For a limited time, the Practical Linux Security Cookbook by Packt is available for free. This book provides code-intensive discussions with detailed recipes that help you to create and administer a secure Linux system locally as well as on a network.
Whether you are new to Linux administration or experienced, this book will provide you with the skills to make systems more secure.
What You Will Learn:
Learn about various vulnerabilities and exploits in relation to Linux systems
Configure and build a secure kernel and test it
Learn about file permissions and security and how to securely modify files
Explore various ways to authenticate local users while monitoring their activities.
Authenticate users remotely and securely copy files on remote systems
Review various network security methods including firewalls using iptables and TCP Wrapper
Explore various security tools including Port Sentry, Squid Proxy, Shorewall, and many more
Understand Bash vulnerability/security and patch management