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.
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.