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Dr. WiFi. Linux kernel hacker at Red Hat. Networking, XDP, etc. He/Him.

Burning CD's.
Millennial witchcraft.
😂

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@jpkolsen @borup @jchillerup @jpelckolsen @kramse @mshdk bare som referencepunkt: Jeg dækker en firlænget gård med tre Ubiquiti Unifi 6 LR - med OpenWrt selvfølgelig: https://openwrt.org/toh/ubiquiti/unifi_6_lr :)

Bortset fra et enkelt rum helt ude i den ene ende hvor jeg så har sat et ekstra AP op (et ældre Unifi AC Lite jeg havde liggende).

WiFiAnalyzer appen til Android (findes på F-droid) er i øvrigt god til at teste signalstyrke når du skal placere dem; og kan også give dig en kanal-oversigt så du kan undgå interferens med evt naboer...
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@mshdk @jpelckolsen @borup @jchillerup @jpkolsen @kramse Sandt, i teorien. I praksis vil være ret skeptisk over hvor stor en forskel det gør i en opsætning med to AP'er i et parcelhus. Moderne klienter er ret OK til selv at opdage når der er et andet AP med bedre signal og hoppe over. Og hvis en (typisk ældre) klient ikke gør det er chancen for at den understøtter de "roaming hints" der blev tilføjet i nyere WiFi-standarder heller ikke særlig stor. Så det eneste en controller kan gøre i så fald, er at sparke klienten af det ene AP og satse på at det så forbinder til det andet. Hvilket sagtens kan virke, men det kan også risikere at ødelægge forbindelsen helt for den klient...

Så altså, ja, central styring og WiFi-controllers er smarte, og det er en skam det ikke er bedre understøttet af OpenWrt out-of-the-box. Men i praksis i et to-AP setup derhjemme gør det næppe nogen stor forskel...
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@jpkolsen @mshdk @jpelckolsen @kramse @jchillerup @borup Lyder umiddelbart rimelig fornuftigt. Det mest besværlige er klart at trække kabler, alt andet kan man nemmere tweake senere. Så god ide at trække to ad gangen, og hvis du kan trække dem i rør så de er nemmere at skifte ud hvis det bliver nødvendigt er det en fordel (som @jchillerup også nævnte længere oppe i tråden).
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@jpkolsen @jpelckolsen @borup @mshdk @jchillerup @kramse man kan sagtens roame mellem AP'er med OpenWrt. Du skal bare manuelt konfigurere hvert AP; men det er en engangsting. Når bare alle AP'er er konfigureret til samme netværksnavn og kode, og er på samme netværk bagved, så klarer klienterne fint roaming.
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@mshdk @jpelckolsen @borup @jchillerup @jpkolsen @kramse enig, OpenWrt mangler en controller til central styring og konfiguration. Der er et par projekter der kan styre klienter (usteer og dawn), men det er ikke nok i sig selv (og de er i øvrigt også lidt langhårede at sætte op begge to).
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Wow, an exciting and unexpected honor seeing INVENTING THE RENAISSANCE on the awards l long list for best nonfiction long-form. It does indeed relate to SFF reflecting on the myth of dark & golden ages in fiction. (And quoting Firefly & Babylon 5 😉🚀)

https://www.bsfa.co.uk/bsfa-awards-longlist

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@grimalkina I've had too many conversations where pointing out that nearly half of women STEM grads have left those fields after a decade earns me a stock "well, we need to train more women for STEM careers then" and ... I'm like, my friend, my brother, you call yourself an engineer but I say "half of X falls unaccountably out the side of process Y after Z time", and your answer is "we need to shove more X in the front end?" If you said this in a meeting about making cat toys you'd be fired.

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@jpkolsen @jpelckolsen @kramse @jchillerup @mshdk @borup har altid bare købt de billigste kabler. Vær dog opmærksom på at der er forskel på Cat6 og Cat6a. Sidstnævnte er skærmet (sølvpapir rundt om trådene) og giver derfor bedre signal over lidt længere afstande. Mest relevant for 10g, men kan jo blive relevant at opgradere, og så ærgrer man sig over at have sparet 100 kr på kablet!

Ift AP'er har jeg aldrig set et kommercielt produkt der var værd at anbefale, så her er min eneste anbefaling at installere OpenWrt. Så skal man bare vælge noget der er understøttet; her er en liste: https://toh.openwrt.org/?view=normal - flere af Ubiquitis er på den og fungerer glimrende!
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Why there’s no European Google?
And why it is a good thing!

My answer to the European Commission "call for evidence on Open Source."

https://ploum.net/2026-01-22-why-no-european-google.html

link: gemini://ploum.net/2026-01-22-why-no-european-google.gmi

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In the early days of personal computing CPU bugs were so rare as to be newsworthy. The infamous Pentium FDIV bug is remembered by many, and even earlier CPUs had their own issues (the 6502 comes to mind). Nowadays they've become so common that I encounter them routinely while triaging crash reports sent from Firefox users. Given the nature of CPUs you might wonder how these bugs arise, how they manifest and what can and can't be done about them. 🧵 1/31

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Edited yesterday

Calling all the PhDs on the Fediverse to make monumental annoyances of themselves (and honestly, who better) ...

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RE: https://mstdn.social/@JugglingWithEggs/115932678575633726

Here's a thought... maybe constraining economic activity isn't so bad?

Perhaps... just a wild idea here... we're not just put on this planet to increase shareholder value and line the pockets of the rich.

What if we considered arranging society so that its primary function was to ensure the welfare of people -- all people -- and "economic activity" can take a backseat for a few generations and see how that works out.

What if we started from the idea that all people have inherent value regardless of how much wealth they have or create?

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@icing right, I do realise it would not be super portable across protocols (or OSes). So you're rate limiting the read()/write() socket calls and just letting the OS do its thing, essentially?
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@icing interesting! Do you do anything to limit the amount of buffering in the TCP stack when rate limiting (e.g., adjust the receive buffer size), and/or to pace out the traffic on send?
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So we've strayed a very long way from Nextcloud's task manager, but the older I get the more I see "Who does the dishes after the revolution?" as one of the first questions that should be asked in any progressive space. I've seen at permaculture camps where the men wonder off to form a drumming circle while the women set up the cooking rotas and compost station. I've seen it at the meetings where the men stand up and give inspiring speeches while the women organise drinks and take the minutes

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After spending far too much personal time this weekend playing with a little arm64 soc that is supposedly fully supported upstream, I'm thinking there would be a lot of value in a tool that would take a dtb file and give you a kernel config that had all the drivers needed enabled.

The device/bus topologies and dependencies on SoCs are really complex, and hunting down one by one what random driver is missing that is preventing some other driver to load can be a real time sink when just trying to get a kernel running. And starting from an old BSP config doesn't help much as the upstream drivers may be renamed or under a different config.

But it seems like having supported dtb compat strings in the CONFIG setting in the Kconfig files might be helpful to generate this.

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