On Fedora, the most powerful and accurate tool for this task is Whipper. It is a Python-based CD ripper that prioritizes accuracy over speed and uses the AccurateRip database to verify your files bit-for-bit. 1. Install Whipper Fedora includes whipper in its official repositories. Open your terminal and run: Bash 2. Drive Calibration (One-Time Setup)… Read More: Fedora Linux: Digitizing my CD collection »
OMG the server is dead It is the scenario every homelabber dreads: a catastrophic failure. My HP MicroServer Gen8 didn’t just lose a drive; the primary RAID 1 array holding the OS suffered a double-disk death. Starting from scratch with Fedora 43, I had two goals: build a bulletproof, redundant boot drive on new hardware,… Read More: Resurrecting the Gen8: Fedora 43, Legacy BIOS, and the Case… »
In high-performance enterprise environments, the chain is only as strong as its weakest link. I recently faced a critical issue where a long-running task in my development machine running in JBoss Application Server was failing consistently. The investigation led me down a path from application timeouts deep into the core I/O mechanics of the Oracle… Read More: The Case of the Frozen Database: How Tuning NVMe I/O… »
I am a big fan of of Starship Cross-Shell prompt see https://starship.rs/ You can add to the command line very fancy information besides the default stuff that is also extremely useful. You can add a workday hour counter to your Starship prompt by creating a small script and then telling Starship to display its output… Read More: Starship with bash: customize the status command line with a… »
A nice and simple way to determine what process occupies a port in Linux is using lsof For example if you want to see what process is occupying port 3000. Looks like we have here a Grafana server working in background.
When setting up https for Grafana we need separate files to set the security. One with the certificate chain in PEM format and another with the private key. Step 1: Convert the JKS keystore to the PKCS12 format. After that it will be easier to extract the certificate chain and the private key. Step 2:… Read More: Secure Grafana with HTTPS: Extracting Keys and Certificates »
In the world of network administration and troubleshooting, there are countless moments when you need to verify connectivity. Is a specific client successfully reaching a server on a designated port? Is the server responding? Or is something silently dropping the packets? For these scenarios, the command-line tool tcpdump is an invaluable asset – powerful, versatile,… Read More: Bash one liners: Keeping an Eye on Connections: Using tcpdump… »
I own my family name as an internet domain with several country codes. It’s not every day you get to claim your heritage in the digital world like that. However, this seemingly harmless act has turned me into an unexpected recipient of a rather peculiar type of email: the multilingual ransomware scam. My inbox, normally… Read More: My Family Name Domain and the Multilingual Ransomware Scam »
Some websites require to obtain the time-zone from the client browser in order to correctly display some information. This is not always critical but in case you are using some web hosted e-mail or calendar account this is important. One day I noticed that suddenly all my tutanota.com mail calendar events were completely off by… Read More: #Firefox took a wrong time-zone when resistFingerprinting is on »
After experiencing for years with several small scale UPSes that are mainly used for desktop computers or small offices I decided to up the game. As you may know from the top sticky post this blog is self hosted in a home rack. Adding a proper rack UPS was on the agenda for a long… Read More: Low cost UPS set-up: NJOY Balder 1000 + NJOY CA0312GX-AZ… »