Hi, It might be not that new, but just in case. In the Login magazine I won at last meeting¹s raffle there is an article about the subj. The course is opensourced. https://github.com/teachbsd/course Relies on a rather expensive book though, ³The Design and Implementation of the FreeBSD Operating System². -- Grigory Shamov WestGrid Site Lead / HPC Specialist University of Manitoba E2-588 EITC Building, (204) 474-9625