Extranet
An extranet is a private network that uses internet protocols and public telecommunication systems to securely share part of a business's information or operations with suppliers, vendors, partners, customers, or other businesses. It extends an organization's intranet to authorized external users, enabling controlled collaboration and data exchange. Extranets typically include features like authentication, encryption, and access controls to ensure security and privacy.
Developers should learn about extranets when building systems that require secure, external-facing portals for business-to-business (B2B) interactions, such as supply chain management, partner portals, or customer support platforms. They are essential for scenarios where organizations need to share sensitive data or workflows with trusted external entities while maintaining security and access control, often using technologies like VPNs, web applications, or APIs.