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Topics /
Networking & Internet
The most popular blog posts about networking & internet on Hacker News. 3,019 posts.
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Why federated protocols don't work (2016)
At Open Whisper Systems, we’ve been developing open source “consumer-facing” software for the past four years. We want to share some of the things we’ve learned while doing it. As a software developer, I envy writers, musicians, and filmmakers. Unlike software, when they create something, it is...
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CNAME Flattening: RFC-Compliant CNAMEs at a Domain's Root
This post is about a new feature we've been quietly rolling out over the last few months. Last week we began enabling it for everyone by default.
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SSH server 0-day exploit
SANS.edu Internet Storm Center. Today's Top Story: The Classics Return: Vulnerable E-Mail Scripts;
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RPKI – The required cryptographic upgrade to BGP routing
We have talked about the BGP Internet routing protocol before. We have talked about how we build a more resilient network and how we can see outages at a country-level via BGP. We have even talked about the network community that is vital to the operation of the global Internet.
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The problems with url shorteners
URL shortening services have been around for a number of years . Their original purpose was to prevent cumbersome URLs from getting fragmented by broken email clients that felt the need to wrap everything to an 80 column screen. Addendum: They're useful in print , too. But it's 2009 now, and this problem no longer…
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HTML5 video chat implemented in Webkit GTK
Let’s talk everything from 5G to IoT to digital transformation. Get our latest insights at the Ericsson blog.
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The IPv6 mess (2002)
Each computer on the Internet has its own public IPv4 address, similar to a phone number: for example, 131.193.178.181. The target of each packet of data is identified by a public IPv4 address.
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The New Normal: 200-400 Gbps DDoS Attacks
Over the past four years, KrebsOnSecurity has been targeted by countless denial-of-service attacks intended to knock it offline. Earlier this week, KrebsOnSecurity was hit by easily the most massive and intense such attack yet — a nearly 200 Gbps assault leveraging a simple attack method that industry experts say is…
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Facebook's DKIM RSA key should be crackable
If Facebook sends you a mail they will sign it using DKIM . Here are the headers from a mail I received the other day: DKIM-Signature: v=1...
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WireGuard for Windows Pre-Alpha Is Available
Users of kernels < 5.6 may also choose wireguard-lts or wireguard-dkms + linux-headers , depending on which kernel is used.
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Three locks for your SSH door
AIX provides the highest level of performance, security, and reliability of any UNIX operating system.
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Imminent Death of the Net Predicted due to RCF3484
Warning: the following is excessively technical, and is intended more for the sake of the next poor sod who types "vista dns round robin resolution" into Google than it is for my actual friends list. (Except for a few of you. And you know who you are.) Also, since I want this to be searchable on…
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Advanced SSH Techniques
At one site where I provide technical assistance, access to the network is all done via ssh over the Internet. However, one can't get access to the machines directly; one must first make an ssh connection to a gateway box I'll call martha. martha doesn't allow one to use regular passwords or keys, though. We're all…
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DIY: Cheap, ultra low-power radios that communicate over thousands of miles
QRSS is a term used in ham radio to mean "very slow speed morse code". QRPp means "using a very low power radio transmitter". What happens when you combine
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How decentralized is Bluesky really?
Recently due to various events (namely a lot of people getting off of X-Twitter), Bluesky has become a lot more popular, and excitement for its underlying protocol, ATProto , is growing. Since I worked on ActivityPub which connects together Mastodon , Sharkey , Peertube , GotoSocial , etc, etc, etc in the present-day…
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Overclocking SSL
(This is a write up of the talk that I gave at Velocity 2010 last Thursday. This is a joint work of myself, Nagendra Modadugu and Wan-Teh Chang.)
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MSNBOT must die
If you've suffered any problems accessing any of the sites, the databases, the CPAN mirror, etc from the CPAN Testers server last night, please direct your wrath at Microsoft. Last night the msnbot took out the CPAN Testers server with a dedicated denial of service attack. As a consequence measures are now being put…
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A Censorship-Resistant Web
Imagine someone put a document up at http://pentagonpapers.com/volumes/1.html that a) some people want to read and b) some people want to keep you from reading.