Influxdb

Ads blocking with OpenBSD unbound(8)

       1838 words, 9 minutes

The Internet is full of Ads and Trackers. And a way to avoid those is to simply not reach the stinky servers. This can be partially done using a local DNS resolver. This article is a reboot of both the 2019 Blocking Ads using unbound on OpenBSD and Storing unbound logs into InfluxDB posts ; hopefully improved.

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Status Page using Collectd, InfluxDB and Grafana

       981 words, 5 minutes

Collectd is already grabbing statistics from my services and drop them into InfluxDB so that I can get pretty graphes with Grafana. One thing I miss is a single page that shows the overall status for all those systems ; somehow also known as Status Page.

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Monitoring the Linky electricity meter

       582 words, 3 minutes

Linky is a “smart electricity meter” from the French power grid operator Enedis. One nice thing about this device is that it automatically reports your electricty consumption. By polling the operator’s portal, one can fetch back its own data. And if the data are then stored in InfluxDB, one can keep a pretty look on its power consumption.

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Storing unbound(8) logs into InfluxDB

       828 words, 4 minutes

I’m using unbound(8) on OpenBSD to block Ads . In the logs, I can see which domains were queried and blocked ; but I like to have a more graphical overview of whats happening over weeks. So I stole a few ideas from the Pi-Hole Web Interface , routed the logs to InfluxDB via syslog-ng and rendered statistics using Grafana.

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Cleaning InfluxDB measurements with mixed Tags and Fields

       463 words, 3 minutes

While experimenting with Telegraf, SNMP and InfluxDB, I ended up filling some measurements with tags and fields that have the same name. InfluxDB works nicely with such user-case by adding numbers (in format “_###”) to those keys. But that’s a mess to deal with when using Grafana. And a mess in general.

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