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gabzaf/README.md

Gabriel Affonso

Linux System Administrator and Security Analyst in Porto. 42 Porto.

I harden and operate Linux with Python, Bash, Docker, Ansible and Vagrant: SSH, firewall, VPN, WAF, containers, Kubernetes (K3s/K8s) and logs. Ethical hacking on authorised labs (OWASP): recon, findings, and reports with impact and remediation.

Proof of work

Repo What it is
zero-trust-vps-platform Linux VPS I operate: WireGuard admin, Cloudflare WAF, Docker/Traefik, logs and rollback
pentest-lab-reports Lab reports (command injection, IDOR): finding, impact, fix — not commercial pentest

Stack

Linux Bash Python Docker Ansible C C++ TypeScript Kubernetes OWASP

(ISC)² CC. PT / EN / ES. As Electrical Engineer: risk, standards, clients.

LinkedIn

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  1. zero-trust-vps-platform zero-trust-vps-platform Public

    Production-grade self-hosted Linux VPS platform with zero-trust admin access via WireGuard, Cloudflare edge security, and reverse proxy with strict TLS. Documented with architecture diagrams.

  2. pentest-lab-reports pentest-lab-reports Public

    Authorised web pentest lab reports: OWASP findings with impact, reproduction at a high level, and remediation. Not commercial testing.

  3. cybersecurity-officer cybersecurity-officer Public

    Study notes for the Security Officer role in Portugal. NIS2/RJC, QNRCS, ISO 27001, NIST CSF, CIS Controls.

  4. FT_TRANSCENDENCE FT_TRANSCENDENCE Public

    ft_transcendence is a real-time multiplayer Pong game platform built as a full-stack web application.

    TypeScript 1

  5. 42_WebServer 42_WebServer Public

    HTTP/1.1 server in C++98. Single poll() loop, nginx-style config, static files, CGI, uploads, and virtual hosts.

    C++