Azure Hub

A collection of tools for Azure administrators and developers: IP lookups, RBAC calculators, subnet planning, and tenant discovery.

Live site: azurehub.org

Features

• IP Lookup - Check if an IP belongs to Azure and which services use it
• Service Tags - Browse Azure service tags and their IP ranges
• Tenant Discovery - Look up Entra ID tenant information by domain
• Subnet Calculator - Plan VNet subnets with visual splitting and export to Excel/CSV
• RBAC Calculator - Find least-privilege Azure roles for required permissions
• Entra ID Roles - Analyze Entra ID administrative role permissions
• Custom Role Creator - Build custom RBAC role definitions

Running Locally

git clone https://github.com/yourusername/azure-hub.git
cd azure-hub
npm install
npm run update-ip-data
npm run update-rbac-data
npm run dev

Open http://localhost:3000

Optional: Entra ID Features

Tenant Lookup requires an Azure App Registration with:

• User.Read.All or Directory.Read.All (Microsoft Graph)

Entra ID Roles requires:

• RoleManagement.Read.Directory (Microsoft Graph)

Add credentials to .env.local:

AZURE_TENANT_ID=your-tenant-id
AZURE_CLIENT_ID=your-client-id
AZURE_CLIENT_SECRET=your-client-secret

Then run: npm run fetch-entraid-roles

Commands

• npm run dev - Development server
• npm run build - Production build
• npm run update-ip-data - Refresh Azure IP ranges
• npm run update-rbac-data - Refresh RBAC data
• npm run fetch-entraid-roles - Fetch Entra ID roles (requires credentials)

Tech Stack

Next.js 15, React 19, TypeScript, Tailwind CSS

Data Sources

• Azure IP ranges from Microsoft Download Center
• RBAC definitions via Azure CLI
• Entra ID roles via Microsoft Graph API

Disclaimer

This project is not affiliated with Microsoft Corporation. Azure, Entra ID, and Microsoft Graph are trademarks of Microsoft Corporation. Use at your own risk.

License

MIT