Top critical review
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Maybe good for the cert but it omits important concepts
on 2 January 2008
Generally, it is a good review of what you need to know, in order to pass the RHCT/RHCE exams. However, from an editor's point of view I am not impressed considering a number of typos of minor importance (such as for example the link for the Distributed Intrusion Detection System on page 274) to serious omissions and mistakes.
One of the most serious omissions IMHO lies in the discussion of quota controls (pages 290-301). It goes all the way to set the quotas and mentions the function of quotacheck, but where is the 'quotaon' command to enforce the quotas and allow the quota protection? Both the text of the 'Setting Up and Managing Disk Quotas' section as well as exercise 6-3 do not explain that quotaon needs to be issued. The main text mentions that the command is run by /etc/rc.sysinit, but if someone makes changes without rebooting the system and follows Exercise 6-3, then he could easily miss the importance.
I am also unclear about the accuracy of the IPv6 Addressing section (pages 39 and 40). I appreciate that this is not a networking primer book, but they should discuss also 'anycast' addresses (not only Unicast and Multicast) and clear/correct the confusion between Link Local and 'Site Local' address portions. I am not sure how this would impact the candidate (probably it won't), but for the purposes of accuracy things should be written in a better way.
I would give the author thumbs up! Thumbs down to the editors and proof readers of the publishing company. They rushed the book to the market. Everybody does that, but they have really left too many bits that need fixing.