobility Security (Five Strategies to Get you Started on Secure Mobility), and Five Myths of Threat Mitigation.