Unix Sockets
Unix Sockets, also known as Unix Domain Sockets (UDS), are a form of inter-process communication (IPC) mechanism that allows processes on the same Unix-like operating system to exchange data efficiently. They operate similarly to network sockets but use the filesystem as an address namespace, enabling communication without network overhead. This makes them ideal for high-performance, low-latency communication between local processes.
Developers should use Unix Sockets when building applications that require fast, secure communication between processes on the same machine, such as in microservices architectures, database connections (e.g., PostgreSQL), or system daemons. They are particularly useful in scenarios where network protocols like TCP/IP introduce unnecessary latency or security risks, as Unix Sockets bypass the network stack and can enforce file-based permissions for access control.