pollhammer.dev
Interactive
Explore hands-on lessons and interactive tools. Pick a topic and start learning.
📰
Usenet
The original distributed discussion network
🤖
Botnet
How networks of infected machines operate
🛡️
Cybersecurity Roadmap
Your path from beginner to pro
🔒
VPN Explainer
How VPN tunnels really work
💻
Powershell Basics
Hands-on Powershell exercises
🧠
Local AIs
Run LLMs on your own hardware
🐏
Mullvad
Inside Mullvad's RAM-only servers
📡
IMSI Catcher
How rogue cell towers intercept phones
🕸️
Darkweb
The infrastructure behind hidden services
👁️
Facial Recognition AIs
How AI identifies faces in real time
🌐
DNS
The internet's address book explained
🔌
DHCP
Automatic IP address assignment
🗂️
Active Directory
Centralized network management
🧱
Firewall
Filtering traffic at the network edge
🔀
VLAN
Logical network segmentation
↔️
NAT & PAT
How private IPs reach the public internet