Secure Back Door (SBD) is a tool that provides ultra-secure and minimal access to a computer, which allows you to run a single command based on a one time key. It is good if you don't want to have an SSH server running all the time, and only want to start it when needed. Because it is written in only a few lines of code, it is hoped that it will be less susceptible to security exploits than a program like SSH.
Systeminfo is a shell script used to generate system information on RPM packages available, the system routing table, disk information, file system information, system general information, network interface information, kernel tunable parameters, system resource limitation for the current user, memory information, modules available in the Linux kernel, processor information, RAM available, services currently running, running process status, system uptime, currently logged in users, and virtual memory statistics. Report generation can take place in text or HTML format.
GLPI (Gestion Libre de Parc Informatique) is an information resource manager with an administration interface. You can use it to build a database with an inventory for your company (computers, software, printers, etc.). It has functions to make the daily life of the administrators easier, including a job/request tracking system with mail notification and methods to build a database with basic information about your network topology. It provides a precise inventory of all the technical resources (all their characteristics are stored in a database) and management and history of the maintenance actions and the bound procedures. It is dynamic and is directly connected to the users, who can post requests to the technicians.
multihomed is a script that can detect when your primary Internet uplink goes down and switch to a backup uplink. It's smarter than many similar scripts: it continuously pings several hosts around the Internet using both uplinks, and elects the best one as primary. You can define the priority with which uplinks are tried. This can be very useful if you have a per-traffic contract on one of your uplinks and a flat-traffic contract on another one: you can configure multihomed to use the per-traffic uplink only if the other one is not working. It runs as a daemon, and you can define the interval between consecutive checks. It can detect failures in your ISP's uplinks too; by checking multiple remote hosts around the Internet, you can tell if your ISP is fully working or not. This is much more reliable than simply pinging a single server or (worse) your default router. It is very flexible: you can easily customize the commands to execute whenever one of the links goes down.
GNU Hosting Helper is a Web-based Web hosting management system that provides an administration system, a client interface system, an online signup system, integration with OpenSRS for real time domain registrations, and integration with authorize.net for real time credit card transactions.