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
Best Network Documentation Tools in 2026
We compared six network documentation tools, from managed SaaS to self hosted, across deployment, features, pricing, and operational overhead to help you choose the right one in 2026.
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Hudu Alternatives in 2026: 5 Tools Compared
Looking for alternatives to Hudu in 2026? We compare Obelinf, IT Glue, ITFlow, NetBox, and phpIPAM across documentation scope, IPAM and DCIM depth, deployment, pricing, and when each tool makes sense for your team.
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Cross Connects Explained: Meet Me Rooms, Fiber, Lead Times, and Pricing
Learn how data center cross connects work, what happens in a meet me room, which fiber type to order, how long installation takes, and what it costs.
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How to Calculate Colocation Costs: A Practical Guide
Use this colocation cost calculator guide to estimate monthly rack, power, bandwidth, cross connect, remote hands, setup, and contract costs before choosing a facility.
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Data Center Capacity Math: kW per Square Foot vs kW per Rack
kW per square foot vs kW per rack: what each density metric measures, the floor per rack assumption that converts between them, and the worked math for planning a hall.
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Data Center Failover Testing: Power-Fail Drills and Safe Chaos Tests
How to run data center power fail drills and safe chaos tests, climbing from a single feed to a full building transfer, safely and with measurable results.
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Environmental Monitoring in Data Centers: Temperature, Humidity and Leak Detection
A practical guide to environmental monitoring in data centers: where to place temperature and humidity sensors, why dew point matters more than relative humidity, how water leak detection is zoned and tested, and how to alert on trends instead of single readings.
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Planned Maintenance Windows in Data Centers: Scheduling Around Risk
How to schedule data center maintenance windows around risk: redundancy limits, maintenance modes, business cycles, third party windows, and the change process and checklist that keep planned work safe.
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Backup Power in Data Centers: UPS, Generators, Fuel
How to size a data center UPS, load test diesel generators against NFPA 110, and plan fuel storage and refueling so backup power holds through the outages that matter.
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Data Center Power Pricing: Demand Charges and Overage
The real price of a data center watt: how energy, demand, and capacity charges stack up, which colocation pricing model hides costs, and what overage fees do to your bill.
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Direct to Chip vs Rear Door vs Immersion Cooling
How direct to chip, rear door, and immersion liquid cooling compare on density, PUE, cost, and retrofit fit, and how to choose between them for your data center.
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Retail vs Wholesale Colocation: How to Choose
Retail and wholesale colocation compared: pricing, space, contract terms, operations, and how to match the lease model to the size and stability of your workload.
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