Mastodon Ham Radio culture is amazing.

I am following 4 active threads about REALLY INTERESTING STUFF. On top of that, I see insightful commentary that makes me think about the hobby and how I enjoy it.

This is a great place to hang out. Thanks for making it great!

Yeah...YOU!

#hamradio

🐧If you're at Linux Plumbers Conf, in person or online, we are presenting an overview of Linux Virtualization Based Security (LVBS) on the main track at 10:15 ET.

https://lpc.events/event/17/contributions/1515/

Got distracted working on slides, used the AI in powerpoint to make some alien cities. Here's one on an accretion-disk world. The "water" is not for swimming.

Testbench passing for #polyphase channelizer for #Haifuraiya, an #opensource #HEO or #GEO communications #satellite design. Applicable to #hamradio, 5 GHz uplink and 10 GHz downlink. Shown is the transponder receiver filter.

If you’d like to join this or any other @OpenResearchIns project, get in touch.

At Linux Plumbers, toolchain track. @linuxplumbersconf

@linuxplumbersconf Youtube Live Stream URLs are now available on the Schedule Overview page (https://lpc.events/event/17/timetable/#all).

Find the track you want and click the paperclip on the upper right corner to bring up the Live Stream Link

#NASAWebb + the Hubble Space Telescope = gold! This image of galaxy cluster MACS0416 combines visible and infrared light to create one of the most colorful views of the universe. Astronomers have unearthed some nuggets of science, too: https://webbtelescope.pub/3txHQx4

Anyone else picked up some older Arduino code written in kernel-like C, which doesn’t compile anymore due to use of non-trivial designated intializers, and had to rewrite the code with C++ objects?

Today is the anniversary of the launch of the #Linux #Kernel Self-Protection Project (2015), and the invention of the Flux Capacitor (1955):
https://lore.kernel.org/kernel-hardening/CAGXu5jJ3FgxXK9WuOLRwnEq=y4dS+CTm+WQBxWe3sYZ7e9p6Gg@mail.gmail.com/

FWIW. I've made a couple of essentially duplicate postings across X and Fediverse recently for testing purposes.

Conclusion: I'm pretty sure that engagement on RF/Microwave/Amateur Radio is better here now, and also that there are many more bots on X than real people. I also suspect that followers on X are not seeing much from regular users. Infosec seems reasonably strong in the Fediverse.

There is still a lack of critical mass here in many areas, which is unfortunate. X is close to dead for normal people, but many are still primarily or only present there.

I'm not seeing anything worthwhile on bsky or threads.

What are others seeing re. social media trends? Are blogs making a comeback?

On this week's #HacksterCafe , I interview Emma Fletcher – cofounder of Learn to Solder Kits and Evergreen Support, which helps small #hardware businesses succeed. (Plus, we went to high school together!)

Drop your questions in the chat on Tuesday (today) at 10am Pacific – or catch the replay: https://www.youtube.com/watch?v=9MZUTTGfq7w&list=PLsRBa4uXjihZwcYrwwuPhsYxWtFwMBqDF&index=1

Yes, #systemd switching everything over to #pidfds.

* Most of the internal process tracking is being changed to use PIDFDs instead of PIDs when the kernel supports it, to improve robustness and reliability.

https://github.com/systemd/systemd/blob/main/NEWS

Not sure who needs to hear this but microwave ovens operate at UHF.

The Linux v6.7 merge window has been open for a few days now, here are the SELinux and audit highlights:

https://paul-moore.com/blog/d/2023/11/linux_v67_merge_window.html

#selinux #audit

So we merged this → https://github.com/systemd/systemd/pull/28891 into systemd today. I like to believe that this is a major step towards closing the "TPM gap" we have on Linux toward other OSes. It can automatically generate an automatic TPM2 PCR policy from various inputs covering the PCRs that generally are hard to predict by the OS vendor, i.e. things like local firmware versions, extension cards and so on. It stores this in an NV index in the TPM. Things like LUKS can then be locked against that NV index.

Working on some long-needed updates to my 1.2m dish setup. Mounting an azimuth sensor (ETS25 absolute encoder) directly under the Az slew drive. A previous belt-driven version was too complicated. This is all upside down, btw. #amateurradio #hamradio #radioastronomy #electronics #microwave

Reminder, the big day starts Monday 8:30. You can still join remotely! @netdev01 0x17 https://netdevconf.info/0x17/pages/sessions.html #netdevconf

@breakingtaps interested in any info here, too.

RE: https://universeodon.com/users/breakingtaps/statuses/111319264146509283

Video overview of #Incus 0.2 is live now!
https://www.youtube.com/watch?v=ePvhWNv-gp4

Made some millimeter waves today, presumably at 47.088 GHz. Using a Kuhne synth at 11.772 GHz into a WA1MBA quadrupler. I’m able to detect power in this band (6mm), but not frequency (yet). #microwave #mmwave #hamradio #amateurradio.