Mick Bauer is a Technology Counselor (information Systems security consultant and engineer) for Upstream Solutions, based in Minneapolis. His areas of expertise include firewall architecture and integration, security policy, network application security, and Unix and NT system security. Mick is the author of Linux Journal's popular "Paranoid Penguin" security columns, and of the upcoming book "Building Secure Servers With Linux" (O'Reilly and Associates, October 2002).