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Topics /
Networking & Internet
The most popular blog posts about networking & internet on Hacker News. 1,406 posts.
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Bitcoin – Potential Network Disruption on July 31st
Last updated: 2017/07/21 12:00 UTC . This page will be updated when new information becomes available. See the list of updates .
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WiFi signals can measure heart rate
Engineers prove their technique is effective even with the lowest-cost WiFi devices
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HTTP is obsolete. It's time for the Distributed Web (2015)
Early this year, the Internet Archive put out a call for a distributed web . We heard them loud and clear.
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Mozilla Re-Files Suit Against FCC to Protect Net Neutrality
This morning, the Federal Communications Commission officially published its order overturning net neutrality rules in the Federal Register. We had origina
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What came first: the CNAME or the A record?
A recent change to 1.1.1.1 accidentally altered the order of CNAME records in DNS responses, breaking resolution for some clients. This post explores the technical root cause, examines the source code of affected resolvers, and dives into the inherent ambiguities of the DNS RFCs.
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Is Gmail killing independent email?
People report that self-hosted emails always end up in Gmail spam. Is there anything Google can do about it?
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Tailscale Has Partnered with Mullvad
Since Tailscale was founded in 2019, customers have been forced to choose between either Tailscale or Mullvad without the ability for them to co-exist.
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1.1.1.1 outage explanation
Cloudflare is protected from attacks by the Gatebot DDoS mitigation pipeline. Gatebot performs hundreds of mitigations a day, shielding our infrastructure and our customers from L3 and L7 attacks.
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Internet protocols are changing
Guest Post: Learn about the significant recent changes being made to the core Internet protocols.
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Voice Calls: Secure, Crystal-Clear, AI-Powered
Introducing super-fast and secure AI-powered calls, and a nifty setting for video compression quality.
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HTTP headers we don't want
HTTP headers are an important way of controlling how caches and browsers process your web content. But many are used incorrectly or pointlessly, which adds overhead at a critical time in the loading of your page, and may not work as you intended.
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The Agent2Agent Protocol (A2A)
Explore A2A, Google's new open protocol empowering developers to build interoperable AI solutions.
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Looking back at how Signal works
In the midst of world-wide protests against racism and police brutality, a lot of people are becoming more immediately aware and concerned about the security of their data and online communication. We’ve gotten a lot of questions at Signal over the past week, so we wanted to briefly recap how it ...
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Attackers can decloak routing-based VPNs
We discovered a fundamental design problem in VPNs and we're calling it TunnelVision. This problem lets someone see what you're doing online, even if you think you're safely using a VPN.
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OpenSSH Post-Quantum Cryptography
OpenSSH post quantum cryptography
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HTTP/3 Is Fast
HTTP/3 promises speed and efficiency, but does it actually deliver? In our latest article, we put HTTP/3 to the test,comparing it against HTTP/2 in real-worl...
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AWS to begin charging for public IPv4 addresses
We are introducing a new charge for public IPv4 addresses. Effective February 1, 2024 there will be a charge of $0.005 per IP per hour for all public IPv4 addresses, whether attached to a service or not (there is already a charge for public IPv4 addresses you allocate in your account but don’t attach to […]
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Gitter now speaks Matrix
Matrix, the open protocol for secure decentralised communications
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The Mystery of the Slow Downloads
A few months ago, a complaint started popping up from users downloading or updating our apps: “Geez, your downloads are really slow!”
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TLS 1.3 approved
Search IETF mail list archives
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Chromium's Impact on Root DNS Traffic
Guest Post: With 70% of market share, Chromium has had a significant impact on the total root DNS traffic.
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Mozilla Thunderbird Beta now supports Matrix chat
Matrix, the open protocol for secure decentralised communications
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Geedge and MESA leak: Analyzing the great firewall’s largest document leak
The Great Firewall of China (GFW) experienced the largest leak of internal documents in its history on Thursday September 11, 2025. Over 500 GB of source code, work logs, and internal communication records were leaked, revealing details of the GFW's research, development, and operations.
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How Syria Turned Off the Internet
Today, 29 November 2012, between 1026 and 1028 (UTC), all traffic from Syria to the rest of the Internet stopped. At CloudFlare, we witnessed the drop off. We've spent the morning studying the situation to understand what happened.
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The FCC needs to stop 5G fast lanes
The FCC is set to vote on April 25 to restore its authority over the companies we pay to get online, and reinstate federal net neutrality protections that were jettisoned by the Trump administration in 2017. Net neutrality protections are supposed to ensure that we, not the internet service providers
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WhatsApp is blocking Telegram links
Xoilac TV - trang web phát sóng bóng đá trực tiếp không thu phí của người dùng hot nhất năm 2025. Đây cũng là một trong những kênh được yêu thích và có số
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