Luis Bretones

Computer Engineering Student

Networking & cloud infrastructure.
Studying for the CCNA, with RHCSA next.
Documenting what I learn and build along the way.

Projects → Blog →
Luis Bretones

Skills // Current stack

Networking

TCP/IP Subnetting VLANs DNS Wireshark Packet Tracer

Virtualization & Containers

Proxmox VE LXC Docker Docker Compose

Access & Security

Caddy Let's Encrypt Tailscale WireGuard GDPR

Backup & Monitoring

3-2-1 backups vzdump Hyper Backup rclone Telegram alerting

Automation & CI/CD

n8n GitHub Actions systemd cron Git

Code & OS

Java Spring Boot Maven Python Debian Arch Linux

Featured // Selected projects

Enterprise Network

Centralizing a small consultancy's services and storage on self-hosted infrastructure, with security, GDPR compliance, and verified backups baked in from the start.

  • 11 services in production
  • 0 ports open to the Internet
  • ~145 GB of photos migrated and verified
  • Receipt to archived document in ~15 s
networkinghomelabproxmoxself-hostingsecuritybackup
View project →

Vigía

A Java service that watches every service in the homelab with HTTP and ping checks and sends Telegram alerts only on state changes, running as a systemd unit in an unprivileged LXC.

  • 11 services watched
  • 44 tests
  • 172 MB RAM, 0.8 s startup
  • One alert per outage, zero duplicates
javaspring-boothomelabtelegrammonitoringsystemd
View project →

Certifications // Roadmap

In progress Cisco Certified Network Associate (CCNA 200-301) Exam early 2028
Planned Red Hat Certified System Administrator (RHCSA) 2028
Planned AWS Certified Solutions Architect – Associate 2028–29