Security Engineering

This section offers practical, hands‑on guides for building, securing, and monitoring infrastructure.

• OpenBSD Firewalls
  Setting up an OpenBSD system as a packet filtering firewall.
• Nested Virtualisation
  Enabling nested Virtualisation on ProxMox VE and KVM.
• Capture the Flag Exercises: Part Three
  Adding security monitoring to our CTF platform.
• Capture the Flag Exercises: Part Two
  Adding vulnerabilities into our CTF environment using Ansible.
• Capture the Flag Exercises: Part One
  Setting up an infrastructure penetration testing CTF.
• Local Large Language Models
  Running LLM’s on Ubuntu.
• VXLAN’s
  Configuring VXLan’s in Linux.
• x64 Call Stack Walking
  Walking an x64 call stack using UNWIND data structures.
• Headless Linux Disk Encryption
  Unlocking LUKS encrypted disks remotely.
• Blocking Outbound Docker Traffic
  Blocking outbound docker traffic using an IPTables firewall.
• PowerShell Constrained Mode
  A guide to enabling PowerShell constrained mode.
• Kali OpenVPN Killswitch
  Ensuring all network traffic is routed over an OpenVPN connection.
• Software Restriction Policies
  Configuring Software Restriction Policies (SRP) in Windows 10.
• Active Directory Honey Tokens
  Configuring Active Directory honey tokens to detect account enumeration.
• Creating a WPA2 Enterprise Access Point
  A guide to configure a Linux system as a WPA2 Enterprise wireless access point using an Alpha wireless adapter.