Title: Onyl scratches the surface...
Product review: While there are some decent tips and explanations in this book, it seems more like a advertisement for the authors firm: whenever things get interesting the chapter ends and the recommendation points to hiring a firm to take care of your system administrative needs. I wanted a book that explains every single setting in the firewall administration panel for instance, what I get here is an instruction on how to close and open ports, which was very obvious in the first place. But maybe I should have looked at the title a little closer, after all it is the little black book, not the big one.
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