Infrastructure
Troubleshooting QNAP SNMP monitoring timeouts
Why Prometheus kept timing out on SNMP scrapes against a QuTS Hero NAS, how I tuned exporter and scrape timeouts, and the NFS and SMB follow-ups that showed up afterward.
Blog
Ideas y Reflexiones
Ideas sobre tecnología, liderazgo, productividad y crecimiento personal en la industria tech.
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Networking
Troubleshooting Inter-VLAN Routing Performance on MikroTik RouterOS
Why inter-VLAN traffic sat around 500 Mbps while same-VLAN traffic hit ~830 Mbps, and what actually fixed it (spoiler: not the CPU, and not only FastTrack).
Infrastructure
Setting Up Gitea as a GitHub Backup
Why I mirror GitHub into self-hosted Gitea on Proxmox, how Ansible and Docker-in-LXC fit together, and the gotchas that showed up along the way.
Infrastructure
Health monitoring for Pi-hole and Unbound
What is actually wired into Uptime Kuma today: HTTPS on the admin UI plus a real DNS query per Pi-hole instance, and why that beats HTTP-only checks.
Infrastructure
Migrating my SMTP relay from Postfix to Mailrise
Why I replaced a Postfix + pipe + Apprise stack with Mailrise for QNAP mail, what broke along the way, and where I stopped chasing perfect formatting.
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