Essential and practical vi – Part 1

Basically I wanted to make a post on vi buffers (editing multiple files at once) but discovered I couldn’t do it without more vi related stuff. Therefore a three part more elaborated post. Working in the Linux terminal every day, for me it is a no-brainer to use vi, more specifically vim. It’s installed by…

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MariaDB migration to MySQL

In my last post I’ve explained how and why we need MySQL instead of the default MariaDB from the Debian repo. In the post, I’ve stated that I’ve assumed that there isn’t already a MariaDB installation active. But what when there is? Then we have to migrate from MariaDB to MySQL. It looks simple, but…

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MySQL instead of MariaDB on Debian

MySQL instead of MariaDB… At my current employer, I’ve introduced Debian as the poison of choice for all managed servers, instead of the more exotic FreeBSD. I believe there’re nothing wrong with FreeBSD, on the contrary, but getting support or fully qualified personnel is way more difficult for a company our size. Anyway, what does…

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Blog post frequency

When I started this blog in February 2017 the plan was to post every 3 days and with a short break now and then, I’ve succeeded. But now, these last couple of months, I’ve found it hard to fill these pages with new content. So, what’s the deal? In 2017 I was a Linux rookie…

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Graphite and Graphite Web on Debian – Part 2

I really left you hanging last post, but for me getting Graphite running was a real challenge as well, because of a lot of, to me, unknown software and mechanisms. But you have to learn someday right? Well, I did and am now running some beautiful graphs alongside my Icinga configuration. This post we’re wrapping…

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Graphite and Graphite Web on Debian – Part 1

To complement our Icinga configuration, I’m installing Graphite and Graphite web on my Icinga master. Find out more here and of course here. Basically we’re going to visualise our Icinga checks. It’s not the easiest thing I’ve done so far, mainly because a few concepts were new to me. For instance: it works with a time-series database and…

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Telegram push notification for Icinga – Part 2

Today is part 2 of our mini series how to setup Telegram push notifications for the great monitoring tool Icinga. As said in the last post, I was still experimenting with a couple of things. Unfortunately that what I wanted, wasn’t possible (and very user specific anyway). On the plus side: setting it up is…

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Telegram push notification for Icinga – Part 1

Complete awesomeness with our Icinga master – client setup, third party plugins and endless possibilities. Today we’re adding something new: Telegram push notifications. This is the first part of a 2 part mini series, since Im’ still developing it a bit myself, trying to expand a little more and hoping I can share. Today te…

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Schedule downtime with Icinga

Stil not done talking about Icinga, today a quick tip how to schedule downtime with this fantastic monitoring package. First of all, there are the ad-hoc downtimes which you can easily perform from the web based interface we’ve set earlier. A little less transparent are scheduled downtimes of specific servers. For instance: when a restart…

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Icinga third party plugins – Part 2

Recently we’ve had the series how to setup your Icinga master and client configuration on Debian. Check the intro and links to the rest os the series here. Last post we’ve added to our configuration by adding a couple of third party plugins. This was as easy as getting the plugin in the right place and…

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Icinga third party plugins – Part 1

When you’ve got Icinga running, possibilities are almost endless. Check out the products page to get a sense of all its modules and integrations. Getting third party plugins to work with Icinga is not too hard for the most part: you can add compatible plugins, configure them and run them. I’ll cover 3 examples. There…

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Icinga 2 and Icinga Web 2 on Debian 9 – Clients 1

Now that we’ve got a basic Icinga 2 and Icinga Web 2 configuration running, let’s add some stuff to monitor, right? As said last post, Icinga-wise there are masters, satellites and clients. For my setup, with a few dozen servers, I only have one master and the rest are clients. I’m not running any satellites. This…

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Icinga 2 and Icinga Web 2 on Debian 9 – Installation

If you’re following along, we’re completely ready and fully prepared for the Icinga 2 software installation. After today we’ll have a working interface and can start adding clients. When you’ve read the documentation, you’ll have learned that Icinga-wise there are masters, satellites and clients. Having all 3 is essential in large distributed setups. For my…

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Icinga 2 and Icinga Web 2 on Debian 9 – LEMP preparation

So be sure to check out the documentation from the intro post, especially the official documentation. Now we’ll be prepping our server for the Icinga 2 and Icinga 2 web installation. First and foremost, you need a fully functional LEMP stack. Check out the full series how to setup one here, here and here. It’s really…

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