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Sebastian Marines

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I think I was part of a model distillation attack

Someone drained a legacy OpenAI API key I made back in 2023 and used it to run their own AI agent training pipeline. Here is what I found digging through the logs.

State of Cloud & DevOps Hiring in LATAM: What 8,500+ Job Listings Reveal

I scraped 8,500+ cloud-adjacent job listings across 14 LATAM countries from four job boards, enriched them with AI, and analyzed the results. Here’s what the data says about cloud providers, salaries, toolchains, remote work, company ratings, and the staffing agency problem in the region.

Reverse engineering my air conditioner app

Taking a look at the internals of my AC app

The journey of an internet packet: Exploring networks with traceroute

This article explains the mechanics behind traceroute, from IP headers and TTL fields to ICMP messages. Learn why traceroute is a crucial tool for network diagnostics, how it differs from ping, and how to interpret its output. Ideal for network administrators, IT professionals, and curious users looking to understand network topology and troubleshoot connectivity issues. Gain insights into…

Connecting to the DN42 decentralized network

Connecting to DN42, a decentralized network that uses VPNs and BGP.

Understanding Linux's File Descriptors: A Deep Dive Into '2>&1' and Redirection

In this post, we will learn what file descriptors are, how they work, and how to implement redirections from scratch.

Deploying Go to AWS Lambda with GitHub Actions and Terraform

In this article, we will explore how to deploy Go-based applications to AWS Lambda using the seamless integration of GitHub Actions and Terraform.

My (failed) attempt to unsubscribe from UnderArmour emails

I started getting promotional emails from UnderArmour in my personal email address, even though I never bought anything from them nor subscribed to any promotional newsletter. I tried to unsubscribe, but the link was broken. This is my story.