Every blog post that took off on Hacker News, ranked by the votes of its best submission. 3,021 posts.
At 01:02 GMT on September 2 a cross band FM amateur radio repeater with a downlink on 437.800 MHz was activated on the International Space Statio. The Amateur Radio on the International Space Stati…
This post ended up being incredibly long comprehensive. I’m afraid that many people won’t read enough to get everything that’s important, so here are the key points:
Internally our DDoS mitigation team is sometimes called "the packet droppers". When other teams build exciting products to do smart things with the traffic that passed through our network, we take joy in discovering novel ways of discarding it.
On 11th February, Let’s Encrypt will be rolling out a change to the certificates they issue to servers by default. Although there is generally nothing that Prosody operators need to do, servers using the new certificates may experience problems connecting to some other XMPP servers on the network.
INTRO As soon as the summer sun returns to Belgium, there is a natural human migration from Francophone Wallonia to the west coast sea in the Flemish part of the country. Here, à la mer du Nord, pe…
In this article we use data from RIPE Atlas probes to investigate the usage of 240/4, a block of IPv4 addresses 'reserved for future use', formally known as Class E in the wild.
Matrix, the open protocol for secure decentralised communications
*This post was originally published by Mike McCue.
We can never know for sure because we don't have a comprehensive list of all the data. But what can we say probabilistically? Restating it like so:
Two summers ago, with a seemed-big-at-the-time network of 28 datacenters, not long after introducing Medellin, CloudFlare introduced support for WebSockets, initially for our Enterprise customers.
Late last month, Internet users across the eastern seaboard of the United States had trouble accessing popular websites, such as Reddit, Netflix, and the New York Times....
Cloudflare's cloudflared tunnels are commonly used to 'publish' a web server that runs behind a firewall (e.g. making the webserver accessible from the…
What the research is: A first-of-its-kind study that details the scalable design, software implementation, and operations of Facebook’s data center routing design, based on Border Gateway Protocol …
Firstyear's blog
Earlier this week, I was doing some work on AWS and wanted to know what IP addresses were being used. Luckily for me, AWS publishes this all here https://ip-ranges.amazonaws.com/ip-ranges.json. When you go through this list, you’ll quickly see that AWS has a massive asset
This post will probably only make sense to those deeply involved in Mastodon and the fediverse. So if that’s not your thing, or you’re not interested in issues…
In February, KrebsOnSecurity wrote about a novel cybercrime service that helped attackers intercept the one-time passwords (OTPs) that many websites require as a second authentication factor in addition to passwords. That service quickly went offline, but new research reveals a number of competitors have since…
Explore Capella blogs, case studies, and insights on SAR, space systems, and Earth intelligence.
We enable the world to secure the web. Burp Suite, the Web Security Academy, and world-leading research from PortSwigger — the AppSec community’s home.
A public and free DNS service for a better security and privacy
I started programming in the 1990s living above my parent's medical practice. We had 15 PCs for the business, and one for me. The standard OS was MS-DOS. The network started off using IPX over coax to a Novell Netware server, the fanciest software we ever owned. IPX was so much easier than TCP/IP. No DHCP and address…
Google Cloud Platform (GCP) now features a cutting-edge new congestion control algorithm, TCP BBR, which achieves higher bandwidths and lower latencies for internet traffic.
When evaluating networking for a host the focus is typically on latency, throughput or packets per second (pps) to see the maximum load a...
It's one of those anachronisms that is deeply embedded in modern technology. From cloud operator servers to embedded controllers in appliances, there must be uncountable devices that think they are connected to a TTY.
When I was working at AWS, around 2017 we started getting excited pitches from companies who wanted to be part of the 5G build-out, saying that obviously there’d be lots of opportunities for public-cloud providers. But I never walked away convinced. Either I didn’t believe the supposed customers really needed what 5G…
Guest Post: How to easily enable IPv6 support for apps without it.
