Web Server Load Balancing with NGINX Plus

NGINX version 1.2.0 enables smooth transition to featured release

Open source developer NGINX, Inc. today announced the cutting-edge version of its widely deployed web server is now available for download. This milestone release version 1.2.0 is a culmination of NGINX’s annual development and extensive quality assurance cycle, led by the core engineering team and by the web server’s enthusiastic user community. NGINX 1.2.0 is the latest production-quality release of the stable branch, incorporating over 40 new features and over 100 bug fixes introduced since April 2011.

“This recent release concludes a significant phase of development. We have made tremendous progress, streamlined our development efforts as a company, and are excited to see a quickly growing number of companies using NGINX as a modern and extremely cost-effective solution for application routing and acceleration,” said Igor Sysoev, the author of NGINX web server and the founder of NGINX, Inc. “We will continue to work on a variety of extensions based on feedback from our extraordinary user community.”

The second most popular web server for active sites on the Internet, NGINX (“engine x”) has grown its market share of enabled domains 200% since April 2011. Successful companies such as Pinterest, Instagram, CloudFlare, Airbnb, WordPress, GitHub, SoundCloud, Zynga, Eventbrite, OMGPOP, ModCloth, Heroku, RightScale, Engine Yard and many others rely on NGINX to build highly valued online services.

Underscoring its expanding acceptance as mainstream web infrastructure software, version 1.2.0 reflects NGINX’s focus on performance, scalability, reliability and security. In addition to reinforcing software development and quality control processes, the company has launched an online code browser and a bug-tracking system for the users of NGINX, and has devoted increased resources to the ongoing improvement of the documentation.

Main highlights of version 1.2.0 include:

  • HTTP Proxy
    • Re-use of keepalive connections to upstream servers
    • Consolidation of multiple simultaneous requests to upstream servers (“cache locks”)
    • Flexible configuration options for proxy redirects, header and cookie manipulation
    • Improved load balancing with synchronous healthchecks
    • Extended DNS resolver configuration
  • Security
    • HTTP byte-range limits
    • Extended configuration for connection and request throttling
    • Additional file system security controls
  • Performance
    • PCRE JIT optimized regular expressions
    • Reduced memory consumption with long-lived and TLS/SSL connections
    • Improved handling of asynchronous disk and network I/O
    • Optimized management of cache metadata

Since its inception in 2002, NGINX has become the web server software of choice across virtually all market segments, now serving over 25% of the top 1,000 websites, more than 10% of all websites on the Internet, and 70 million of websites overall.

NGINX is a high-performance, high-concurrency, edge web server excelling at Layer 7 acceleration and security tasks – concurrency offload with reverse proxying, load balancing and caching; application request routing; SSL termination; bandwidth, connection and request throttling; content filtering and compression; offloading different types of static content; and more.

NGINX’s asynchronous, non-blocking, modular architecture and its pragmatic and predictable utilization of system and user memory and CPU can serve continuously increasing workloads, enabling performance and non-linear scalability while minimizing associated infrastructure costs. Its compact memory footprint makes NGINX an excellent choice for a virtualized environment, and with the features like non-stop HTTP processing and live binary upgrades, NGINX is ideally suited for mission-critical applications.

To download NGINX, please visit the NGINX community website.


Run by the busiest websites on the Internet, NGINX enables companies to dynamically adjust their infrastructure to the increasing demand for a faster web experience, without incurring unnecessary costs in capital investments or time. In almost 10 years of its history, NGINX has become flexible and ultimately scalable open source software, which includes a high performance, high concurrency edge web server for static and dynamic content, Layer 7 load balancing, reverse proxy for HTTP, SMTP, IMAP and POP3, caching engine and SSL termination. In July 2011, a commercial arm, NGINX, Inc., was founded to facilitate the development of NGINX. For more information, please visit


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