https://blog.gk.wtf/posts/ Recent content in Posts on gk.wtf Hugo -- 0.160.1 en Mon, 11 May 2026 00:00:00 +0000 https://blog.gk.wtf/posts/plfanzen/ Mon, 11 May 2026 00:00:00 +0000 https://blog.gk.wtf/posts/plfanzen/ Writeups for the challenges I solved during Plfanzen CTF https://blog.gk.wtf/posts/shc-2026/ Fri, 01 May 2026 00:00:00 +0000 https://blog.gk.wtf/posts/shc-2026/ My writeups for the SHC 2026 Qualifier https://blog.gk.wtf/posts/endolum/ Sun, 01 Feb 2026 00:00:00 +0000 https://blog.gk.wtf/posts/endolum/ I participated in the endolum CTF for fun; here's my solutions https://blog.gk.wtf/posts/nixos-monitoring/ Wed, 21 Jan 2026 00:00:00 +0000 https://blog.gk.wtf/posts/nixos-monitoring/ This post goes over how I deployed an observability stack for my homelab using Prometheus, Alertmanager and Grafana on NixOS running in an LXC container on my Proxmox server. https://blog.gk.wtf/posts/shc-2024/ Wed, 01 May 2024 00:00:00 +0000 https://blog.gk.wtf/posts/shc-2024/ I participated in the SHC 2024 qualifier and managed to solve 30 out of 31 challenges. Here is my writeup for every challenge: https://blog.gk.wtf/posts/hackvent-2023/ Thu, 01 Jan 1970 00:00:00 +0000 https://blog.gk.wtf/posts/hackvent-2023/ I participated in HackVent 2023 and managed to solve 26 out of 27 challenges. Here are my writeups! https://blog.gk.wtf/posts/public-git-contributions-everyone-knows-your-mail-address-now/ Thu, 05 Oct 2023 00:00:00 +0000 https://blog.gk.wtf/posts/public-git-contributions-everyone-knows-your-mail-address-now/ Many people don't know that they are leaking their personal email address when making contributions on platforms that use git for version control. This post goes into that topic and show possible ways of mitigation. https://blog.gk.wtf/posts/shc-2023/ Tue, 02 May 2023 00:00:00 +0000 https://blog.gk.wtf/posts/shc-2023/ I managed to score 3rd in the swiss hacking challenge 2023 qualifier junior category and wrote a writeup for every challenge I managed to solve. See below for the different writeups/categories: https://blog.gk.wtf/posts/ti_nspire_file_upload/ Tue, 02 May 2023 00:00:00 +0000 https://blog.gk.wtf/posts/ti_nspire_file_upload/ This guide will show you how to load custom applications onto a supported TI Nspire using ndless