Guides
5 guides covering security, infrastructure, and DevOps.
Multi-Stage Docker Builds with Scratch: Maximum Efficiency, Minimum Attack Surface
Why building a static Go binary in a multi-stage Dockerfile and shipping it on scratch produces one of the smallest, most secure container images possible — and how every line of the Dockerfile contributes.
Firewalld: Zones, Services & Advanced Rules
A comprehensive guide to firewalld covering zones, services, rich rules, IP management, Cloudflare whitelisting, and everything an administrator needs to lock down a server.
OpenVPN Install & Setup
OpenVPN Install & Setup
Rundeck with Postgres
Step-by-step guide to installing Rundeck with PostgreSQL as the backend database on Ubuntu 22.
SQL Select with Powershell on MSSQL
How to run a SQL SELECT query against a Microsoft SQL Server database using PowerShell.