Bill Ball is the best-selling author of a dozen books about Linux. Hoyt Duff is a former senior vice president and senior commercial loan officer for a bank. He has been using computers for nearly 30 years and uses the software on Intel-based PCs, Apple PowerMacs, and MIPS platforms. He is an active member of the Northern Virginia Linux Users Group (NOVALUG), teaches Linux courses at Stratford University in Falls Church, VA, and lives in the Shirlington area.”]
Source: https://www.amazon.co.uk/exec/obidos/ASIN/0672325888/helpnetsecuri-21