Raven's System Stats allows users to collect detailed information about an operating system, including kernel architecture, distro, operating system, kernel version, glibc version, name of login shell, number of CPUs, CPU description, hyperthreading support, CPU MHz, CPU cache, bogomips, used and total RAM, used and total swap, filesystem size and type, uptime, unique users logged in, total login shells, currently running processes, total processes since bootup, load average, X resolution, and the number of X servers running.
SockMi is a mechanism for the migration of a TCP/IP connection between two Linux systems. Only the migrating peer of the connection needs to reside on a Linux system. The migration is completely transparent for the other peer, which can be a system running any operating system. SockMi requires neither changes to existing Linux kernel data structures nor new system calls. SockMi is based on the cooperation of a kernel module and a daemon.
EPOR is an extensible package organiser for Unix-like systems. It's written to trace filesystem changes (something being installed) and save this information in a simple text database (this, as any other provided feature, is customisable via the embedded Guile interpreter). Database entries contain information supplied by the command line (package name, version, etc.) and traced by filesystem changes (new directories, files, etc.). This is achieved using the "LD_PRELOAD method''.
OpenVPS is a set of software built on top of the Linux VServer aimed specifically at Web Hosting. It is not another set of kernel patches, but a set of scripts to create virtual servers, collect resource utilization information, and provide an interface to the customer as well as the administrator.
Kernel Analyzer monitors system activity by recording information about task preemptions and interruptions. The data generated is intended for real-time developers and is useful for analyzing driver timing issues and scheduling efficiency. It can also help by giving an overview of a system.