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Networking & Internet
The most popular blog posts about networking & internet on Hacker News. 1,615 posts.
NSA and IETF: Can an attacker purchase standardization of weakened cryptography?
It's normal for post-quantum cryptography to be rolled out as an extra layer of security on top of traditional pre-quantum cryptography, rather than as a replacement .
IP addresses and routing
IP addresses & routing
Why offer an Onion Address rather than just encourage browsing-over-Tor?
There are a bunch of reasons to launch an onion site, and a bunch of benefits, all of which have provided value to platforms such as Facebook, the BBC or NYT Onions. The first benefits are authenti…
Secret Military Telephone Buttons
It's the first of the new year, which means we ought to do something momentous to mark the occasion, like a short piece about telephones. Why so much on telephones lately? I think I'm just a little burned out on software at the moment and I need a vacation before I'm excited to write about failed Microsoft ventures…
Simple Raspberry Pi Powered SMS Gateway
Personal Blog of Christian Haschek
μWWVB: A Tiny WWVB Station
μWWVB is a watch stand that automatically sets the time on atomic wristwatches where regular WWVB signal isn't available.
Pervasive Monitoring Is an Attack
That’s the title of RFC 7258 , also known as BCP 188 (where BCP stands for “Best Current Practice”); it represents Internet Engineering Task Force consensus on the fact that many powerful well-funded entities feel it is appropriate to monitor people’s use of the Net, without telling those people. The consensus is…
Noticing when an app is only hosted in us-east-1
Using latency measurements to infer when a globally used application is served only from us-east-1.
How to stop Time Warner Cable sucking at Youtube
Experience: Capita Technology · Education: Massachusetts Institute of Technology · Location: Australia · 500+ connections on LinkedIn. View Mitch Ribar’s profile on LinkedIn, a professional community of 1 billion members.
Microsoft mishandling example.com
TL;DR: Since at least February 2020, Microsoft's Autodiscover service has incorrectly routed the IANA-reserved example.com to Sumitomo Electric Industries' mail servers at sei.co.jp , potentially sending test credentials there.
GoDaddy's New "Selective DNS Blackouts" Policy
Now that GoDaddy is a near monopoly (larger than the next 8 closest registrar competitors combined 1 ), and just got bought out on July 1, 2011 2 , they have decided they can defy the sacred. Customers be damned.
How Does Bluesky Work?
One of the reasons I am enthusiastic about BlueSky is because of the way that it works. So in this post, I am going to lay out some of the design and the…
HTTP/1.1 just got a major update
These documents make the original specification for HTTP/1.1 obsolete . As a HTTP geek, this is a big deal.
WebDAV isn't dead yet
I should have titled this post “I hate S3”. 📢 What is the status quo? FTP is dead (yay), SFTP is too dependent on SSH and unix authentication. AWS made S3 pervasive and now every webapp that needs to store files assumes you’ll be able to connect it S3. This …
Game servers: UDP vs TCP
When writing networked games, the question of UDP vs TCP will eventually come up. Typically you will hear people say things like: “Unless you’re doing action games, you can use TCP̶…
Does Cloudflare’s 1.1.1.1 DNS Block Archive.is? (2019)
Short answer: no. Quite the opposite, actually — Archive.is is intentionally blocking 1.1.1.1 users. Here's why.
Reclaiming IPv4 Class E's 240.0.0.0/4
Ever since the supply of fresh IPv4 address blocks was depleted there has been a number of interesting market changes, mostly around the costs to either acquire or lease IPv4 address blocks. Since the demand for IPv4 addressing has not changed that much, prices have gone up, and more providers like AWS, Hetzner, OVH…
Linux maintains bugs: The real reason ifconfig on Linux is deprecated (2018)
In my third installment of FreeBSD vs Linux, I will discuss underlying reasons for why Linux moved away from ifconfig(8) to ip(8).
Freenode IRC operators now engaging in routine abuses of power
There have been several allegations of this since the handover of the Freenode infrastructure to its new custodians, but I can now provide a first-hand account of one incident — because I am the victim of it.
Why 451?
Today, the IESG approved publication of “An HTTP Status Code to Report Legal Obstacles”. It’ll be an RFC after some work by the RFC Editor and a few more process bits, but effectively you can start using it now.
Set up a cheap cloud hosted adblocker in an hour for $2.50 a month
👋 Linux commands, bash scripts, and tech pro-tips.
epoll: The API that powers the modern internet (2022)
Linux's epoll API solved the C10K problem, enabling fast and afforable Internet services.
DNSFS – Store files in others' DNS resolver caches
A while ago I did a blog post about how long DNS resolvers hold results in cache for, using RIPE Atlas probes testing against their default resolvers (in a lot of cases, the DNS cache on their modem/router).
Mastodon’s eternal September begins?
The fediverse is dealing with a huge wave of Twitter people bringing toxic ideas with them.
Hostnames
The idea is to come up with some kind of category, so that people have something to remember all the names by. Some categories: Geographical (countries, cities, parks, rivers, lakes, streets), entertainment (flintsones, simpsons, disney films, celebrities), companies (hotels, airports, local shops, restarants)…