Answer
Domain sockets provide fast interprocess communication with lower latency than TCP. Often used between Nginx and Node.
Quick Answer
Unix domain sockets are IPC (Inter-Process Communication) channels using the local filesystem instead of TCP — no network stack overhead, no port allocation, faster than localhost TCP. Use them when Node.js and a database/redis run on the same machine, or when communicating between nginx and Node.js — measurably lower latency and higher throughput.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ