The latest blog posts to take off on Hacker News. 1,615 posts.
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…
In my third installment of FreeBSD vs Linux, I will discuss underlying reasons for why Linux moved away from ifconfig(8) to ip(8).
I am leery of jargon. I am as guilty of using it as the next engineer, but there comes a point where there are just too many precise, narrowly-understood terms polluting your vocabulary. The circle of people you can talk to shrinks until going to the store to buy milk feels like an exercise in speaking a foreign…
For the last couple of years, I captured many different network and upper-layer protocols and published the pcaps along with some information and Wireshark screenshots on this blog . However, it always takes me some time to find the correct pcap when I am searching for a concrete protocol example . There are way too…
I have finished my cruise now, which was mostly holiday, but also some work. I did some training for my mates (mainly in C coding) and we di...
Ethernet is everywhere, tens of thousands of hardware vendors speak and implement it. However almost every ethernet link has one number in common, the MTU:
The Problem Video playback looks better with a higher scan rate. A lot of content that was designed for TV (EG almost all historical documentaries) is going to be 25Hz interlaced (UK and Australia)…
Twitter is funding a team to decentralize social media. I think they should start with messaging.
We've all been there, right? You debug something, you try telnet to see if a port is open, and now you're stuck in a telnet session.
Today, I watched a SpaceX Falcon 9 rocket leave Cape Canaveral and deliver 60 small Starlink satellites to Low Earth Orbit (LEO) on the Starlink L3 mission.…
Now that wireguard will be part of the upcoming Linux 5.6 Kernel it’s time to see how to best integrate it with my Raspberry Pi based LTE-Router/Access Point Setup. What is my scenario? Raspberry Pi 3 with a LTE hat, using a public IP address. This will be the VPN server (called edgewalker in this post) An Android…
If you’re running a business online, few things can be as disruptive or destructive to your brand as someone stealing your company’s domain name and doing whatever they wish with it. Even so, most major Web site owners aren’t taking full advantage of the security tools available to protect their domains from being…
A classically trained sysadmin shouting into the void.
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Up until recently, it was a pain to defend againt WPA2 brute-force attacks by using a random 63-character password (the maximum in WPA-Personal ) mode). Thanks to Android 10 and iOS 11 supporting reading WiFi passwords from a QR code, this is finally a practical defense.
Investigating onboard flight entertainment APIs, flight telemetry, and Widevine-protected media.
A top executive at the nonprofit entity responsible for doling out chunks of Internet addresses to businesses and other organizations in Africa has resigned his post following accusations that he secretly operated several companies which sold tens of millions of dollars worth of the increasingly scarce resource to…
Yesterday I had the idea that it would be cool if I turned a Nintendo Switch (will be referred to as NX to avoid confusion as NX is the code name for the Nintendo Switch ) console into an actual network switch. I thought about it a bit and realized that it would be doable in hardware at least, since the NX docking…
Well, as of sometime on December 5th a huge number of the archivists that were scrambling to rescue archives from Yahoo Groups, had their {e-mail addresses} apparently banned so they can no longer…
On 26 Nov 2019 at 14:55 UTC, I logged into my server that hosts my website to perform a simple maintenance activity. Merely three minutes later, at 14:58 UTC, the domain name susam.in used to host this website was transferred to another registrant without any authorisation by me or without any notification sent to me…
Exactly 100% of everything on the Internet involves exchanging messages which represent items of interest to humans. These items can be classified into three baskets: One for “media” (images, sound, video), one for text (HTML, PDF, XML), and one for “objects” (chat messages, payments, love poems, order statuses). This…
Usenet—Netnews—was conceived almost exactly 40 years ago this month. To understand where it came from and why certain decisions were made the way they were, it’s important to understand the technological constraints of the time.
By bert hubert / bert@hubertnet.nl This post is an excerpt of a far longer post on Galileo, its structures and the cause of the outage. Here we’ll only focus on the outage - the potential underlying reasons behind it are described in the full article. Since the week-long outage in July I’ve been fascinated by Galileo…
