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Sebastien Wains

A markdown based wiki about Linux, Open Source, VoIP and other geeky stuff.

Sources of this site are available on Github.

You can't comment here but you can open an issue or submit a merge request on Github if something is incorrect or requires clarification.

What I'm up to today

For those who have known me for a couple of years now, you've learned that I was really into Linux, Postfix, OpenVPN and Asterisk for some time, back when I was managing 5 Linux servers or so.

Today, I manage more than 300. I spend a lot of time automating, centralizing and orchestrating system administration and management with those tools:

In the same vein of automation at a personal level, I'm a huge fan of Automagic on Android, Alfred on Mac, Albert on Linux, and hackable connected devices.

My work environnement is based on Fedora with i3 tiling window manager, running as a KVM on a libvirt RHEL7 host. I'm a die-hard shortcut keyboard user.

I talked about SaltStack at Jeudis du Libre conference. Check my Github for the decks.

Why a wiki?

Story time. I started this website in June 2005 (but bought the domain in March of the same year). The idea was to save notes about my findings so I could look them up later. I figured that I would share them online so it would probably help someone else down the line.

It all started as a self-hosted Wordpress blog as (changed to around September 2011). I had a lot of times on my hands and I was able to interact with my readers. On the busiest months I was getting 20000 visits a month. After a while, spam, bots and security issues became problematic, and the maintenance became a burden (files and database backup, PHP and security upgrades, dist-upgrades, etc.). I became kind of bored of maintaining or even publishing anything.

I needed something different. Something more automated and less cumbersome.

I wanted to publish things quickly, from anywhere in the world. I wanted to be able to write offline, and see my content pushed online almost automagically as I was getting a connection.

So here we are, July 2015, almost exactly 10 years later, the blog platform became a wiki platform. The (somewhat aging) content is still there and I hope you find useful stuff.

This site has gone through five major design revisions: 2005, 2008, 2011, 2015 and 2017

In 2015, it was running Wikitten.

In 2017 revision, I moved to Mkdocs as Wikitten didn't have a search engine and was not actively developed.

Why Markdown?

I write articles on my personal computer.

Markdown has some great advantages :

  • stored as plain text on disk
  • content is indexed making it easy to find content with Alfred/Spotlight/grep
  • you can grep, sed, awk the hell out of them and bring corrections very quickly
  • can be stored in a Git repository

This is my current publication workflow:

  • I edit articles locally with Visual Studio Code (yes, it is an open source Microsoft product, and it is very good)
  • I commit changes to my GitHub
  • With an Alfred workflow, I connect to my VPS and do:
    • a "git pull" to retrieve updates
    • rebuild the doc (which is served as static files by the HTTP server)
  • Article is online

About me

I like building simple, powerful, resilient, secure and automated infrastructures. Preferably based on open tools and protocols. Privacy and security are a concern.

When I'm not busy at the computer, I travel, hike, ski, camp out and take photos.

I'm an INTJ: INTJs are known as the "Systems Builders" of the types, perhaps in part because they possess the unusual trait of combining imagination and reliability. ~ Marina Margaret Heiss

I work in Brussels, Belgium.


If you want to contact me, just look me up.

Found an error on this site?

Open an issue on Github