Tech Couch

A Comfy Corner for Software, Security, Cloud, and AI

Browse category server admin

Exploring CPU caches

Why modern CPUs need L1, L2 and L3 caches

Automating web server setups with ansible

Reliable web server setups across multiple hosts

The downsides of source-available software licenses

And how it differs from real open-source licenses

Configure linux debian to boot into a fullscreen application

Running kiosk-mode applications with confidence

Common pitfalls running docker in production

Avoiding the mistakes many make when embracing containerized deployments

Modern linux networking basics

Getting started with systemd-networkd, NetworkManager and the iproute2 suite

Understanding how RAID 5 works

Striking a balance between fault tolerance, speed and usable disk space

A practical guide to filesystems

Picking the best option to format your next drive

A primer on LVM

Making the most of your storage devices

Automated security hardening on RockyLinux with OpenSCAP

Securing enterprise linux in less than a minute