Posts

2025

• phishing and countermeasure March 11, 2025
• calculator challenges March 11, 2025
• more resources for learning and using git (2) January 30, 2025
• on reliability of services January 19, 2025
• outdated infrastructure references January 13, 2025

2024

• connect remotely to a Linux machine November 20, 2024
• on Traefik ingress stuck in progressing in ArgoCD November 14, 2024
• common mistakes in Go September 7, 2024
• minimal perfect hashing September 5, 2024
• Kubernetes stalk August 14, 2024
• A/B testing August 11, 2024
• Kubernetes Security - CtF style learning & pentesting July 26, 2024
• probabilistic database lookup July 3, 2024
• deleting stuck namespace in kubernetes June 25, 2024
• random points on spheres May 2, 2024
• Kubernetes Network Policies April 27, 2024
• hints for using ssh March 10, 2024
• notes from creating TLS setups March 9, 2024

2023

• the POSIX test command November 29, 2023
• about "being glue" November 29, 2023
• data visualization pitchfalls November 20, 2023
• expenses of Signal in 2023 November 19, 2023
• digital logic November 19, 2023
• aspell and markdown November 1, 2023
• Platform Engineering talk from Liz at gotoCPH October 31, 2023
• layerform October 31, 2023
• emoji and grapheme clusters October 31, 2023
• risks of embedded bare repositories October 29, 2023
• Donut in C October 28, 2023
• introduction-to-golang October 19, 2023
• cache-strategy-from-http-to-db October 11, 2023
• cloud native software engineering August 11, 2023
• thread modelling 101 (DE) August 10, 2023
• Cloudland 2023 August 9, 2023
• IGER - Intergalaktische Erfahrungsreise 2023 July 21, 2023
• Conflict-free Replicated Data Type July 5, 2023
• voronoi diagrams June 27, 2023
• wireguard June 19, 2023
• GPN21 June 15, 2023
• a crypto near miss May 16, 2023
• OpenAI: Multimodal Neurons May 3, 2023
• programming language playground April 24, 2023
• load balancing April 19, 2023
• eBPF April 17, 2023
• calculus exercise April 17, 2023
• clustering: BanditPAM April 6, 2023
• binding Haskell to Rust April 5, 2023
• awk tech notes March 30, 2023
• AI vs AI: Glaze March 20, 2023
• how to parse RegExp March 6, 2023
• how to write a spell corrector March 1, 2023
• LPI DevOps Tools Engineer Certification February 27, 2023
• ChatGPT explained February 21, 2023
• FosDem 2023 recordings February 10, 2023
• Hello World January 28, 2023
• mainless C++ January 24, 2023
• !!Con January 19, 2023
• text to speech with python January 9, 2023
• resources for learning git January 9, 2023

2022

• DevOps road map November 30, 2022
• Kubernetes Security - book and learning environment November 4, 2022
• yubikey details September 19, 2022
• learning by doing: writing network services September 9, 2022
• FrosCon2022: How to PullRequest August 30, 2022
• cache awareness July 22, 2022
• quantum computing 101 June 29, 2022
• GPN20: alerting May 30, 2022
• SE-Linux game April 27, 2022
• sorting algorithms April 21, 2022
• reasons to master git cli April 19, 2022
• evil compiler April 19, 2022
• bash pipe - how to fail April 13, 2022
• CVE-2022-0492 for fun March 8, 2022
• caches, what can go wrong and to to deal with it February 21, 2022
• HashiTalks2022 February 17, 2022
• average of integers February 8, 2022
• FosDem 2022 artifacts February 7, 2022
• systemd by example January 26, 2022
• shell dotfiles and when they are used January 20, 2022
• jsoniq January 20, 2022
• rC3 nowhere suggestions January 9, 2022

2021

• pitfalls in performance monitoring December 16, 2021
• explain shell December 10, 2021
• PackagingCon November 25, 2021
• Real World OCaml November 8, 2021
• inject by unicode November 1, 2021
• ARM only buffer overflow October 26, 2021
• functional basics in pictures October 21, 2021
• high performance computing 101 October 13, 2021
• how to script in bash October 5, 2021
• serialization of algebraic data types July 30, 2021
• write up: from stolen laptop to inside the company network July 29, 2021
• Playlist from Karlsruher Entwicklertag 2021 July 2, 2021
• memory leak with C++ runtime June 23, 2021
• distributed systems reading list June 23, 2021
• homomorphic encryption June 16, 2021
• command-line-secrets June 14, 2021
• kubeinvaders for k8s chaos engineering June 7, 2021
• large scale systemdesign June 4, 2021
• implicit differenciation June 3, 2021
• computing fibonacci the dynamic way May 19, 2021