Security (again!). Security is a recurring theme here and in Notes from the Field, and it's time for another installment. One excellent resource for IT security is Ben Rothke's web page. Ben is a columnist for Information Security Magazine, among other things, and his home page contains a wealth of information. The real gems are:

• Preparation material for the CISSP exam
• Public Key Infrastructure tutorial
• PGP tutorial
• Auditing Check Point Firewall presentation (see my 21 April Amazon review of Essential Checkpoint Firewall-1: An Installation, Configuration, and Troubleshooting Guide for an excellent book on Firewall-1)
• Keeping Your Corporate Site Secure