-- One of the first Linux security books to cover Bastille, a program which tightens system security and can even lock down the entire system in cases where the system is seriously compromised.

-- New chapter on network sniffers and port scanners used to detect intruders.

-- Updated for Redhat 7.2.

As more companies are moving to Linux for mission-critical applications, security becomes a major issue. This guide explains the pros and cons of the most the valuable open source security tools and is complete with implementation details. It gives detailed instructions on the implementation, configuration, and use of publicly available tools and features of Linux as they relate to Linux security. Essential background information is provided in the book's introductory chapters. Administrators will learn to: Prepare Linux systems for a production environment; Identify vulnerabilities, and planning for security administration; Configure Linux-based firewalls, authentication, and encryption; Secure filesystems, email, web servers, and other key applications; Protect mixed Linux/Unix and Windows environments. New to this Edition: Updated for Redhat 7.2; One of the first Linux security books to cover Bastille, a hardening program which tightens system security and can even lock down the entire system in cases where the system is seriously compromised; New chapter on network sniffers and port scanners used to detect intruders; Will Cover Open SSH - the new open source version of a popular suite of connectivity tools which allow you to login into remote computers and execute commands on these computers. Open SSH contains encryption capabilities that encrypts all traffic including passwords.