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
How to Document Power Sources, Panels, Breakers, and Feeds
A working procedure for building a power distribution record from source to rack: the order to create each record, the API calls, the fields that matter, and the checks that catch gaps.
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How to Draw a Power Topology Diagram from Utility to Server
Build a power topology diagram that stays readable: the node and edge schema, a TSV worklist, validation checks, and a Graphviz script that renders the same graph every time.
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How to Prove A/B Power Redundancy in Practice
Use rack, feed, panel, and device power records to prove A/B redundancy: the commands, the failure domain counts, the common false positives, and a worked example.
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What Is a Power Feed? Panels, Breakers, and Rack Power Explained
A plain explanation of power feeds, panels, breakers, circuits, and PDUs, with the fields to record, the capacity math, and a checklist you can use at the rack.
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ASN Planning for Multi-Site Networks
How to decide between one ASN and many, allocate prefixes that summarize cleanly, build the internal control plane, and verify a site's announcements before it leaks a route.
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How to Register an ASN: RIR Application Walkthrough
A step by step ASN application walkthrough for ARIN, RIPE NCC, APNIC, LACNIC, and AFRINIC: the dossier to build, the fees and turnaround, and the commands that prove the assignment is live.
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How to Track ASNs and RIRs in Your Inventory
The two records every network needs, the fields worth storing on each ASN, how to classify public and private numbers, and an audit pipeline you can re-run every quarter from the API.
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Committed Bandwidth vs Port Speed: Sizing and Auditing Circuit Capacity
Where to read committed bandwidth and port speed, how to measure the 95th percentile properly, a worked sizing example, and the API queries that flag capacity mismatches across a circuit inventory.
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EfficientIP Alternatives in 2026: 5 Tools Compared
Looking for EfficientIP alternatives in 2026? We compare Obelinf, Infoblox, BlueCat, and SolarWinds IPAM across DDI scope, deployment, pricing, and where each one actually fits.
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The Interface Inventory Audit: Finding Unused Ports, Orphaned IPs, and Bogus LAGs
A step by step interface audit you can run this week: the exact commands to pull from each switch, the API queries that find orphaned IPs, and how to read LAG flags that hide a broken bundle.
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Network Devices Explained: A List of Each One and What It Does
A network devices list with plain explanations: hubs, switches, routers, firewalls, access points, modems, load balancers, and the smaller parts that hold a network together.
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TCP/IP Explained: The Protocol Suite Behind Every Network
TCP/IP explained without jargon: how IP and TCP divide the work, the layers they map to, the protocols you meet every day, and how ports and the handshake fit together.
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