Blog
News, guides, and product updates from Obelinf.
IP Fabric Alternatives in 2026: 5 Tools Compared
Comparing IP Fabric alternatives in 2026: Obelinf, Forward Networks, NetBrain, Auvik, and NetBox, across verification depth, deployment overhead, and pricing.
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Best NetMRI Alternatives in 2026: A Guide to Replacing Infoblox NetMRI
Infoblox NetMRI reaches end of life in April 2027. Compare the best NetMRI replacements, including NetBrain, Netpicker, rConfig, IP Fabric, and where Obelinf fits.
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Network Documentation for Small Business in 2026
A practical guide to documenting a small business network: what to record, which tools fit each size, and how to keep the records current without a full time admin.
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AWS VPC Design Best Practices: CIDR, Subnets, and Routing
Design an AWS VPC the right way: size the CIDR block, lay out public, private, and isolated subnets across availability zones, and wire route tables without common mistakes.
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Fiber Optic Cable Types Explained: OS1, OS2, OM3, OM4
Understand single mode and multimode fiber grades, what OS1, OS2, OM3, OM4, and OM5 mean, how far each reaches, and how to pick the right cable for a run.
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Kubernetes Network Policies Explained with Examples
Learn how Kubernetes NetworkPolicy objects work, why default deny matters, how ingress and egress selectors combine, and which CNI plugins actually enforce them.
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What Is a VLAN? A Plain Explanation for Beginners
A clear beginner guide to VLANs: what they are, why networks use them, how 802.1Q tagging and trunk ports work, and how devices on different VLANs talk to each other.
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Terraform AWS VPC IPAM Tutorial
Create an AWS VPC IPAM pool with Terraform, provision address space, and allocate a VPC CIDR from the pool instead of hard coding each VPC range.
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Terraform CIDR Planning with Subnet Examples
Use Terraform cidrsubnet and cidrsubnets to divide a VPC range into stable subnet blocks, validate the result, and avoid renumbering deployed networks.
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Terraform CI/CD with GitHub Actions
Build a Terraform GitHub Actions workflow that validates pull requests, creates a reviewed plan, authenticates with AWS using OIDC, and applies after approval.
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Terraform GKE Networking with Secondary Ranges
Build a Google Cloud VPC and GKE Autopilot cluster with Terraform, reserve primary and secondary subnet ranges, and connect Pods and Services to named ranges.
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Test Terraform Network Modules with Mocks
Write Terraform tests for a reusable AWS VPC module, mock the provider to avoid cloud resources, and catch invalid CIDR plans before deployment.
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