Concrete implementation of the Cisco AI Defense three-point guard pattern on an LLM-driven infra operation. NetBox as source of truth, Nemotron via NVIDIA NIM as the LLM, AI Defense inspecting input, tool arguments, and output. Six demo scenarios: prompt injection, destructive action, PII leakage, credential exfil.
Practitioner-tooling build guide for turning a Raspberry Pi into a network-accessible serial console server for the Cisco Secure Firewalls (1200 / 3100 / 4200) via USB-C native CDC-ACM, and legacy DC gear via RJ45 with USB-serial adapters. Around $85 and 30 minutes.
Reproducible walk-through for building a free, perpetual Oracle Cloud lab — 2× AMD E2.1.Micro + 1× ARM Ampere A1 (2 OCPU / 12 GB), Ubuntu 24.04, Caddy for auto-TLS, Cloudflare DNS. The infrastructure everything else on this site actually runs on. Around $0/month, forever.
Work in progress build guide for the Cisco Secure Firewall 1210CE — from unboxing through FTD 7.6 baseline, Security Cloud Control onboarding, Talos, ThousandEyes, Duo, and Umbrella integration. 14 chapters staged; console-access chapter is complete (via the ConsolePi USB-C CDC-ACM path), rest have real outlines with fill-in markers as the lab is built.