- System - Uptime for SNMP-standard-abiding hosts (Unix) and modified uptime for non-SNMP-standard-abiding hosts (Windows)
- SNMP XML
The “Unix” template will probably work for other non-Unix devices, since it adheres to the standard, but obviously your mileage may vary (hence the separate Windows template).
The Unix script here was not my original creation, but I cleaned it up and made it adhere to the same formatting as the rest of the pre-installed templates, and then I duplicated it to create the Windows version so they could be installed concurrently.
Just import the template XML files into Cacti. You're finished.