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Networking & Internet

The most popular blog posts about networking & internet on Hacker News. 1,615 posts.

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423

TLS 1.3 and Proxies

I'll generally ignore the internet froth in a given week as much as possible, but when Her Majesty's Government starts repeating misunderstandings about TLS 1.3 it is necessary to write something, if only to have a pointer ready for when people start citing it as evidence.

424

.localhost Domains

I’ve found a way to configure private, custom domains for web-apps I have running on my computer. So instead of having to remember and type “localhost:4333”, I can simply navigate to “appname.localhost”. I love it!

431

Server-sent events, WebSockets, and HTTP

The orange site is currently discussing an article about Server-Sent Events, especially as compared with WebSockets (and the emerging WebTransport). Both the article and discussion are well-informed, but I think they miss out on one aspect that has fairly deep implications.

443

HTTP/2 Continuation Flood: Technical Details

Preface In October 2023 I learned about HTTP/2 Rapid Reset attack, dubbed “the largest DDoS attack to date”. I didn’t have deep knowledge of HTTP/2 back then. I knew its basics like frames or HPACK but I was focusing more on HTTP/1.1 protocol and programming languages vulnerabilities. I decided to dedicate time to…

448

Grave flaws in BGP Error handling

Border Gateway Protocol is the de facto protocol that directs routing decisions between different ISP networks, and is generally known as the “glue” that holds the internet together. It’s safe to say that the internet we currently know would not function without working BGP implementations.