Month: November 2020

services

UPS NUT notes:

How to Monitor TWO UPSes with nut on a Raspberry Pi So, how do you differentiate between two of the same model UPSs on the same Raspberry PI running NUT? On a real computer, you could assign names to the ports. Maybe you have two different models and you could use model= or vendor= in […]

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hardware

How to Use a Real Hard Drive on a Raspberry Pi

With my recent success of setting up an m.2 drive on a Raspberry Pi, I thought I’d repurpose an old 3.5″ SATA drive. I jumped on amazon.com and found a GeeekPi SATA Expansion Board X825. You screw the hard drive to one side of it and mount the Raspberry Pi to the other. There’s a […]

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hardware services

How to Monitor UPS with Raspberry Pi

I’ve got a couple of LINUX servers and a Synology NAS on my CyberPower 1350 UPS. I’d like to monitor the battery level and OUTAGES. I can use the little pushbutton on the front to poke through the status OR I can install NUT and monitor my UPS with a cool webpage and much better […]

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basics hardware usb

How to Boot a Raspberry PI 4 from Thumb Drive

So, it seems things have gotten easier with the new round of Raspberries. The Raspberry Pi 4 is capable of booting directly from USB. No longer do you need to build an SD card and then transfer everything to a thumb drive, edit cryptic boot files, and cross your fingers that you create an unbooting […]

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hardware

How to Overclock a Raspberry Pi 4

Back in the day, you could use raspi-config to play with the clock speeds to overclock your Pi. Those were also the days of dire warnings of mysterious settings being written to OTP memory, marking your RPi as having been overclocked and therefore voiding its warranty. I’m yet to burn out a Raspberry or make […]

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Uncategorized

How to Install Zabbix Agent with Saltstack (or by hand)

If you’re using Zabbix to monitor your network, you’re going to need the Zabbix agent installed on each of your hosts. You could install the Zabbix-agent on each of your computers, which we’ll cover in detail, OR write a saltstack SLS file to install the Zabbix agent! So, first, let’s install the Zabbix agent by […]

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services

How to Install Zabbix on a Raspberry Pi

… or actually, a few Raspberry Pis! I’d like to install the Zabbix monitoring suite and have decided to split up the workload across 3 Raspberry Pi 3B’s. Just like in actual production, we’ll have a Zabbix front-end, a Zabbix Proxy polling server, and a Raspberry Pi database server. The Story So Far… IF you’re […]

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