rConfig is a network device configuration management utility for network engineers to take frequent configuration snapshots of their network devices. It lets you choose which commands you want to run against your devices. Simply configure rConfig with the list of commands you wish to apply to a category of devices, and add devices to the category. Create a scheduled task, and rConfig will do the rest.
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.