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The most popular blog posts about networking & internet on Hacker News. 3,019 posts.
Motivation Despite using a FTTH internet connection since 2014, aside from the one fiber uplink, I had always used network gear with 1 Gbit/s links over regular old rj45 cat5(e) cables. I liked the simplicity and uniformity of that setup, but decided it’s time to add at least one fiber connection, to get rid of a…
Telegram claims to have 5 data centers (DCs), referred to as DC1~5 in Telegram’s code and documentation. Among them, DC1 and DC3 are located in Miami, USA; DC2 and DC4 are in Amsterdam, Netherlands; and DC5 is in Singapore. Each account is associated with a DC upon registration and does not change with the…
Understand better how HTTP works in each version.
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The Dunant submarine cable system, crossing the Atlantic Ocean between Virginia Beach in the U.S. and Saint-Hilaire-de-Riez on the French Atlantic coast, has been deployed and tested and is now ready for service.
Basically: I'm finding it impossible to reliably convince Google that email from my employees, to my employees, is not spam. I run my own mail server, but most of my employees use Gmail. So I have forwarding set up: employee@dnalounge.com simply forwards to employee@gmail.com. When sending mail using their Gmail…
Experiences with the Matrix protocol, Matrix Synapse server, bridges, and Element mobile apps.
This specification defines the QUERY method for HTTP. A QUERY requests that the request target process the enclosed content in a safe and idempotent manner and then respond with the result of that processing. This is similar to POST requests but can be automatically repeated or restarted without concern for partial…
You might have heard that a few days ago, Juniper Systems announced the discovery of “unauthorized code” in the ScreenOS software that underlies the NetScreen line of devices. As a resu…
[Update] 2018-09-05 11:00 GMT+8, with the generous help from the AS64073, 103.193.137.211 has been promptly suspended and is no longer a threat. Overview MikroTik is a Latvian company founded in 1996 to develop routers and wireless ISP systems. MikroTik now provides hardware and software for
One of the best ways to find ways to improve performance, we’ve found, is to work closely with our customers. We love shared troubleshooting sessions with their own engineering teams to find and eliminate bottlenecks.
Back in November, T-Mobile announced a new service for its mobile customers called Binge On, in which video streams from certain websites don’t count against customers’ data caps.[fn]To be fair, T-Mobile’s plans don’t have traditional data caps—they just slow down to “2G” speeds once customers...
First, I want to tell you how exactly I got to this point and why I started researching different options for handling asynchronous I/O on Linux… Last year, my students and I built a reverse proxy server called TinyGate. It was super simple, worker-based, and it basically worked well. Of course, I didn’t expect it to…
Update: This article was discussed on Hackernews Much has been written and a lot of analysis performed on the global BGP table over the years, a significant portion by the inimitable Geoff Huston.
This section is an introduction to TCP/IP programming using a sockets API. (Sockets can also be used to work with other network protocols, such as IPX/SPX and Appletalk, but that is beyond the scope of this document.) The standard socket API was originally developed in the Unix world, but has been ported to OS/400 as…
Celebrate SFP Liberation Day with Ubiquiti’s new SFP Wizard, the $49 portable tool that tests and programs any SFP or QSFP module in seconds. Enjoy up to 1000% off Ubiquiti SFPs and unlock true universal compatibility across every switch and network.
FOSS and life. Kushal Das talks here.
Let me tell you a story on how a subdomain of mine managed to serve 390,000+ PDF books without any of my servers being compromised.
Like most people, we at EFF are horrified by Russia’s invasion of Ukraine. Also like most people, we are not experts on military strategy or international diplomacy. But we do have some expertise with the internet and civil liberties, which is why we are deeply concerned that governments around the...
A field guide to VPNs, proxies, and traffic relaying
a post going over 4 exploits for CVE-2024-20017, a remotely exploitable buffer overflow in a component of the MediaTek MT7622 SDK.
Matrix, the open protocol for secure decentralised communications
Elon Musk laid off about half of Twitter this morning. There are many terrible stories emerging about how this went down, but one that particularly struck me was that he …
Earlier this month, I came back around to seriously considering an attempt at bitsquatting. While the prior link goes into great depth on the topic, I will attempt to give a very high level overview here: If this sort of thing interests you: I tend to do stuff like this weekly. Give me a follow @_mattata
We’re delighted to announce the release of mitmproxy 7, a free and open source interactive HTTPS proxy. This release is all about our new proxy core, which bring substantial improvements across the board and represents a massive milestone for the project.
We were given the task to stream the FIFA 14 World Cup and I think this was an experience worth sharing. This is a quick overview about: the architecture, the components, the pain, the learning, th…
