Tag: linux

Socat: The Swiss Army Knife of Networking

socat relays data between almost any two endpoints — TCP, UDP, Unix sockets, files, and serial ports. The netcat you didn't know you needed.

User and Group Management in Linux

Create, modify, and delete users and groups on Linux — useradd, usermod, groupadd, sudo access, and /etc/passwd explained.

Understanding PostgreSQL Connection URIs

Decode the postgresql:// connection string — host, port, database, SSL mode, and the gotchas that cause connection refused at deploy time.

A Guide to LXC/LXD

LXC/LXD runs full Linux environments in lightweight containers — faster to spin up than VMs and perfect for home lab service isolation.

Talos OS: API-Driven, Kubernetes-First OS

Talos OS is an immutable, API-driven OS designed purely for running Kubernetes — no SSH, no package manager, pure GitOps.

Linux System Monitoring: Tools and Techniques

Monitor Linux servers with htop, iostat, netstat, vmstat, and Prometheus — pick the right tool for CPU, memory, disk, and network issues.

SumGuy’s Guide to Linux Log Analysis

journalctl, grep, awk, and tail -f — read your Linux logs like a pro and find the error before it pages you at 3 AM.

Linux Home Lab Security: Planning for the Unexpected

Harden your home lab against real threats — SSH hardening, fail2ban, network segmentation, backups, and preparing for when things go wrong.

Linux Bash Tips and Tricks pt1

Bash tricks that save keystrokes — history expansion, brace expansion, process substitution, and the shortcuts your fingers will thank you for.

Set the Timezone in Ubuntu with timedatectl

Set, verify, and sync your timezone in Ubuntu using timedatectl — one command to fix the clock on a newly provisioned server.

Creating Image Slideshows with Voiceovers using FFMPEG

Build a video slideshow from static images with a voiceover track using FFmpeg — concat filters, fade transitions, and audio sync.

Understanding the Mogrify Tool in Linux: A Guide to Image Manipulation

mogrify from ImageMagick batch-processes images — resize, convert, compress, and apply effects to entire directories at once.