Hacker News with Generative AI: Networking

Doxx/Darkflare: DarkFlare TCPoCDN (TCP over CDN) (github.com/doxx)
D-Link says replace vulnerable routers or risk pwnage (theregister.com)
Owners of older models of D-Link VPN routers are being told to retire and replace their devices following the disclosure of a serious remote code execution (RCE) vulnerability.
Show HN: DDoS Photon Cannon – A Toy DDoS (codeberg.org)
DDoS Photon Cannon is a DDoS C&C server and bot program built for EDUCATIONAL PURPOSES ONLY. DDoS Photon Cannon is BARE BONES. It currently just sends HTTP GET requests to the target.
HPE Slingshot 400 Brings a Liquid Cooled 51.2T Switch and 400Gbps Networking (servethehome.com)
HPE is joining the 400Gbps generation for its Ethernet-based HPC interconnect. The new HPE Slingshot 400 not only increases the switch ASIC speed to 51.2Tbps, but it also will usher in significantly faster HPC interconnect speeds to keep pace with solutions like the NVIDIA Spectrum-X we showed in the 100K GPU xAI Colossus Cluster that are being used in AI clusters. We saw the new liquid-cooled switch on the SC24 show floor.
It's time to replace TCP in the datacenter (2023) (arxiv.org)
In spite of its long and successful history, TCP is a poor transport protocol for modern datacenters.
OpenWrt: Major Change Notice: New Package Manager (openwrt.org)
Losing NFS locks and the SunOS SIGLOST signal (utoronto.ca)
NFS is a network filesystem that famously also has a network locking protocol associated with it (or part of it, for NFSv4). This means that NFS has to consider the issue of the NFS client losing a lock that it thinks it holds.
IPv6 networks do apparently get probed (utoronto.ca)
For reasons beyond the scope of this entry, my home ISP recently changed my IPv6 assignment from a /64 to a (completely different) /56. Also for reasons beyond the scope of this entry, they left my old /64 routing to me along with my new /56, and when I noticed I left my old IPv6 address on my old /64 active, because why not.
Yggdrasil Network (yggdrasil-network.github.io)
Dagger 0.14 (dagger.io)
Today we are introducing version 0.14 of the Dagger Engine. In this release we introduce a powerful new way to authenticate against your existing Git infrastructure; an API to better integrate with test tooling; better OCI interop; a more flexible networking model; performance improvements; CPU metrics; public traces; and more.
Kyanos: eBPF-based network issue analysis tool (github.com/hengyoush)
Kyanos is an eBPF-based network issue analysis tool that enables you to capture network requests, such as HTTP, Redis, and MySQL requests.
Ask HN: Have you gotten anywhere cold messaging investors? (ycombinator.com)
As an unknown/nobody with a startup and a pitch, have you personally gotten anywhere cold messaging investors? Emailing them, messaging on LinkedIn, filling out website applications, etc.
A memory leak in Apple's Network Extension framework (obdev.at)
Is it normal for the Little Snitch Network Extension to consume Gigabytes of memory? No it isn’t.
Waiting for many things at once with io_uring (mazzo.li)
When doing systems programming we often need to wait for something to happen. Common examples might be waiting for some data to come through a socket or waiting on a lock. We also often want to wait on any of several conditions to become true. A web server might be handling many sockets at once, waiting for any number of them to become readable or writeable.
Windows Kills SMB Speeds When Using Tailscale (danthesalmon.com)
Yesterday when trying to transfer an ISO file from a TrueNAS SMB share, I was getting horrible transfer speeds.
Wi-Fi 8, which will trade speed for a more reliable experience (pcworld.com)
The next generation of Wi-Fi, Wi-Fi 8, is currently being developed behind closed doors. This time, the emphasis isn’t on pure speed, but instead on improving the user experience.
Who Is Eric Wayne?: An Unsolved IoT Mystery (the-brannons.com)
I was capturing traffic being sent to my Raspberry Pi today, attempting to debug a SIP problem. And I noticed a really weird packet from someone’s Google Home Max on my network:
Platforms Need New Building Blocks (junctionlabs.io)
Junction Labs’ mission is to empower platform builders with a service to service networking platform that bridges the developer-operator divide.
A new vulnerability on IPv6 parsing in linux (nist.gov)
In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrum_ipip: Fix memory leak when changing remote IPv6 address
Bluesky Directory (blueskydirectory.com)
Need more Blue friends?
Monitor WiFi with Raspberry Pi (netbeez.net)
Since our company’s inception, we have recognized the immense potential of the Raspberry Pi as a cost-effective and versatile platform for distributed network monitoring.
I sent an Ethernet packet (github.com/francisrstokes)
For as long as I've been making videos on the low byte productions youtube channel, I've wanted to make a series about "Networking from scratch", by which I mean building a full TCP/IP stack from the ground up on a microcontroller. It's been nearly 6 years now, and the past few days felt like as good a time as any to start.
Another simple online DNS query tool (nstoolbox.com)
Lookup DNS records for any domain.
Show HN: Dracan – Open-source, 1:1 proxy with simple filtering/validation config (github.com/Veinar)
Dracan is a specialized software solution designed to enhance filtering and validation capabilities within Kubernetes (k8s) environments. It aims to be lightweight middleware between ingress and applications.
Cisco scores a perfect CVSS 10 with critical flaw in its wireless system (theregister.com)
Cisco is issuing a critical alert notice about a flaw that makes its so-called Ultra-Reliable Wireless Backhaul systems easy to subvert.
Rock-Solid curl: commercial LTS releases of curl (haxx.se)
Ping Rate Clock (github.com/turingbirds)
Are you ever in a video call, when the other party suddenly freezes mid-sentence, leaving you wondering after a few seconds of silence: is it my connection that's having issues, or theirs?
Traceroute Isn't Real (gekk.info)
There is no such thing as traceroute.
Linux 6.13 to Drop Fieldbus Just Five Years After Being Merged (phoronix.com)
Merged back in 2019 was the Fieldbus subsystem as a set of network protocols for real-time distributed control of automated industrial systems. But now five years later, Fieldbus is being removed from the mainline Linux kernel since the code hasn't been maintained.
The BPF instruction set architecture is now RFC 9669 (lwn.net)
After a couple of years of effort, the BPF instruction set architecture has been accepted as RFC 9669, giving it a standard outside of the in-kernel implementation.