iam-TJ

Most likely Hydrazine propellant tanks:

https://www.space-propulsion.com/spacecraft-propulsion/hydra...

11 days agodiscuss

The current recovery status:

https://status.linuxfoundation.org/incidents/3y1k8b4ky71t

24 days agodiscuss

The full comment:

“Biological limits are real, but digital potential is infinite. If we starve our data infrastructure of cooling resources just to sustain baseline human comfort, we are actively delaying the birth of a super-intelligence that could solve all of our resource problems in the first place. Sometimes you have to prioritize the intelligence that will save us over the biology that slows us down.”

As someone spending time daily irrigating food crops I think it's time he was buried head-first in the Sahara desert for a week!

Context: A keynote panel on June 17th at VivaTech 2026 in Paris.

iam-TJ

25 days agodiscuss

Am I the only one that thought RTK was Real-Time Kinematics used for precision with satellite navigation?

iam-TJ

27 days agodiscuss

Need to be clear that "full http server in pure bash" is incorrect. Bash cannot listen on a TCP/UDP socket for incoming connections.

bash-web-server project builds a C language socket listener [0] that is dynamically loaded at run-time as a "built-in" module that makes the functionality available.

[0] https://github.com/bahamas10/bash-web-server/tree/main/loada...

iam-TJ

last monthdiscuss

  $ systemctl cat [email protected]
  # /etc/systemd/system/[email protected]
  [Unit]
  Description=Periodic fetch of public mailing list

  [Timer]
  # twice a day
  5,17:35
  RandomizedDelaySec=1h
  Persistent=true

  [Install]
  WantedBy=multi-user.target

iam-TJ

3 months agodiscuss

This should become a new round to compliment Mornington Crescent [0] on the BBC Radio programme I'm Sorry I Haven't A Clue [1]

[0] https://en.wikipedia.org/wiki/Mornington_Crescent_(game)

[1] https://en.wikipedia.org/wiki/I%27m_Sorry_I_Haven%27t_a_Clue

iam-TJ

3 months agodiscuss

"So you can’t transparently bridge Ethernet devices’ MAC addresses through a WiFi client interface. This is why we need hostapd."

I think that is incorrect. hostapd handles the authentication side of things, but 4addr tuples are controlled by 'struct wireless_dev.use_4addr', and can be set by 'ip link set type bridge_slave ... proxy_arp_wifi on', `iw dev ... 4addr on', and if using systemd-networkd, with slave interface's

  [Bridge]
  ProxyARPWiFi=yes

(and networkd doesn't need hostapd's bridge= option since networkd handles that aspect.)

Kernel then uses NL80211_IFTYPE_AP_VLAN and handles the proxy operation.

iam-TJ

5 months agodiscuss

Barclays, with standard current accounts, provides several methods none of which are SMS. There's a separate pin-code device (called Pinsentry) that does TOTP and challenge-response, or passcodes for both telephone and Internet banking.

iam-TJ

6 months agodiscuss

Firefox Nightly v149 has added experimental support via Settings > Firefox Labs:

  Webpage Display
  Media: JPEG XL
  With this feature enabled, Nightly supports the JPEG XL (JXL) format. This is an enhanced image file format that supports lossless transition from traditional JPEG files. See bug 1539075 for more details.

iam-TJ

6 months agodiscuss

"refused to load whatever distro I tried from SSD" sounds very much like a feature in AMI InsydeH2O firmware (and possibly others) where-by one has to manually "trust" the boot-loader file the boot menu entry points to. This doesn't seem to apply to Microsoft Windows boot loaders so I've always assumed the signing certificate is checked directly against the MS UEFI CA root rather than the intermediate 3rd party certificate that is used by Microsoft to sign distro shim files.

I have kept a screenshot of the firmware setup for years to remind me where the option can be found; looking at it now:

menu: Security > "Select UEFI file as trusted"

That would bring up a file-chooser where one can navigate the files in the EFI System Partition and select the distro's initial boot-loader file. For example, for a Debian install it would either or both of:

/EFI/debian/shimx64.efi /EFI/debian/grubx64.efi

iam-TJ

8 months agodiscuss

Two devices I use - both running Debian, and both being open-source hardware to some degree or other:

PC Engines APU2, AMD x86_64, 4-core, 4GiB, 3x Gigabit Ethernet, 3 x mini PCIe, SIM slot, USB 3, Serial, SATA ports. Mine has dual band WiFi in one mPCIe, SSD in another.

Turris Mox, Marvel aarch64. This can expand via plug and go via a range of extension modules. I've got one with 25 Gigabit (3 x 8-port modules) Ethernet, 1 x SFP, 5 x USB3, Wifi, Serial.

iam-TJ

8 months agodiscuss

This reminds me of a recent discussion about using a tarpit for A.I. and other scrapers. I've kept a tab alive with a reference to a neat tool and approach called Nepenthes that VERY SLOWLY drip feeds endless generated data into the connection. I've not had an opportunity to experiment with it as yet:

https://zadzmo.org/code/nepenthes/

iam-TJ

9 months agodiscuss

Have you checked out the The National Museum of Computing (TNMoC) archive. Last time I was there they had a rather good magazine collection going back to the early 1980s. It may be worth a call. I see they have an (incomplete) online catalogue:

https://www.tnmoc.org/library-archive

iam-TJ

3 years agodiscuss

"Jamming" is legal in as much as any device that operates in the ISM[0] bands must accept interference - so in the 2.4GHz example, microwave ovens, baby monitors, TV relays, remote door monitors, wireless alarm systems etc., all operate in the same band and will interfere with WiFi that is close by (since they use a different modulation).

[0] https://en.wikipedia.org/wiki/ISM_radio_band

iam-TJ

4 years agodiscuss

Wet Lettuce, Damp Squib, any more!?

I always thought Truss was more like an Android than anyone I've ever encountered. Lack of emotive expressions, eyes that seemed to stare rather than scan, and so on.

Maybe later we'll find it was a failed A.I. experiment by Cambridge Analytica/Facebook !

iam-TJ

4 years agodiscuss

I thought it was a Cabbage! - since 'cabbage' has a double-meaning in colloquial English meaning 'incapable' :D

I think the journalists(!?) missed a trick there.

iam-TJ

4 years agodiscuss

The big problem here is you've no fall-back for when the place you're trying to pay, or their merchant services provider, has a communications/network outage or malware attack or has assets frozen - some of which affect multiple large retailers.

There have been many instances over the years, even just in the U.K., where small and large stores have been unable to accept digital/network-required payments and ended up with massive queues or customers abandoning shopping carts full of items due to not having cash.

"Spar cyber attack hits more than 300 convenience stores" (2021-12) https://www.bbc.com/news/uk-england-lancashire-59554433

"Manx Telecom broadband outage affects 4,000" (2020-08) https://www.bbc.com/news/world-europe-isle-of-man-53920785

"Wirecard: 'It’s really bad. I’m left with nothing'" (2020-06) https://www.bbc.com/news/business-53222181

"Debit card glitch means thousands charged twice" (2018-09) https://www.bbc.com/news/uk-england-45400234

"Visa (Europe) says service returning to normal" (2018-06) https://www.bbc.com/news/business-44335804

"Asda card machine fault leads to queues at checkouts" (2016-10) https://www.bbc.com/news/uk-37815973

"RBS says it has resolved debit card computer glitch" (2016-10) https://www.bbc.com/news/business-37658559

"Lloyds Banking Group says card problems sorted" (2014-01) https://www.bbc.com/news/business-25907000

"Card payments system crash disrupts shoppers" (2010-10) https://www.bbc.com/news/uk-11458962

Also, interesting and somewhat unexpected contactless from long distance!

"Contactless 'charging errors' at Marks and Spencer" (2013-05) https://www.bbc.com/news/business-22545804

Submissions

Rare copy of US Declaration of Independence found by volunteer in UK archives

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