RedHat 5.X Security Book

[<seifried seifried org>]

I was looking around for a book specifically on Linux security a week or
two ago, and couldn't find any. I wanted something Linux specific as
opposed to say O'Reilly's yellow safe book. Couldn't find any (not even at
our local computer book store which has 50+ linux titles). So I looked
through RedHat's site, the manuals that came with 4.1, 5.0, and 5.1
nothing there. How odd I thought. So I started writing one, it is pretty
RedHat specific (as the subject of this email would imply). I would like
to get some feedback before I continue, a.k.a. is it worthwhile/useful?

http://www.seifried.org/redhat-security/

and in case the dns fall down go boom because we're moving them to a
newer, faster network connection (and the internic seems the be
responding somewhat slowly):

http://24.108.11.200/redhat-security/

Please don't flame me over details/etc, if you spot an error tell me and I
will fix it (I have been pretty careful though, it is supposed to be a
book on security =).

-seifried