This Tech Briefing will be a special two-hour class for ITSS system administrators, database administrators, application developers, and power users. After a brief review of firewalls and VPNs, we'll talk very specifically about Stanford's firewall deployment for administrative systems. The core of the class will be an interactive exercise where teams will build firewall rules, test, and troubleshoot. Prizes will be given to the best team based on security, manageability, funtionality, and speed. The entire firewall team will be participating so it's also an opportunity to ask questions. RSVP to Sunia.Yang@Stanford.edu.