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Go-away – Customizable, conditional challenges to incoming requests

Challenges Operators can choose to serve a challenge to incoming requests or client, depending on conditions or other rules. Challenges can be transparent (not shown to user, depends on backend or other logic), non-JavaScript (challenges common browser properties), or custom JavaScript (from Proof of Work to fingerprinting or Captcha is supported) The following examples are defined in policy snippets and are ready to use. Challenges can be redefined or new ones entirely can be added with diff

Nginx introduces native support for ACME protocol

We are very excited to announce the preview release of ACME support in NGINX. The implementation introduces a new module ngx_http_acme_module that provides built-in directives for requesting, installing, and renewing certificates directly from NGINX configuration. The ACME support leverages our NGINX-Rust SDK and is available as a Rust-based dynamic module for both NGINX Open Source users as well as enterprise NGINX One customers using NGINX Plus. NGINX’s native support for ACME brings a variet

Nginx Introduces Native Support for Acme Protocol

We are very excited to announce the preview release of ACME support in NGINX. The implementation introduces a new module ngx_http_acme_module that provides built-in directives for requesting, installing, and renewing certificates directly from NGINX configuration. The ACME support leverages our NGINX-Rust SDK and is available as a Rust-based dynamic module for both NGINX Open Source users as well as enterprise NGINX One customers using NGINX Plus. NGINX’s native support for ACME brings a variet

Cosmic Dawn: The Untold Story of the James Webb Space Telescope

Go behind the scenes with the dedicated NASA team and its partners to uncover the untold story of the James Webb Space Telescope. “Cosmic Dawn” unveils the immense challenges, groundbreaking innovations, and extraordinary efforts behind humanity’s most powerful eye on our universe, from its complex development to its nail-biting deployment a million miles away.

Smart Cameras Power a Robot Umpire at MLB All-Stars for the First Time. Here's How the Challenges Went

If umpires draw your ire for bad calls, you may soon have a new target: Major League Baseball used its ABS, or Automated Ball-Strike System, to call pitches at the July 15 All-Star Game for the first time. If trials this season go well, it will probably be adopted for the 2026 regular season. But challenges against the camera had an unusually high rate of success. The ABS uses Hawk-Eye cameras, a technology increasingly common in games with high-speed objects. The cameras judge how a ball trave

Last fifty years of integer linear programming: Recent practical advances

Mixed-integer linear programming (MILP) has become a cornerstone of operations research. This is driven by the enhanced efficiency of modern solvers, which can today find globally optimal solutions within seconds for problems that were out of reach a decade ago. The versatility of these solvers allowed successful applications in many areas, such as transportation, logistics, supply chain management, revenue management, finance, telecommunications, and manufacturing. Despite the impressive succes