Linux Network Administrator's Guide

Linux Security Cookbook

Linux Cookbook

Apache Security

SELinux: NSA's Open Source Security Enhanced Linux

Apache

Linux Server Security

Format: Paperback
Author: Michael D Bauer
ReleaseDate: 18 January, 2005
Publisher: O'Reilly Media
Rating:

Disappointed about the installation instructions.

Well first of all this author loves to use the binary packages (RPMs, etc. The big reason why I purchased this book was because it claimed it was great about security and it said it would show how to setup these services the correct way.). And anyone that is a major security buff knows that the RPMs are the last things to get updated when a flaw is found out.
Secondly that's all the user shows for the installation of most of the software is how to do it with a binary distribution. So unless you are using Suse, Redhat, Fedora it is quite useless. This book should indicate that it made for those distributions and it is not general "Linux".

Also his views on running some of the software is really off the wall. But that is just a personal preference I guess.

Overall if he would have used the regular ". /configure ---comands", "make", "make install" this book would have been much better and it would have been able to be used for those that don't want to be stuck in "rpm hell".

Not Focused
This book is ok, but not great. I read every column of paranoid penguin and they are quite good. They (I mean they because several chapters are not by Mike) try to cover a huge amount of information and make the mistake of being both too broad in some areas and too specific in others. Overall, there wasn't a cohesive glue to bring the chapters together into a single vision.

For instance, for a book that introduces FTP servers, web servers, mail (imap/smtp), dns - they are like separate entities. They do not complete the picture by showing a complete network diagram with IDS / VPN, -- showing an example of all of their advice coming together in a working solution. And Kerberos isn't even mentioned.

They were extremely specific in some areas like talking about rpm example/debian/ make options and specific . conf options ad nauseum - which detracted from the whole picture. Is someone securing bind 4 really reading this book? Also, maybe a mention of apt-get - - but don't tell me how to install each package on every architecture - it just inflates the word count.

I don't think this book was focused enough in the 'big picture' of trying to piece together all of the tiny pieces into a coherant whole, while at the same time it gets cought up in the minute details of certain packages making for a tough read.

Perhaps they could have included an actual example company or two showing possible layouts of ldap in action with:
login/mail/split-dns/firewalls/database$web.

Anyone for OpenBSD?.

For sys admins
Bauer
Second Edition January 2005
ISBN: 0-596-00670-5
544 pages, $44. Linux Server Security, Second Edition
By Michael D.95 US
(. . . )
This book goes along with the moving trend of the normal computer user, securing your data. Servers generally are targeted more often than the average home PC because most are made to be accessible from the outside world. This is where securing that server comes into play. This book covers the tools and techniques to securing your Bastion host.

First I'd like to start out and explain what Bastion host means as according this book so you can understand what this book covers more specifically. Bastion Host is defined as "A system that runs publicly accessible services but is usually not itself a firewall. Bastion hosts are what we put on DMZ (although they can be put anywhere). The term implies that a certain amount of system hardening has been done, but sadly, this is not always the case. "

After you understand what a Bastion host is defined as, you should understand that this book mainly covers these server daemons and the systems that run them. But some of the information applies to a Linux desktop system such as a per host iptables firewall, using secure shell, keeping up with your logs, and intrusion detection. Most of these things the average user doesn't care much about but sometimes being paranoid comes in handy.

Someone who would most likely use this book more than the average desktop user would probaly be a system administrator. Securing web, database, ftp, dns, and email servers is what majority of this book contains. Along with covering these server systems, there are guides to securing the Linux system that runs these daemons along with designing the networks around these types of hosts.

One of the sections I'm most fond of is Chapter 2: Designing Perimeter Networks. With this section you can really take a look at the design and layout of the different types of networks and figure out the portions that suit your needs for your own network. The diagrams shown in this chapter help explain what is going on with the traffic and allows you to see exactly what is going on and at what points the systems are protected.

At the end of the book there are 2 well commented iptables firewall scripted that allow you to get a feel for the netfilter iptables system if you're not familiar with it already. With some modification of these scripts you can easily bring them into a working environment depending on your situation, which sometimes these helps with some of the frustration with the iptables syntax. I personally prefer the PF system within OpenBSD for it's clean syntax and have grown away from iptables, but both are powerful firewall systems and should fit the needs of your network.

I'd definitely recommend this book to system admins or anyone who is paranoid about their security. Security is always something that people should be educated about.

Lloyd Randall
Pensacola Linux User's Group.