I am a retired IT person. I worked in technology as a communications technician, System Administrator and Database Administrator for over 32 years before retiring in 2014.
As such I had/have a home network that was a little bit more sophisticated than the average so I went searching for a tool that could monitor it for me. I found NEMS & Robbie!
I first started using NEMS with version 1.1 and I am now using 1.4 (currently running on a Raspberry Pi 3 B+).
What do I monitor?
I monitor my 22 (or thereabouts) devices. These include:
- Router and internet gateway (1)
- Smart Ether Switches (2). A 16 Port 1Gb switch and an 8 port PoE 1Gb switch for PoE devices.
- my NAS & the UPS connected to it using NUT.
- Central WAP for mobile phones, tablets etc
- Security Cameras (mostly PoE)
- My Solar Energy System Gateway and Energy Monitoring System (uploads to PVOutput.org)
- Weather Station (connected to WeatherUnderground)
For example with my NAS is SNMP enabled & with NEMS check_snmp I can check:
- The NAS is online, what it's input voltage is if it's on mains and what the output voltage is if on battery.
If the UPS is on battery, how much autonomy time in seconds (with good batteries should be about 3600 seconds). The UPS also powers other critical infrastructure such as routers, switches etc.
My NAS uses NUT & becomes a NUTserver. This controls automatic shutdown of all NUT clients and the NAS in the event of mains failure.
- What HDD drive temperatures are
- What the system temperature is
Attachments give a simple view.