Network Isolation
Network isolation is a security and architectural concept that involves segmenting or separating network traffic and resources to limit communication between different parts of a system. It is commonly implemented through techniques like VLANs, subnets, firewalls, and microsegmentation to create logical or physical boundaries. This helps contain potential security breaches, reduce attack surfaces, and improve performance by minimizing unnecessary traffic.
Developers should learn and apply network isolation when building secure, scalable applications, especially in cloud environments, microservices architectures, or multi-tenant systems. It is crucial for compliance with regulations like GDPR or HIPAA, preventing lateral movement during cyber attacks, and isolating development, testing, and production environments to avoid disruptions.