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RFC 8594: The Sunset HTTP Header Field (2019)

news.ycombinator.com Unknown 2025-10-20 07:35:22

Internet Engineering Task Force (IETF) E. Wilde Request for Comments: 8594 May 2019 Category: Informational ISSN: 2070-1721 The Sunset HTTP Header Field Abstract This specification defines the Sunset HTTP response header field, which indicates that a URI is likely to become unresponsive at a specified point in the future. It also defines a sunset link relation type that allows linking to resources providing information about an upcoming resource or service sunset. Status of This Memo This docume

Topics: header information resource scope sunset
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RFC 8594: The Sunset HTTP Header Field

news.ycombinator.com Unknown 2025-10-20 12:35:22

Internet Engineering Task Force (IETF) E. Wilde Request for Comments: 8594 May 2019 Category: Informational ISSN: 2070-1721 The Sunset HTTP Header Field Abstract This specification defines the Sunset HTTP response header field, which indicates that a URI is likely to become unresponsive at a specified point in the future. It also defines a sunset link relation type that allows linking to resources providing information about an upcoming resource or service sunset. Status of This Memo This docume

Topics: header information resource scope sunset
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What is X-Forwarded-For and when can you trust it? (2024)

news.ycombinator.com Unknown 2025-12-17 08:18:06

The X-Forwarded-For (XFF) HTTP header provides crucial insight into the origin of web requests. The header works as a mechanism for conveying the original source IP addresses of clients, and not just across one hop, but through chains of multiple intermediaries. This list of IPv4 and IPv6 addresses is helpful to understand where requests have really come from in scenarios where they traverse several servers, proxies, or load balancers. A typical HTTP request goes on a bit of a journey, traversi

Topics: address client forwarded header ip
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Reverse Proxy Deep Dive: Why HTTP Parsing at the Edge Is Harder Than It Looks

news.ycombinator.com Mitendra Mahto 2025-12-31 02:47:33

In Part 1 of this series, we explored a high-level overview of reverse proxies and dived deep into connection management. This post shifts our focus to the intricate world of HTTP handling within a reverse proxy. Deep Dive into HTTP Handling At a high level, the HTTP workflow from a proxy’s perspective might seem straightforward: Receive the request from the client Parse and sanitize the request Uses different requst metadata (path, headers, cookies) to select an upstream host Manipulates the

Topics: headers http proxies proxy request
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Chrome's hidden X-Browser-Validation header reverse engineered

news.ycombinator.com Unknown 2026-01-14 18:00:10

Chrome X-Browser-Validation Header Reverse Engineering & Generator Chrome recently added a few new headers: "x-browser-channel": "stable", "x-browser-copyright": "Copyright 2025 Google LLC. All rights reserved.", "x-browser-validation": "6h3XF8YcD8syi2FF2BbuE2KllQo=", "x-browser-year": "2025" Apart from one of them, there isn’t much that’s interesting. They’re just bits of client specific information. However, base64 decoding x-browser-validation yields what appears to be a hash whose purpose

Topics: agent browser chrome header user
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HDD Clicker generates HDD clicking sounds, based on HDD Led activity

news.ycombinator.com Unknown 2026-01-17 03:31:46

Molex Harddisk Power connector HDD LED in header HDD LED out header 'External out' header to optionally connect additional speaker or higher current 5V visual indicator Power LED out header Programming header (do not use, reserved for factory/future updates of the attiny processor) Low volume 'modern IDE HDD mode' : a small sticker on the speaker directly : this dampens the sound, sounds like modern harddisk --> this option is now by default selected in the webshop. Medium volume 'LGR mod

Topics: hdd header led sound volume
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X-Clacks-Overhead

news.ycombinator.com Unknown 2026-01-26 17:14:19

About the Signal X-Clacks-Overhead is a non-standardised HTTP header based upon the fictional work of the late, great, Sir Terry Pratchett. In Terry Pratchett's science-fantasy Discworld series, "The Clacks" is a network infrastructure of Semaphore Towers, that operate in a similar fashion to telegraph - named "Clacks" because of the clicking sound the system makes as signals send. In Sir Terry's novel "Going Postal", the story explains that the inventor of the Clacks - a man named Robert Dea

Topics: clacks header pratchett sir terry
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Citrix warns of login issues after NetScaler auth bypass patch

bleepingcomputer.com Unknown 2026-02-06 22:19:05

Citrix warns that patching recently disclosed vulnerabilities that can be exploited to bypass authentication and launch denial-of-service attacks may also break login pages on NetScaler ADC and Gateway appliances. This happens because starting with NetScaler 14.1.47.46 and 13.1.59.19, the Content Security Policy (CSP) header, which mitigates risks associated with cross-site scripting (XSS), code injection, and other client-side attacks, is enabled by default. However, while it is designed to b

Topics: authentication csp header issue netscaler
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