@diofeher

Diógenes Fernandes

@diofeherJoined August 2023

Platform Engineering

About

I'm from Brazil and I've been working professionally with technology since 2009. I love to learn, and my current professional interests are:

Infrastructure Security Platforms Cloud Coding and automation (always my number #1 <3)

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Diógenes Fernandes's blogs

Diógenes Fernandes's blogblog.diofeher.net12 posts

My Kubecon NA experience!

Hey, everyone, how is it going? I attended KubeCon NA in Atlanta two weeks ago, and it was a great experience! Connecting with the community and meeting co-workers was the highlight for me, as I've sp

6h ago · 2 min readblog.diofeher.net

Advisionary vs Mandatory Locking

In September 2025 I was working on getting OpenTofu's unit tests to run on Windows in CI (#1201). Most failures were boring: missing .exe extensions, \r\n line endings, path separators. One wasn't. Te

7h ago · 5 min readblog.diofeher.net

How the academia is innovating in Network Security?

Most of the Internet's core protocols were designed on the assumption that everyone involved is honest. BGP accepts whatever routes a neighbor announces, and DNS answers are rarely checked. Industry p

7h ago · 3 min readblog.diofeher.net

How to verify your commits on GitHub

Git doesn't check who you are. The author name and email on a commit are whatever is in your config, so anyone can make a commit that claims to be from you: git -c user.name="Your Name" -c user.email=

7h ago · 5 min readblog.diofeher.net

Why I am writing again?

I'm coming back to writing to get better at it. I've come to think that writing is one of the skills that separates a senior engineer from the next level up, and it's the one I've practiced least. Whe

7h ago · 4 min readblog.diofeher.net