From the Sair Linux and GNU certification team—indispensable study guides for becoming a Linux Certified Administrator (LCA)

As the popularity of Linux and GNU enterprise solutions rises rapidly worldwide, IT professionals and network developers in corporations and government are increasingly expected to become Linux certified. This series of study guides from the company that developed the Linux and GNU Certification Program covers the complete knowledge base necessary to pass Level I of the certification exam, including networking, system administration, and security (a fourth volume on installation and configuration is now available). Each study guide covers the knowledge matrix that includes theory of operation, base system, shells and commands, system services, troubleshooting and security, as well as lab exercises and sample questions from the LCA exam.

This guide provides professionals with proven techniques for protecting their organizations’ networks from intruders, while allowing authorized users access to the Internet and other outside resources.