André Ribeiro
Founder, Obelinf
André Ribeiro is the founder of Obelinf, the source of truth for your network infrastructure. He has hands-on experience with infrastructure and networks, and writes articles about IPAM, DCIM, network documentation, homelabs, and the wider world of infrastructure management.
Articles
Latest articles by André Ribeiro
Data Center Labeling: Racks, Panels, Circuits, Ports
A concrete data center labeling scheme for racks, panels, circuits, and ports that follows TIA-606, reads from the aisle, and keeps every cable traceable without a toner.
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Data Center Site Selection: Power, Fiber & Risk
How to choose a data center site by evaluating grid power and substation capacity, fiber density and carrier diversity, natural disaster risk, and latency to users and clouds.
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Disaster Recovery Site Planning: Distance, Replication and Failover
How to choose a disaster recovery site by distance, decide between synchronous and asynchronous replication, and select a failover location that survives the same event that takes down your primary.
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Getting Your Own ASN and IP Space: How to Join an Internet Exchange Point
How data center operators get an ASN and portable IP space from their RIR, prepare IRR and RPKI, and join an internet exchange to peer directly and lower transit costs.
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Water Usage and Heat Reuse in Data Centers
What WUE reveals about data center water consumption, how heat reuse and ERF capture recovered energy, and how to read CUE and sustainability metrics beyond PUE.
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Homelab Cooling Beyond the Fan Swap: Closets, Vents, and Intake Paths
Why a sealed closet defeats any fan upgrade, how to vent a homelab closet so cool air enters low and heat leaves high, and how to keep the intake path clear from room to rack.
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IoT on Its Own VLAN: Keeping Smart Bulbs Away From Your NAS
Your smart bulbs should not share a network with your NAS. Learn how an IoT VLAN isolates untrusted devices, which firewall rules matter, and how to set it up step by step.
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Proxmox vs ESXi vs Hyper-V: Picking a Hypervisor
Proxmox VE, VMware vSphere, and Hyper-V compared for 2026: how each one is built, what licensing actually costs, and a practical decision path for your team.
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Tracking IPs, VLANs, and Devices Before They Multiply
Set up the habit of tracking IPs, VLANs, and devices while your network is still small, before retroactive documentation and the first IP conflict catch up with you.
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UniFi vs Omada vs Aruba Instant On: Home WiFi Access Points Compared
UniFi, Omada, and Aruba Instant On are the three most common ways to upgrade home WiFi from a single router. This guide compares their management models, real costs, and when each makes sense.
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ZFS vs BTRFS vs EXT4: Filesystem Choices for a NAS
ZFS, BTRFS, and EXT4 compared for a NAS: how each one protects your data, what they ask of your hardware and your patience, and how to match the filesystem to the box you are building.
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BYO IP vs ISP-Assigned Space: PA vs PI Addresses When You Switch Providers
PA space belongs to your provider and PI space belongs to you. Learn how that distinction determines what happens to your addresses when you change ISPs, what BYO IP really requires, and when each choice makes sense.
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