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State of multi-player Wayland
I've been fascinated by the idea of attaching multiple mice to one computer, and then having multiple mouse cursors inside of one desktop environment!
New
The latest blog posts to take off on Hacker News. 3,021 posts.
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DMARC has been public since 2012 but most company domains still don't enforce it
DMARC has been public since 2012. We checked 67,336 domains: 68.4% still have no policy or one that does not enforce it.
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Bad Apple but It's Traceroute
This was unavoidable, given my post from the other day about how to make traceroute display (almost) arbitrary strings.
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Modern email can be built from borrowed parts
Let's design the successor to email on top of HTTP, fixing the design flaws SMTP has been dragging along for 40 years. Piece by piece. The goal is…
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Building on ATProto
If you prefer to receive all of my writing in your inbox, you can subscribe here. I strive to publish weekly, on Tuesday mornings.
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Self-host your mail server
Personal Blog of Christian Haschek
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GDID Windows – Cut the tracker that follows you even under VPN
The GDID helped catch a hacker despite his VPN. I set up a VM to see if it can be neutralized: what works, what doesn't, and the scripts to stop it from ...
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HomeLab #1: MikroTik as a Home Router
Proceed at your own risk! (... it's worth it)
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Bluesky Trademarks ATProto
Bluesky now owns the trademark for AT Protocol to shield the ecosystem and make sure it can be used as widely as possible.
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LLM Networking with MikroTik
I’ve been refraining from saying ‘vibe networking’ or ‘vibkrotik’ or some other abomination, but it is true - I have been using LLMs to setup a few networks these last few months, and things have generally gone over swimmingly.
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Mysteries of Telegram Data Centers (2022)
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…
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Measuring Input Latency on Linux: X11 vs. Wayland, VRR, and DXVK
I built a device to measure end-to-end input latency, then used it to find out what actually moves the needle.
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Mesh LLM: distributed AI computing on iroh
How Mesh LLM pools existing GPU resources across machines into a single OpenAI-compatible API, built on iroh.
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Networking and the Internet, from First Principles
How electricity, light, and radio move data across independently operated networks.
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Europe's company websites are mostly served by US vendors
Vendor attribution study of 19,450 European company websites. Cloudflare is the largest internet-facing infrastructure vendor in every one of seven EU markets.
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NSA and IETF: Fairness
Secret NSA documents showed that NSA pushed DES in the 1970s to "drive out competitors" while knowing that DES was "weak enough" to break; meanwhile NSA publicly claimed that it would use DES . NSA used export-law exceptions in the 1990s to entrench RC4 and RSA-512, causing security problems for decades . NSA in the…
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Verizon is about to break our Gizmo watches
EDIT 2026-07-08: Gizmohub, despite the announcements, did not stop working on the 7th. Instead, a Verizon tech called me, and told me that they were not going to take Gizmohub down until they'd resolved these issues. They also walked me through getting set up, including getting me the 2FA code that was not coming…
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Why Switzerland has 25 gbit internet and America doesn't
The Free Market Lie: Why Switzerland Has 25 Gbit Internet and America Doesn't
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How We Made IPFS Content Publishing 10x Faster
How a statistical approach cut IPFS content publishing times by over one order of magnitude.
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Rayfish, Peer-to-peer mesh VPN with no server to trust
Rayfish is a peer-to-peer mesh VPN. Connect your devices by cryptographic identity. No port forwarding, no hosted server to trust. Share a code, and you're on the same encrypted LAN.
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We moved our Bluesky data to Eurosky
Our presence in the ATmosphere – Bluesky’s protocol – is no longer dependent on the platform’s standard infrastructure. Instead, our data now runs on Eurosky’s Personal Data Server (PDS).
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A native graphical shell for SSH
Marcus Lewis
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Rocketlab acquires Iridium
Unites Rocket Lab's leading launch and satellite manufacturing capabilities with Iridium's global network, spectrum, and experience to unlock critical space applications. Adds material revenue scale and is significantly accretive to Rocket Lab's cash flow generation and profitability.
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Choosing a Public DNS Resolver
Compare 30 global public DNS resolvers by privacy, filtering, DNSSEC, DoH, DoT, DoQ, IPv6, and jurisdiction, and benchmark DoH speed from your browser.
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Framework's 10G Ethernet module exposes USB-C's complexity
I've been following WisdPi's development of various 5 Gbps and 10 Gbps Ethernet adapters for the past couple years. They use newer Realtek Ethernet chips, which sometimes have performance quirks—most frequently encountered under Linux. In today's video, I tested the new WisdPi 10G Ethernet Expansion Card for Framework…
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We’re making Bunny DNS free
Your DNS bill shouldn't scale with your traffic. So we removed query fees from Bunny DNS entirely. No per-request billing and no query limits.
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Nearly half of LG smart TV apps contain residential proxy SDKs
Spur scanned 6,038 LG and Samsung smart TV apps and found 2,058 with residential proxy SDKs, exposing privacy and home network risks.
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Google Hits 50% IPv6
IPv6 has reached a major milestone, with around half of Google’s users now accessing its services over IPv6.
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Epoll vs. io_uring in Linux
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…