Sorry, the book that you are looking for is not available right now.
We did a search for other books with a similar title, and found some results for you that may be helpful.
The Guide to the Secure Configuration of Red Hat Enterprise Linux 5 provides security configuration recommendations for the Red Hat Enterprises Linux (RHEL) 5 operating system for system administrators. Readers are assumed to possess basic system administration skills for Unix-like systems, as well as some familiarity with Red Hat's documentation and administration conventions.
Features include numerous screenshots, information written for a knowledgeable audience and detailed step-by-step instructions.
This book is available separately or bundled together with Introduction to Linux: A Hands-On Guide.
Published: 1st March 2012
Dimensions (cm): 1.3 x 21.6 x 1.3