Thomas A. Limoncelli is an internationally recognized author speaker and system administrator with more than twenty years of experience at companies like Google Bell Labs and StackExchange. com.   Strata R. Chalup has more than twenty-five years of experience in Silicon Valley focusing on IT strategy best-practices and scalable infrastructures at firms that include Apple Sun Cisco McAfee and Palm.   Christina J. Hogan has more than twenty years of experience in system administration and network engineering from Silicon Valley to Italy and Switzerland. She has a master's degree in computer science a doctorate in aeronautical engineering and has been part of a Formula 1 racing team. . Language: English