Problem Determination for Linux on System z

This IBM Redbooks publication addresses some of the common problems that customers have experienced on the Linux® on System z™ platform. This book provides a problem determination methodology and tools to help the reader diagnose the problem in an easy-to-read self-help manual.

We start with a discussion on how to approach problem solving in the Linux on System z environment and continue on to describe some of the problem determination tools commonly used for z/VM and Linux on system z. We continue with discussions on network problem determination, performance problem determination, and storage problems.

Additionally, we discuss the formation of eligible (or eligibility) lists.

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Hack Proofing Linux: A Guide to Open Source Security

Hack Proofing Linux: A Guide to Open Source Security is designed to help you deploy a Linux system on the Internet in a variety of security roles.This book provides practical instructions and pointers concerning the open source security tools that we use
every day.

First, we show you how to obtain the software; and then, how to use the Bastille application to “harden” your Linux operating system so that it can function securely as it fulfills a specific role of your choice (e.g., as a Web server, as an E-mail server, and so forth).You will also learn how to use your Linux system as an auditing tool to scan systems for vulnerabilities as well as create an Intrusion Detection System (IDS), which enables your Linux system to log and respond to suspicious activity. From virus protection to encrypting transmissions using Gnu Privacy Guard and FreeSWAN, you will be able to configure your system to secure local data as well as data that will be passed along the network. After reading this book, you will be able to identify open source and “for-fee” tools that can help you further secure your Linux system.
We have also included chapters concerning ways to sniff and troubleshoot network connections and how to implement strong authentication using One Time Passwords (OTP) and Kerberos.Tools such as Squid proxy server and Ipchains/Iptables will help you use your Linux system so that it can act as a firewall.With the tools on the accompanying CD as well as the advice and instructions given in this book, you will be able to deploy your Linux system in various roles with confidence.

Dual Boot with Fedora Core 6 and Windows XP

• Linux Administration Ebooks

Not everyone has a halfdozen computers in their office or home so that they can use a separate machine for each OS they want to work with. After all, Tom Watson of IBM once said that he couldn't imagine a need for more than five computers in the entire world.

As a result, setting up a single machine to host more than one operating system is a common requirement. Unfortunately, much of the reference material out there is old or inappropriate for a dual boot of Fedora's latest release and the tried andtrue Windows XP. Here's how to get the two to coexist nicely on the same computer with a minimum of fuss, and not too much Linux expertise either!

Mastering IPtables

• Linux Administration Ebooks

When Linux 2.4 was released, most people focused on what it would do to help the average Linux user and talked about the USB support, firewire, PCMCIA and DRI. While these are great additions to the kernel for the majority of people, often one of the major improvements over 2.2 was overlooked, even though it applies almost as much to Joe (and of course Jane) User as it does to a hardened network engineer. This is, of course, the inclusion of the netfilter system into the kernel, which provides packet filtering and other more advanced IP features. Along with netfilter comes iptables, which is the 2.4 equivalent of ipchains, and provides a user-space interface to the filtering, Network Address Translation (NAT) and mangling modules.

We are going to look at building 2.4 with support for netfilter and iptables, then building a production level router out of it. For those of you who just have one machine, and use it to connect to the Internet, then many of the same rules apply. The Internet is one giant, generally unrestricted, network which any reasonable person would have reservations about putting any sort of machine on, never mind their own Linux system.

Maximum Linux Security (2nd Edition) ebook

896 pages | Sams; 2nd edition (June 21, 2001) | ISBN: 0672321343 | PDF | 4 Mb

Maximum Linux Security: A Hacker's Guide to Protecting Your Linux Server and Workstation is designed for system administrators, managers, or Linux users who wish to protect their Linux servers and workstations from unauthorized intrusions and other external threats to their systems' integrity. Written by an experienced hacker--someone who knows which systems are vulnerable and how crackers get into them--this unique guide to Linux security identifies existing and potential security holes and faults, and then describes how to go about fixing them.

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