Lynis is an auditing and hardening tool for Unix derivatives like Linux/BSD/Solaris. It scans systems to detect software and security issues. Besides security-related information, it will also scan for general system information, installed packages, and possible configuration mistakes. The software is aimed at assisting automated auditing, software patch management, and vulnerability and malware scanning of Unix-based systems.
Kernel Security Checker is a useful tool to locate attackers residing within a system by employing a direct analysis of the kernel through /dev/kmem and bypassing the hiding techniques of the intruder (kernel static recompilation or use of LKMs). It can find the modified syscalls from userspace, detect the promiscuous interfaces, and find the modifications applied to a protocol.
The goal of Escape-K is to provide an all-in-one platform for IT service management. This means that using a single application (the Escape-K client console), users are able to manage any sized computer organization, from workstation and printers to servers, databases, or network devices. Escape-K follows the main guidelines recommended by ITIL. Therefore, the core of the application is the composed of the CMDB. Depending of the chosen perspective, Escape-K users can deal with incidents and problem resolution as well as server or database administration.
net-status-monitor is a simple console script to test whether Internet connectivity is working. If it is, the script tells you the external IP address (in case your dynamic DNS provider is down). If not, it tries to find the point where the connectivity fails. The output is quite simple, so you can put it on your grandmother's PC. "Just tell me what the read line says" should give you enough information.