One OU, one user and one group created manually in PowerShell, then edited, moved, deleted and disabled, with every error I hit and the Windows events each action left behind.

Checking that a client can find the domain controller, joining it to lab.internal, a half-finished rename, and what the login screen is really telling you.

Giving a Windows Server a fixed address, creating the lab.internal domain, setting up DHCP, and the network profile problem that showed up after the first reboot.

Adding the pfSense rule and the host route that make my Arch machine reach the lab only by crossing the firewall, and finding the first logged packet as proof.

A beginner's guide to installing Git, creating an SSH key, connecting to GitHub and pushing your first project, with the errors you will probably hit and how to fix them.

Installing pfSense in VirtualBox, assigning its three interfaces, and proving that a client on the lab network reaches the internet through it, including the mistakes I made along the way.

How I designed the network for my Hybrid Identity Detection Lab, why a firewall has to sit between the attacker and the domain, and the design mistake I caught before building anything.

My working notes on the fundamentals every defender needs — what a network is, the OSI and TCP/IP models, protocols, the shared responsibility model in the cloud, and how blue teams and SOC analyst tiers fit together.

A detailed guide on designing a mini SOC lab with network segmentation for enhanced security and monitoring.

# Security Engineering Learning Roadmap Access Granted. This section contains restricted internal documentation and study material. --- # Table of Contents 1. Linux Administration 2. Networkin...