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The most popular blog posts about networking & internet on Hacker News. 3,019 posts.
Building a Cross-Browser, Cross-Platform, Real-Time Game Streaming Protocol
BUILDING FOR HUMANITY
Roughtime: a protocol for secure, auditable time synchronisation
Security protocols often assume an accurate, local clock (e.g. TLS, Kerberos, DNSSEC and more). It's a widely accepted assumption when designing protocols but, for a lot of people, it just isn't true. We find good evidence that at least 25% of all certificate errors in Chrome are due to a bad local clock.
Networked Physics in Virtual Reality
Recently, Oculus teamed up with developer Glenn Fiedler for research into networked physics in VR. Below is a guest post from Glenn detailing his research.
Computer Networking Introduction: Ethernet and IP – Heavily Illustrated (2021)
What is a LAN? What is a network segment? How are L1, L2, and L3 segments related? What does it take to send an IP packet from one host to another? What is the difference between LAN, VLAN, and VXLAN?
Cert Authorities Check for DNSSEC from Today
From 15 March 2026, CAs must validate DNSSEC on CAA lookups and ACME checks. I've run DNSSEC for 14 years; see if your registrar supports it.
Five years of IPv6: whither the next five?
There isn't one story to the IPv6 deployment timeline - it can be rapid or slow, bumpy or smooth - but it is 'up and to the right'.
Mirai Botnet Linked to Dyn DNS DDoS Attacks
Distributed Denial of Service (DDoS) attempts to make a machine or network unavailable by flooding it with overwhelming amounts of traffic.
The HTTP Query Method
This specification defines a new HTTP method, QUERY, as a safe, idempotent request method that can carry request content.
This is the mail system
This is how we tell hundreds of millions of computer users that something has gone wrong:
Modern Wardriving (2023)
Let’s start by defining the word Wardriving: it is the search for WIFI wireless networks from a vehicle equipped with a computer. This would be the classic definition. I define modern wardriving as the search for WIFI networks, Bluetooth devices … Continue reading →
Venezuela's Internet Crackdown Escalates into Regional Blackout
For the last month, Venezuela has been caught up in widespread protests against its government. The Maduro administration has responded by cracking down on what it claims as being foreign interference online. As that social unrest has escalated, the state's censorship has widened: from the removal...
16 Years with IPv6
Torbjörn Eklöv, Co-Founder and Owner of Interlan, was an early adopter of IPv6. He shares the benefits of IPv6 adoption and offers advice to anyone who wants to enable IPv6 in their network with a static configuration from an ISP.
SSH Keygen – RSA, DSA, Ecdsa, EdDSA
Comparing SSH keys: RSA, DSA, ECDSA, and Ed25519 explained, with a straight algorithm recommendation and the move from keys to certificates. Read on.
Decentralizing Distribution
Guardian Project has been awarded a grant from the Filecoin Foundation for the Decentralized Web (FFDW) to work on decentralizing veracity and distribution (...
Robust and efficient quantum-safe HTTPS
Today we're announcing a new program in Chrome to make HTTPS certificates secure against quantum computers. The Internet Engineering Task Force (IETF) recently created a…
VNC client running on a coffee machine
Published: 08-04-2021 | Author: Remy van Elst | Text only version of this article
The Backbone: A History of the Internet
This page provides a single entry point to all the posts in the story of how the world got online. Now available as a book, buy here. The Backbone: Introduction One System, Universal Service? The U…
Monitoring and Tuning the Linux Networking Stack: Sending Data
This post discusses monitoring and tuning the Linux networking stack in great detail with the focus on sending data.
Support for IPv6
You can now connect to Backblaze B2 Cloud Storage via IPv6. Here's the story of how we deployed it and why that matters for you.
Strange domain names that developers bought
Not every domain is serious business. Here's a few of the fun ones that we at Stack Overflow owned, as well as those owned by our community.
RFCs: Blueprints of the Internet
Think about it for a second: could the internet exist without standards and protocols? Of course not! Computers need shared rules and agreements to communicate with one another. Even human languages, like English, work much the same way. They function as a kind of communication protocol because we’ve all agreed on…