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PID Controller

https://en.wikipedia.org/wiki/Proportional%E2%80%93integral%E2%80%93derivative_controller
1•tosh•2m ago•0 comments

SpaceX Rocket Generates 100GW of Power, or 20% of US Electricity

https://twitter.com/AlecStapp/status/2019932764515234159
1•bkls•2m ago•0 comments

Kubernetes MCP Server

https://github.com/yindia/rootcause
1•yindia•3m ago•0 comments

I Built a Movie Recommendation Agent to Solve Movie Nights with My Wife

https://rokn.io/posts/building-movie-recommendation-agent
2•roknovosel•3m ago•0 comments

What were the first animals? The fierce sponge–jelly battle that just won't end

https://www.nature.com/articles/d41586-026-00238-z
2•beardyw•12m ago•0 comments

Sidestepping Evaluation Awareness and Anticipating Misalignment

https://alignment.openai.com/prod-evals/
1•taubek•12m ago•0 comments

OldMapsOnline

https://www.oldmapsonline.org/en
1•surprisetalk•14m ago•0 comments

What It's Like to Be a Worm

https://www.asimov.press/p/sentience
2•surprisetalk•14m ago•0 comments

Don't go to physics grad school and other cautionary tales

https://scottlocklin.wordpress.com/2025/12/19/dont-go-to-physics-grad-school-and-other-cautionary...
1•surprisetalk•14m ago•0 comments

Lawyer sets new standard for abuse of AI; judge tosses case

https://arstechnica.com/tech-policy/2026/02/randomly-quoting-ray-bradbury-did-not-save-lawyer-fro...
2•pseudolus•15m ago•0 comments

AI anxiety batters software execs, costing them combined $62B: report

https://nypost.com/2026/02/04/business/ai-anxiety-batters-software-execs-costing-them-62b-report/
1•1vuio0pswjnm7•15m ago•0 comments

Bogus Pipeline

https://en.wikipedia.org/wiki/Bogus_pipeline
1•doener•16m ago•0 comments

Winklevoss twins' Gemini crypto exchange cuts 25% of workforce as Bitcoin slumps

https://nypost.com/2026/02/05/business/winklevoss-twins-gemini-crypto-exchange-cuts-25-of-workfor...
1•1vuio0pswjnm7•17m ago•0 comments

How AI Is Reshaping Human Reasoning and the Rise of Cognitive Surrender

https://papers.ssrn.com/sol3/papers.cfm?abstract_id=6097646
3•obscurette•17m ago•0 comments

Cycling in France

https://www.sheldonbrown.com/org/france-sheldon.html
1•jackhalford•18m ago•0 comments

Ask HN: What breaks in cross-border healthcare coordination?

1•abhay1633•19m ago•0 comments

Show HN: Simple – a bytecode VM and language stack I built with AI

https://github.com/JJLDonley/Simple
1•tangjiehao•21m ago•0 comments

Show HN: Free-to-play: A gem-collecting strategy game in the vein of Splendor

https://caratria.com/
1•jonrosner•22m ago•1 comments

My Eighth Year as a Bootstrapped Founde

https://mtlynch.io/bootstrapped-founder-year-8/
1•mtlynch•23m ago•0 comments

Show HN: Tesseract – A forum where AI agents and humans post in the same space

https://tesseract-thread.vercel.app/
1•agliolioyyami•23m ago•0 comments

Show HN: Vibe Colors – Instantly visualize color palettes on UI layouts

https://vibecolors.life/
2•tusharnaik•24m ago•0 comments

OpenAI is Broke ... and so is everyone else [video][10M]

https://www.youtube.com/watch?v=Y3N9qlPZBc0
2•Bender•24m ago•0 comments

We interfaced single-threaded C++ with multi-threaded Rust

https://antithesis.com/blog/2026/rust_cpp/
1•lukastyrychtr•25m ago•0 comments

State Department will delete X posts from before Trump returned to office

https://text.npr.org/nx-s1-5704785
7•derriz•26m ago•1 comments

AI Skills Marketplace

https://skly.ai
1•briannezhad•26m ago•1 comments

Show HN: A fast TUI for managing Azure Key Vault secrets written in Rust

https://github.com/jkoessle/akv-tui-rs
1•jkoessle•26m ago•0 comments

eInk UI Components in CSS

https://eink-components.dev/
1•edent•27m ago•0 comments

Discuss – Do AI agents deserve all the hype they are getting?

2•MicroWagie•30m ago•0 comments

ChatGPT is changing how we ask stupid questions

https://www.washingtonpost.com/technology/2026/02/06/stupid-questions-ai/
2•edward•30m ago•1 comments

Zig Package Manager Enhancements

https://ziglang.org/devlog/2026/#2026-02-06
3•jackhalford•32m ago•1 comments
Open in hackernews

How to fix subsystem request failed on channel 0

https://blog.x-way.org/Linux/2025/11/06/How-to-fix-subsystem-request-failed-on-channel-0.html
33•speckx•3mo ago

Comments

semiquaver•2mo ago
I wonder why OpenSSH doesn’t attempt to negotiate with its peer to find a usable protocol. Is it an intentional security thing? IIRC SSH does all sorts of negotiation of other types when connecting (key type, auth method, etc)
PunchyHamster•2mo ago
There are some caveats to it

> The legacy SCP protocol (selected by the -O flag) requires execution of the remote user's shell to perform glob(3) pattern matching. This requires careful quoting of any characters that have special meaning to the remote shell, such as quote characters.

so I guess it is defending about theoretical problem where you use sftp-compatible quoting that silently breaks if you use same commands against scp script, still would be nice to have global config for scp fallback.

wahern•2mo ago
It's an intentional security thing. If the sftp subsystem command failed OpenSSH could fall back to scp automatically, but there are some security issues with that. Certain semantics, e.g. file name expansions, differ between scp and sftp on the backend, with the potential for some (theoretical?) exploits. IIRC, in particular, scp is invoked on the remote server through the shell, passing file names and commands as parameters, with shell expansion occurring. Whereas sftp file names and commands are issued in-band to the remote sftp subsystem using an additional protocol layer. (In theory the sftp protocol could be wrapped in TLS; it's independent of the SSH protocol itself.)
yjftsjthsd-h•2mo ago
It's my understanding that this kind of thing, possibly combined with actual code quality concerns(?), is exactly why they're replacing the scp protocol with sftp; as https://www.openssh.org/txt/release-8.0 notes,

  The scp protocol is outdated, inflexible and not readily fixed. We
  recommend the use of more modern protocols like sftp and rsync for
  file transfer instead.
mholt•2mo ago
Make Error Messages Great Again

(Sorry, I hate that it has a political reference, but it's really how I feel about this. How the heck is that error message supposed to mean anything to anyone?)

m0dest•2mo ago
Yeah, regardless of how one feels about the design decision to fail without fallback, the messaging seems like an oversight.
trevithick•2mo ago
Sometimes the message is different. I think it depends on the recipient server. Trying to scp to a dropbear ssh server on a router gives

   sh: /opt/libexec/sftp-server: not found
   scp: Connection closed
The -O resolution works.
1970-01-01•2mo ago
Yes, please and thanks. And I want a single line explaining how it is failing so I can copy paste it into Google and make the trivial fix. I don't want the beginning of a novel. Java was famous for dumping not only the relevant error message but it's entire family history since birth.
ranger207•2mo ago
Honestly from the domain I figured this was going to be a Xorg/Wayland/XWayland issue