Tech Couch

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

server admin

Understanding permissions on linux files and directories

Defining who can access what on the filesystem

Managing users on linux

A guide on users, groups and authentication

Forwarding docker container logs to Grafana Loki

Advanced log processing for local container environments

Understanding computer storage units and transfer speeds

Making sense of Gb, GB, GiB, Gbps and GBps

A Practical Guide to Linux Disk Encryption

Keeping disk contents safe from prying eyes

Editing files with nano

Terminal file-editing made easy

Understanding bash stream redirection

Controlling the flow of data in and out of programs

Working with tar archives

...and tar.gz, tar.bz2 and tar.xz

Understanding the linux tee command

Copying stdin to multiple outputs

Protecting linux servers from malware with ClamAV and rkhunter

Finding malicious files the open source way