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Practical guidance on DevOps, SRE, FinOps, observability, and Linux operations—written by the engineers who ship and operate products every day.

#Linux (2) #Permissions (1) #CLI (2) #Security (4) #DevOps (3) #Malware (1) #Fundamentals (1) #Docker (1) #Containers (1) #CI/CD (2) #DevSecOps (1) #Compliance (1)

Dec 25, 2025

File Permissions & Ownership in Linux (chmod, chown, chgrp, alias)

How rwx permissions work, numeric vs symbolic chmod, changing ownership with chown/chgrp, and using aliases for quick commands.

#Linux #Permissions #CLI #Security #DevOps

Dec 25, 2025

Understanding Malware Types + Handy FS Tools (tree, ncdu)

What viruses, malware, trojans, spyware, and worms are; a quick note on the GNU project; plus two useful file-system tools: tree and ncdu.

#Security #Malware #Linux #CLI #Fundamentals

Dec 25, 2025

Dockerfile Syntax: Writing Lean, Secure Images the Right Way

A practical guide to Dockerfile instructions, order, and best practices for small, secure, repeatable images.

#Docker #Containers #DevOps #CI/CD #Security

Dec 25, 2025

What Is DevSecOps? Security Built Into Every Release

DevSecOps folds security into DevOps so teams ship fast without leaving gaps. Here’s what it is, why it matters, and how to practice it.

#DevSecOps #Security #DevOps #CI/CD #Compliance