Nginx ("engine x") is a high-performance HTTP and reverse proxy server, as well as an IMAP/POP3/SMTP proxy server. Nginx was developed by Igor Sysoev for Russia's second most visited Rambler.ru site, where it has been running for more than two and a half years. Igor releases the source code under a BSD-like license. Although still in beta, Nginx is already known for its stability, rich feature set, sample configuration files, and low system resource consumption.