CTFd on Ubuntu 18.04 Oct 23, 2018

⚠️ Museum post

This post is a piece of history of this blog, imported from older times where practices were different. It remains online for the sake of sharing information, but should not be used at face value anymore.

A tiny bit of context

So every now and then I give introductory courses to embedded systems security. To keep the students engaged, I mix in a CTF: most practical cases are actually challenges that earn points. At the end of the course, the team that has gained the most points wins a prize.

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Splitting the IPS from the routing function with pfSense Feb 22, 2018

⚠️ Museum post

This post is a piece of history of this blog, imported from older times where practices were different. It remains online for the sake of sharing information, but should not be used at face value anymore.

Performance issues with my previous setup

On a previous post, I explained how I set up a virtual router between my home network and my ISP box. That setup was later enriched with the Suricata IPS, running using the NFQUEUE bindings to check all traffic that went through my router.

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Icinga 2 with InfluxDB & Grafana on CentOS 7 Aug 16, 2017

⚠️ Museum post

This post is a piece of history of this blog, imported from older times where practices were different. It remains online for the sake of sharing information, but should not be used at face value anymore.

Foreword – PHP-FPM

Icinga now uses PHP-FPM. Part of this installation guide needs an update to reflect that, I’ll cover it later on when my current home projects are done.

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Isolation Access Point with CentOS 7 Nov 27, 2016

⚠️ Museum post

This post is a piece of history of this blog, imported from older times where practices were different. It remains online for the sake of sharing information, but should not be used at face value anymore.

A bit context: being the family’s IT guy

If you’re reading this article, you’ve probably already been there at some point: when you’re the guy that’s comfortable with computers in any social circle, you end up with people asking you to fix their computers. Following that, and granted the person who’s asking you this is not a complete asshole, you gently accept and try to see how you can help. Well, at least, that’s what I do.

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Setting up the Suricata IDPS Nov 27, 2016

⚠️ Museum post

This post is a piece of history of this blog, imported from older times where practices were different. It remains online for the sake of sharing information, but should not be used at face value anymore.

Introduction: Perimetric versus in-and-out protection

In a previous post, I described how to set up a basic router in a virtual machine. One of the things I didn’t include was setting up an IPS to analyze the network traffic and detect bad behaviour.

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