Blog
Here you will find all my articles on programming, technology, and design.
OpenSSL — basics and most important commands
2026-01-12
OpenSSL is a versatile tool for working with certificates, keys, and SSL/TLS protocols — useful for both server administrators and developers. In this post, I will explain the most important concepts and present accessible examples of the most commonly used commands. What you will learn How to generate a private key and a CSR (Certificate Signing Request) How to create a self-signed certificate for testing How to check and convert certificate formats (PEM/DER/PFX) A few practical tips and warnings Installation On most Linux distributions, OpenSSL is available from the package manager:
Base Containers in CI: The Key to Scalability and Security of the Entire DevOps Process
2025-02-11
In the IT industry, there’s a lot of talk about DevOps (Development & Operation), and sometimes the terms DevSecOps or DevOpsSec also appear, adding the security aspect to the entire process. And here begins a certain problem, a certain oversight, because it’s assumed that these three elements are enough. Even worse, if superiors receive information (or the impression) that the prepared process will run independently for years. In the real world, we observe three spatial dimensions and one temporal dimension.
My First Blog Post
2024-11-01
I must admit, writing my first blog post feels like the hardest part. I keep asking myself whether I should step out of my comfort zone and share my thoughts with you, or if it’s too soon. I think the best answer is to just dive in and see what happens. On this blog, I plan to focus solely on technical and travel-related reflections. These will be subjective musings, as many answers depend on the specific context.