Rating: 

Strangely enough some chapters go pretty deep while others really stop after no more than what feels like an introduction. Good idea : first check how deep the topic is covered by going through it quickly before you in ernest sit down and start reading it. You may find if you start reading a chapter without having an idea what is in it that the chapters stops at the very moment you get thirsty for more ...

Could be good to people that have no idea what System Administration is all about but to System Administrators this book is only very partially useful and there more than likely are better books available.