Professionally, I'm an accidental Infrastructure Security Architect. I also teach graduate classes in System Administration and Advanced Programming in the UNIX Environment at Stevens Institute of Technology. The video lectures for these classes are available online free to anybody:

• CS615 System Administration
• CS631 Advanced Programming in the UNIX Environment

I still don't obfuscate my email address, have a public PGP key (that I even have the matching private key for!), and ride a very long skateboard through New York City, frequently wondering what things will be like when I grow up.

Latest blog entry:

• Whose CIDR is it anyway? (2024-06-12)

Other stuff:

• DNS Zone Stats
• xpipe(1) and repeat(1)
• What's that cert?
• Compare public DNS resolver results
• gip -- a tool to get an IP address or CIDR in a given location
• /dev/domains
• UTC or GTFO stickers, etc.
• My (unfinished) book on System Administration