Linux: Powerful Server Administration

Really nice details, you should have a basic. Understand at most for Linux. Either have read most of a Linux book or just be at a beginner to intermediate user. The 3 disros have have alot of pages covering the material which is a good thing. Ubuntu is 425 pages, in itself is enough to buy the book alone with branching off to managing other things for better administration opportunities I'd say its a buy. CentOS is 300 pages and RHEL is at 224. So think about it, CentOS Is RHEL based so your getting 525 pages of Red Hat based server info. Is it worth the $100?If you will actually study and have a goal in mind to retain, , yes..