Puschitz.com: Securing Linux Production Systems

“This HOWTO is intended for a technical audience, Linux system
administrators and security people in corporations and
organizations that have to use commercial Linux distributions in
production. The primary focus of this Linux Security guide is to
discuss basic security requirements that should be met by all
audited Linux production servers at a minimum. This document covers
system services like SSH which are usually needed and running on
most Linux production servers. But this article does not cover
Apache, Samba etc. since these services are usually not needed on
all systems. This article does not cover various security features
that require patching the kernel. In production environments, this
is not an option for most companies due to support issues. The
objective of this article is to cover the most basic security
requirements for audited Linux systems. This Linux Security
Cookbook has been tested on Red Hat Linux but should also be
applicable to most other Linux distributions like SUSE…”

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