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How to Use top for Real-Time Process Monitoring in Linux: Table of Contents What This Article is About (And Why You Actually Should Care) A Real-World Drama: When Your Server Goes Wild Why Real-Time Process Monitoring Matters How top Works: Peeking Under the Hood A Tree of Use Cases & Benefits: Why You’ll Want top in Your Toolbox How to Set Up and Use top... mangohost.net/blog/how-to-use- #blogpost #performance #monitoring

Network Path Tracing with traceroute and mtr – A Practical Guide: Table of Contents What This Article is About The Real-World Network Nightmare Why Network Path Tracing Matters How Does traceroute and mtr Actually Work? Use Cases Tree: When to Trace and Why Bother? Quick & Easy Setup: Step-By-Step with Examples Mini Glossary: Real-Talk Definitions Comic Comparison: traceroute vs. mtr (and Friends) Beginner Mistakes, Myths &... mangohost.net/blog/network-pat #blogpost #connectivity #networking

Track User Activity with whois, w, and last: Table of Contents Why Bother Tracking User Activity? A Real-World Nightmare: Who Did This? What Are whois, w, and last (and why do YOU need them)? How Do These Tools Work? Short Geeky Deep-Dive Use Cases: From “Whodunnit?” to “Who’s Online Right Now?” Quick Setup: Step-By-Step Guide Mini Glossary: Real-Talk Definitions Examples, Stories, and a... mangohost.net/blog/track-user- #blogpost #security #usermanagement

A Complete Guide to htop: The Interactive System Monitor: Table of Contents What This Guide Is About (And Why You Should Care) The Server Nightmare: Why You Need htop What is htop and How Does It Work? Setup htop in 60 Seconds: Fast & Furious Edition The htop Benefits Tree: Use Cases for Real People Step-by-Step Guide: htop Mastery Mini Glossary: htop Slang, Decoded... mangohost.net/blog/a-complete- #blogpost #performance #monitoring

Bandwidth Monitoring with iftop: A Real-Time CLI Guide: Table of Contents What This Guide Is About (and Why You Need It) The Dramatic Bandwidth Mystery The Real Problem: What’s Eating Your Bandwidth? How Does iftop Work? (Under the Hood) Tree of Use Cases & Benefits Setup iftop in 3 Minutes or Less Step-By-Step Guide & Practical Examples Real-Talk Mini Glossary Comic Metaphor: Comparison... mangohost.net/blog/bandwidth-m #blogpost #connectivity #networking

Visualize GPU Performance with nvtop and radeontop – modern guides for NVIDIA and AMD users: Table of Contents What This Guide Is About (and Why You Should Care) The Dramatic Saga of the Overloaded GPU Why GPU Visualization Matters How Do nvtop and radeontop Work? Use Cases: Where Top Tools Shine Step-By-Step Setup Guide Mini Glossary: Real-Talk Definitions Examples and Cases (Comic Comparison Table!) Beginner Mistakes, Myths & Similar… mangohost.net/blog/visualize-g #blogpost #performance #monitoring

Brand new blog post up: Get your own domain name!

On not just switching email service provider, but getting a domain name to go with the switch (if you don't already have one), so you can switch again later if needed.

And owning a little bit of your Internet presence.

And maybe later on putting a web site up, too. Maybe. It's not like you have to.

michael.kjorling.se/blog/2025/

Michael Kjörling · Get your own domain name!

Level Up with bpftrace: eBPF Tracing Made Easy in 2025 – explore kernel‑level insights: Table of Contents What This Article is About Dramatic Real-World Situation: The Case of The Vanishing Performance Why bpftrace? Why Now? How Does bpftrace Work? (Algorithms & Structure) Use Cases & Benefits Tree Quick Setup Guide: Get bpftrace Running Fast Mini Glossary: Real-Talk Definitions Examples & Cases: The Good, The Bad, and The Kernel Comic... mangohost.net/blog/level-up-wi #blogpost

How to Copy, Move, and Delete Files with cp, mv, and rm: Table of Contents Why You Need to Master cp, mv, and rm A Tale of Lost Files and Midnight Panic How Do cp, mv, and rm Work? Quick Algorithms & Structure Real-World Use Cases & Their Benefits Step-by-Step: Copy, Move, and Delete Like a Pro Mini Glossary: Real-Talk Definitions Examples, Cautionary Tales, and Pro Tips... mangohost.net/blog/how-to-copy #blogpost #disks #filesystem

Profiling at the Kernel Level with perf – From Basics to Pro Tips: Table of Contents What This Post Is About The Drama: Troubleshooting in the Dark Why Should You Care? How Does perf Work Under the Hood? The Use Case Tree & Benefits Lightning Setup: perf in Minutes Step-by-Step Guide: Your First perf Profile Mini Glossary: Real-Talk Case Studies: When perf Shines (and When It Doesn’t) Comic... mangohost.net/blog/profiling-a #blogpost

Use Checkmk for Universal Monitoring of Servers and Networks: Table of Contents What This Article is About (and Why You Should Care) A Real-World Monitoring Disaster (And Why It Matters) Why Monitoring is So Darn Important How Does Checkmk Actually Work? Why Bother? Checkmk Use Cases & Benefits How to Set Up Checkmk: Fast & Painless (Step-by-Step Guide!) Mini Glossary: No-Nonsense Definitions Examples, Cases,... mangohost.net/blog/use-checkmk #blogpost #observability #monitoring

Self-Hosted Monitoring with VictoriaMetrics + Grafana: A Lightweight Alternative: Table of Contents What’s This Article About, and Why Should You Care? The Real-World Gotcha: Why Traditional Monitoring Sucks (Sometimes) VictoriaMetrics + Grafana: How Does This Duo Work? Tree of Use Cases: Who Needs This and Why? Quick and Easy Setup: Step-by-Step Guide Mini Glossary: Real-Talk Definitions Comic Comparison Table: The Monitoring Showdown… mangohost.net/blog/self-hosted #blogpost #cloud #monitoring

Creating Files and Folders with mkdir and touch – Simple Examples: Table of Contents What’s This All About? Dramatic Real-World Problem: The “Where’s My Folder?!” Panic Why Files and Folders Matter (More Than You Think) How Does mkdir and touch Actually Work? Tree of Use Cases – When and Why Step-By-Step: Fast Setup with mkdir & touch Mini Glossary (The Real-World, No-Nonsense Edition) Examples and Cases:... mangohost.net/blog/creating-fi #blogpost #disks #filesystem

All-in-One Observability with Better Stack: Uptime + Logs + Alerting: Table of Contents What This Post is All About The Drama: The Dreaded Server Blindspot Why Do Uptime, Logs & Alerting Matter? Better Stack: How Does It Work? Tree of Use Cases & Benefits The Quick-and-Dirty Setup Guide Mini Glossary (For Real Humans) Examples and Cases + The Comic Comparison Table Beginner Mistakes, Myths, and... mangohost.net/blog/all-in-one- #blogpost #cloud #monitoring