What I think of the CCNA exam, and the resources I used during my studies.

VLAN Hopping attack. How to escape your VLAN and get into any other VLAN in the network.

ESP32 talks MQTT over mTLS to the cloud, the IoT Wi‑Fi is isolated on its own VLAN, traffic is watched by Suricata, attackers are lured into a Cowrie honeypot, and I glued the logs into a tiny Flask dashboard. Total cost was lot of coffee + an intensive 3 weeks of troubleshooting + ~$150 in hardware.

Simple and effective steps to troubleshoot and resolve router connection refused errors, ensuring smooth access to your router's settings.