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Quis custodiet ipsos custodes?
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01-01-2006 | Remy van Elst

Hello! I'm a linux/unix sysadmin. I like the devops mindset and absolutely love configuration management frameworks like Ansible, Chef or Puppet. I've got lots of experience with a variety of free and open source software as well as with closed source business applications.

On this website you can find scripts and tutorials, mostly for GNU/Linux and other open source software. Also some homebrewed pieces of software you might find interesting. This is also my own public documentation archive.

If you want to send me feedback, emails or comments, see below for the contact details.

Are you a hacker?

Yes, I am. But don't stop reading yet.

I don't break into things. I don't crack passwords. I don't try to do harm to people. I don't screw over others for personal gain.

The word "hacker" probably doesn't mean what you think it means. It doesn't mean someone that breaks into computers.

So then, what are you?

I'm a hacker.
I find inventive solutions to problems. I write open-source code, and help out people where I can - particularly if it involves a clever technical solution.
This is what the word "hacker" really means. This website will give you an idea of the exact things I'm involved in.


I don't sugarcoat.

If you ask me for criticism, I will give you clear, unfiltered criticism. No sugarcoating. I will tell you exactly what I think how I think it. If you cannot deal with this, either try and get used to it, or don't ask me for criticism.

If I see something happening that I consider unacceptable, I will respond to it - again, not sugarcoating. I can be a giant pain in the ass, some of the most notable examples involving web and application security.

Why do I do this? Although it is commonly claimed that I do, I have no desire to feel 'right' or 'powerful'. I simply believe that avoiding or sugarcoating does noone a favour.

If I were to sugarcoat what I said, you would never have a clear idea, and I would have to tread carefully not to offend you. We both lose. Therefore, I will be straight-forward with you.

I desire the same from you. If I do something stupid, tell me so and explain what I'm doing wrong. If I'm doing something unacceptable, tell me so.


You can reach me by email, try mailing I'm not on any social networks, not on facebook, not on twitter, not on identica, not on diaspora, nowhere. Every profile on a social network claiming to be me is false.

This is my public S/MIME certificate for email:


There are some GPG keys floating around but those are used for experimenting. Please do not use those to encrypt email for me. Use the above S/MIME certificate.

Forums I'm active on:


All the text on this website is free as in freedom unless stated otherwise. This means you can use it in any way you want, you can copy it, change it the way you like and republish it, as long as you release the (modified) content under the same license to give others the same freedoms you've got. .

All the code on this website is licensed under the GNU GPL v3 license unless already licensed under a license which does not allows this form of licensing or if another license is stated on that page / in that software:

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see .

Just to be clear, the information on this website is for ment for educational purposes and you use it at your own risk. I do not take responsibility if you screw something up. Use common sense, do not rm -rf / as root for example. If you have any questions then do not hesitate to contact me.

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