This document provides summaries of various tools that can be used for securing and testing networks. It begins by stating there is no single tool that can meet all needs and the right tool must be selected for the job. Several networking scanning, vulnerability assessment, password recovery, and digital forensic tools are then summarized, including Nmap, Nessus, Cain and Abel, Wireshark, Metasploit, and BackTrack. Methods for securing the network perimeter, assessing vulnerabilities, recovering passwords, and performing other tasks are also outlined. The document provides links to download or get more information about many of the summarized tools.