Tag: sysadmin

All the articles with the tag "sysadmin".

• Bulk rename files in bash

  Updated: 5 Apr, 2026

  Remove spaces and special characters from filenames using bash loops, rename, find, and parameter expansion tricks.

• When systemd swallows your service logs

  Updated: 5 Apr, 2026

  Service restart not showing logs? systemd hides stdout. Learn journalctl, systemctl status, and debugging workflows for silent systemd failures.

• SSH keys and secure file copy

  Updated: 5 Apr, 2026

  Generate SSH keys, set up passwordless auth, configure SSH, and transfer files securely with SCP — the foundation of headless Linux work.

• Alert Fatigue: Why Your Alerts Are Meaningless

  28 Mar, 2026

  You get 50 alerts a day and ignore all of them. That's not monitoring — that's noise. Here's how to build alerts people actually care about.

• MySQL & MariaDB CLI in 2026: What Changed

  5 Mar, 2026

  MySQL 8.0 broke auth, MariaDB forked hard, and Docker changed how you connect. Here's what still works and what'll bite you.

• Vault vs Infisical: Secrets Management for Teams Who've Learned the Hard Way

  19 Feb, 2026

  HashiCorp Vault vs Infisical compared: secrets management for DevOps teams, Docker Compose setup, SDK examples, and when complexity is worth it.

• Running Multiple Ollama Models Without Running Out of RAM

  9 Feb, 2026

  Ollama can load one model at a time on limited hardware. How to switch between models, use CPU offloading, and manage VRAM intelligently.

• Bulk File Renaming on Linux: rename, vidir, fd

  4 Feb, 2026

  Master bulk file renaming on Linux with rename, vidir, fd, and mmv. The right tool for every scenario from regex rewrites to visual editing.

• Disk Space Tools in 2026: Beyond du and df

  31 Jan, 2026

  du and df still work, but Rust-era tools like dust, duf, and fclones make disk triage faster and way less painful in 2026.

• Self-Hoster's Disaster Recovery: When Everything Goes Wrong at Once

  23 Jan, 2026

  Build a real disaster recovery plan for your home lab: RTO/RPO explained simply, 3-2-1 backup rule, Proxmox backups, Restic to Backblaze B2, and a runbook template you'll actually use.

• Compression in 2026: zstd Changed the Game

  22 Jan, 2026

  zstd is as fast as gzip with near-xz compression ratios. Here's why you should drop bzip2 forever and how to use zstd in 2026.

• Ollama Memory Management: Why Models Keep Loading

  22 Jan, 2026

  Why your GPU fills up with Ollama. How to inspect VRAM usage, set context limits, and manage multiple models without constantly reloading.