Aurélien Duboc

EN - Prometheus: Outscale VM service discovery (new feature)

2026-02-21T00:00:00+00:00

Prometheus can discover scrape targets from cloud APIs (EC2, Azure, GCE, etc.). This post describes a new discovery integration for Outscale Cloud: outscale_sd_configs, contributed upstream.

What is Outscale?

Outscale is a cloud provider offering an AWS-compatible API (among others). If you run workloads on...

EN - Prometheus AWS EC2 service discovery: fixing the custom endpoint (regression fix)

2026-02-21T00:00:00+00:00

After the migration to AWS SDK v2, Prometheus AWS EC2 service discovery stopped applying the configured endpoint option. This post summarizes the regression and the fix contributed upstream.

Context

Prometheus EC2 service discovery lets you discover scrape targets from AWS EC2. Some setups use...

EN - Carrefour internal CTF (31/10/2025) - vulnerability themes

2025-10-31T00:00:00+00:00

CarrefourTheFlag 2025 (C4CTF) was an internal Capture The Flag run in late October 2025, with 102 participants. This post summarises the vulnerability types that appeared in the more advanced challenges and illustrates them with generic examples. It is not a write-up or solution guide.

Context

The CTF...

EN - Velero disaster recovery: pre-hooks and post-hooks for application-consistent backups

2024-06-12T00:00:00+00:00

In 2024 I spent a lot of time on disaster recovery (DR) for Kubernetes, mainly with Velero. Getting backups that are safe to restore for stateful apps (databases, queues) means making them application-consistent. Velero’s pre-hooks and post-hooks are the right tool for that. This post sums up how...

EN - Filecoin ecosystem: Lotus miner, Farcaster, and CID Gravity

2023-08-22T00:00:00+00:00

In 2023 I worked in the Filecoin ecosystem, mainly around Lotus (miner and node) and tooling for storage providers. This post is a short overview of that context and of CID Gravity, a gateway and management layer that makes it easier to work with Filecoin storage...

EN - Re-parenting processes to a new terminal with reptyr

2023-03-25T00:00:00+00:00

Reptyr lets you move a running process (e.g. started in one SSH session or terminal) into another terminal or into tmux/screen, without stopping it. Useful when you forget to start a long job inside tmux, or when you need to hand off a process to another session.

FR - Writeup - HackSecuReims 2022

2022-03-15T00:00:00+00:00

– – Sommaire – –

[Reverse] InfiniteCrackme 1
[Reverse] InfiniteCrackme 2
[Misc] Oneliner
[Programming] Mathematician
[Web] Werkzeug Fuzzing 1
[Web] Werkzeug Fuzzing 2
[Web] Werkzeug Fuzzing 3

[Reverse] InfiniteCrackme 1

Source de...

EN - Kubernetes service accounts for Vault CSI with Confluent Helm charts

2021-11-17T00:00:00+00:00

When using the Vault CSI driver to inject secrets or certificates into pods, each pod needs a dedicated Kubernetes service account. This post describes a contribution to Confluent’s Kafka Helm charts to make those service accounts configurable.

Context

The Vault CSI provider lets Kubernetes pods get...

EN - Introduction to Hacking Android

2020-11-10T00:00:00+00:00

This article might help you to reverse Android application and access new features upon it. I disclaim any liability if you use this article for illegal actions.

Thanks @cyxo_o for helping me on this

Live presentation on Twitch