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Topics /
Networking & Internet
The most popular blog posts about networking & internet on Hacker News. 3,019 posts.
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IP over Lasers
Mike Kohn's music, software, and electronics projects.
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Do we really need a new BGP?
Guest post: BGP gets a bad rap from some but maybe the problem is with people not the protocol.
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Wireless attacks on aircraft instrument landing systems
Wireless attacks on aircraft instrument landing systems Sathaye et al., USENIX Security Symposium 2019 It’s been a while since we last looked at security attacks against connected real-world entiti…
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From Reddit to Pornhub, Websites Slow Down for Net Neutrality on September 10
You know the net neutrality conversation is breaking new ground when even the porn sites are weighing in. And that's just what we're seeing: Major adult platforms Pornhub and Redtube are joining an online protest on September 10, calling for stronger protections for net neutrality. They’re teaming...
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Why updating DNS is slow
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Would we still create Nebula today?
Spoiler: Yes. (But the "why" matters. A lot.)
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Cloudflare AKE cuts origin HelloRetryRequests from 52% to 3.7%
Automatic Key Exchange probes TLS 1.3-capable customer origins to learn which key agreement algorithms they support. We then lead with the most secure algorithm when connecting to the origin, preferring post-quantum connections wherever the origin supports it.
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Configuring Split Horizon DNS with Pi-Hole and Tailscale
Post describing how I've configured pihole to return different results to clients on my tailnet than those on the LAN.
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What happened on the Internet during the Facebook outage
Today, we're going to show you how the Facebook and affiliate sites downtime affected us, and what we can see in our data.
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Andromeda 2.1 reduces GCP’s intra-zone latency by 40%
The latest version of Andromeda reduces network latency between Compute Engine VMs by 40% over Andromeda 2.0 and by nearly a factor of 8 since we first launched Andromeda in 2014.
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The History of Usenet and FidoNet
Between roughly 1975 and 1995, access to computers accelerated much more quickly than access to computer networks. First in the United States, and then in other wealthy countries, computers became …
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Introducing the Cloudflare Onion Service
Two years ago this week Cloudflare introduced Opportunistic Encryption, a feature that provided additional security and performance benefits to websites that had not yet moved to HTTPS.
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Globally Distributed Elixir over Tailscale
The result of my exploration of Elixir clustering and automating global network discovery and connection over Tailscale.
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Searching for "semicolon injection" bugs in embedded Linux devices
Introduction I recently bought a D-Link DCS-2121 surveillance camera. This is good stuff: Megapixel camera + microphone + speaker WiFi,...
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Incident report: Spotify outage on March 8
On March 8, we experienced a global outage triggered by issues in a cloud-hosted service discovery system used at Spotify. We were made aware of issues with login at 18:12 UTC / 13:12 ET and started implementing fixes to critical systems at 18:39 UTC / 13:39 ET. This outage affected our users and we apologize for the…
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IP Addressing in 2021
What can IPv4 and IPv6 addressing in 2021 tell us about the changing nature of the network?
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Each socket should have two file descriptors
What if, instead of running a process-data program on this machine, we want to run it on another machine? No problem. We make a TCP connection to a process-data server on the remote machine. On the local machine, we have generate-data writing to the TCP connection, and consume-data reading from the TCP connection…
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Rayfish, Peer-to-peer mesh VPN with no server to trust
Rayfish is a peer-to-peer mesh VPN. Connect your devices by cryptographic identity. No port forwarding, no hosted server to trust. Share a code, and you're on the same encrypted LAN.
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Vector is now called Riot
Three months ago we launched the public beta of Vector at the electric atmosphere of the Decentralized Web Summit, bringing our…
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Splitting the Ping
Ping is one of the fundamental pillars of networking. It’s simple, universally supported, and is normally one of the few things that is shipped with all network stacks.
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Navigating Starlink's FCC Paper Trail
Guest Post: What I learned when I figured out how to navigate FCC filings.
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Tailscale 4via6 – Connect Edge Deployments at Scale
In this post, we’re highlighting 4via6 subnet routing — a powerful way to extend Tailscale’s mesh across entire edge or customer networks. It’s ideal for scenarios where traditional VPNs struggle, like fleets of robots, sensors, or isolated cloud environments.
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HTTP/2 interop pains
At around 06:49 CEST on the morning of August 27 2014, Google deployed an HTTP/2 draft-14 implementation on their front-end servers that handle logins to Google accounts (and possibly others). Those at least take care of all the various login stuff you do with Google, G+, gmail, etc. The little problem with that was…