What is a Gateway?
A gateway is a network device or node that serves as an entry point between two different networks, translating protocols and routing traffic to enable communication between them.
How Does Gateway Work?
In networking, a gateway connects networks that may use different protocols, data formats, or architectures. The most familiar example is a home router, which acts as a gateway between your local network and the internet. In web hosting environments, gateways handle routing between public internet traffic and internal server networks, often incorporating firewall and load balancing functionality.
API gateways are a specialized type of gateway commonly used in modern web application architectures. They serve as a single entry point for client requests, routing them to the appropriate backend microservices, handling authentication, rate limiting, and request transformation. Understanding how gateways function is important for configuring hosting environments and troubleshooting connectivity issues.