How to quickly get hostnames of a TLS certificate
Use OpenSSL and awk to quickly extract hostnames from a certificate file!
How to verify SSH host keys and optionally using SSHFP in DNS
In this article I'll guide you through verifying SSH host keys manually, then the crazy shell shenanigans way, and finally we'll talk about SSH keys in SSHFP DNS(SEC) records!
Linux with compressed RAM!
Today we'll recreate Apple Magic on Linux (kind of)
Running your own AI in-house – Part 1 – LLM/LVM – Ollama in the shell
In this guide I'll show you how to install Ollama and running your first LLM/LVM, recommend some models, give you examples on how to script with it and finally how to describe images. This is the first article in a series of articles on how to run AI in-house.
I set up my own Arch Linux mirror…
I did the thing they tell you not to do: I set up my own local Arch Linux mirror at home.
Rebooting Linux without rebooting
Avoid downtime and reboots with Linux! 🚀 Learn how to “reboot” user-space with systemctl soft-reboot, load a new kernel with systemd kexec, and minimize interruptions with live patching. Say goodbye to long restarts and hello to (more) seamless updates! 🖥️✨
How to fix fail2ban on Raspberry Pi OS
Today I flashed Raspberry Pi OS and noticed the default config of fail2ban is broken and in this short article I give you the quick fix.
Quickly find duplicate files on UNIX-like systems
Need to locate duplicate files while SSH'ing into a Linux server and don't have access to external tools? Discover how to effortlessly find duplicates using only your onboard tools, even on macOS. A simple command helps you quickly identify a handful of duplicates without breaking a sweat! 💻 🚀
How to fix Turris Omnia “Signature check failed”
The article discusses an issue with Turris Omnia routers where running "opkg update" results in a "Signature check failed. Remove wrong signature file" error. The problem is caused by incorrect repo URLs set by the latest medkit, which points to HBL instead of HBS.
Installing Linux Mint Debian Edition with Encryption and Btrfs subvolumes
Today, I'll show you how to manually install Linux Mint Debian Edition with encryption and Btrfs subvolumes using the expert installer option.