Jan 28 2018

Dell Vostro 270 Inspiron 660 pinout

This is the pinout for Dell motherboards found on Vostro 270 / Inspiron 660 motherboards (on possibly others).

I found the pins for : power switch, hdd LED, power LED that need to be connected to the case.

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Apr 28 2017

Grafana not showing mount points containing dot in name in Disk Space plugin

I use Grafana and Prometheus to monitor my home server running on Ubuntu 16.04 x32 (Atom N270 CPU). I noticed that my external USB HDD is shown in Disk Space dashboard, but only in Mountpoint Usage graph. I only see the graph with the percentage.

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Apr 23 2017

Exclude from Grafana ISPConfig mounted logs in Disk Space dashboard

I use Grafana to monitor a few servers. Because ISPConfig mounts the logs folders to other locations, the disk stats provided by the Prometheus Node Exporter include info that is not useful (at least for me).

This is how the Disk Space Graph is shown :

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Apr 22 2017

TP Link HS110 smartplug linux monitoring with Grafana

The TP-Link HS110 smartplug has a mobile app that is not very useful. Digging through the internet i found a few scripts that can read data from it. I used a script with Grafana and Prometheus and made a nice dashboard with the collected data.

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Jan 04 2017

Solve nagios plugin check_iftraffic64.pl not reporting data

I’ve decided to use this plugin, check_iftraffic64.pl for network card monitoring (for Linux)
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Aug 19 2016

Solve ssh_exchange_identification connection closed by remote host

I’ve encountered this error message on a CentOS 7 system, the next day after i’ve enrolled it in freeIPA. Until then, SSH from it to other hosts worked fine.
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Mar 21 2016

Fix munin ip_ plugin showing network traffic from wrong IP

I’ve installed munin on a Ubuntu Server 12.04 yesterday. When checking the repots I’ve noticed 3 ip’s graphed, like the image below.

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