GroundWork Monitor Community Edition can give you insight into your computing infrastructure, allowing you to see the current and historical states of all your computers: servers, desktops, and laptops, all of your network devices, all of your services (like TCP/IP and Web services), and all of your applications (like mail servers and database apps). You can choose to be alerted when something goes awry via pager, SMS, email, or phone, and even set up automatic restarts or fall-overs.
phpSysInfo is a customizable PHP script that parses various files in /proc and displays them. It will display information about system facts like Uptime, CPU, Memory, SCSI, IDE, PCI, Ethernet, Floppy, and Video. It now has full internationalization support along with customizable templates.
Helpcore is an enterprise grade help and servicedesk application. It acts as a central information hub for everybody that is involved in the help and service desk process. Managers can see overview and decision making information, system administrators can see the status of their network and software, and users can see the current status of their problems.
Hotwire is an integrated inventory system and a rapid deployment tool targeted at servicing enterprise environments. The currently supported rapid deployment technologies are Kickstart (Red Hat Linux), AutoYaST (SuSE Linux), and Preseed (Debian GNU/Linux). The hotwire server itself can be installed on any Linux platform, however. Additionally, where client machines have the python-dmidecode, func, and certmaster packages installed, hotwire is able to provide an automated inventory maintenance and dynamic updates, via funcwire, a hotwire tool.
ShoStats is a reimplementation of phpSysInfo in Perl, useful for running from crontab and outputting the stats to a PHP include file, which can then be displayed on a hosting account. It is modular and configurable, including modules to support both Linux, OpenBSD, and NetBSD, an output module for PHP include files, and transfer modules for output to stdout (which can be redirected or piped) and uploading to an FTP server.
DSM (Dedicated Server Manager) Standard is a solution for hosting companies and organizations who need to combine a Web server, mail server, DNS server, or a fully featured Web hosting environment. DSM Standard offers four levels of interface access: root user, reseller, site-owner, and mailuser.