CIRCUITO
CARIOCA TI · DOCUMENTATION
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Systems · Security

Security in depth

Defensive engineering for Linux, firewalls, VPN, IDS/IPS, cryptography and deception.

security://catalog
$ pillars: firewall / vpn / ids / deception
$ method: validate → harden → observe
$ brazil: CERT.br / ISP / NOC
$ status: reviewed 2026_
Honeypot lab

The 2016 Kippo production study was preserved as historical evidence and rebuilt as a modern Cowrie deployment guide, without presenting obsolete software as current.