Prototyping a monitor circuit for GaN RF power amplifier devices. This is indicating drain current and heat sink temperature, and can be expanded to other measurements as needed. What started as a ‘simple’ project became an entire side quest. This uses an Arduino Pro Mini, an INA169 current sensor, and a thermistor. Could be done more simply with a PIC but this is what I had. The cheap OLED display self destructed not long after this photo, as I fed it 12v instead of Vcc.

📣 Postdoc job alert 📣

The “Astrophysical and Cosmological Relativity” department at the @mpi_grav in Potsdam announces the opening of several postdoctoral appointments.

These appointments will be in the area of data analysis and its interface with waveform modeling for the recently adopted space-based gravitational-wave detector LISA.

ℹ️ https://www.aei.mpg.de/1155448/acr-lisa-postdoc

📅 apply by May 21, 2024

#Postdoc #PostdocPosition #Job #Physics #Astrophysics #Potsdam #LISA #LISAMission

[$] Systemd heads for a big round-number release https://lwn.net/Articles/971866/ #LWN

Uh, why does dropbox "need" access to my contacts?

Linux Plumbers 2024 has accepted 9 Microconferences! But we had 26 submissions for 18 slots! What to do with that? Read about it here: https://lpc.events/blog/current/index.php/2024/05/03/awesome-amount-of-microconference-submissions/

Got slightly distracted in midjourney.

This is Seattle, Cascadia in 3357, on the 1000th anniversary of The Fault.

Idaho's Mount Mersini-Houghton is in the background. Also notable is the newly refurbished Space Needle Memorial.

Videos from LSS-NA 2024 in Seattle are now up: https://www.youtube.com/playlist?list=PLbzoR-pLrL6rbN7fu5TId8VWAC5A8v5O7

2️⃣ Here's the 2nd installment of my series of posts highlighting key new features of the upcoming v256 release of systemd.

This time we'll talk about encrypted credentials. Credentials are these little pieces of information that you can pass into systemd systems and into system services. They can carry secrets but also other kinds of parameters. One key feature is that they can be encrypted while at rest, locked against the system's TPM…

6️⃣ Here's the 6th installment of my series of posts highlighting key new features of the upcoming v256 release of systemd.

In the 2nd installment of this series we have already discussed system and service credentials in systemd a bit. Quick recap: these are smallish blobs of data that can be passed into a service in a secure way, to parameterize, configure it, and in particular to pass secrets to it (passwords, PINs, private keys, …).

Reminder that the CFP for @allsystemsgo 2024 is open, one month and two weeks to go until the deadline! You can submit your proposal at https://cfp.all-systems-go.io/all-systems-go-2024/cfp
Tickets are also on sale at https://all-systems-go.io/

#ASG #ASG2024 #systemd

@niconiconi Inductors have left the chat.

RE: https://mk.absturztau.be/notes/9soq5756ksub052f

Interesting OSS-NA talk, Hardware in Space. https://www.youtube.com/watch?v=Y0bdc1uu-jI

📢 Reminder: The CfP for the European Linux Security Summit is open until May 19th!

🐧 https://events.linuxfoundation.org/linux-security-summit-europe/program/cfp/

🏰 LSS-EU will be held in Vienna, Austria, on 16-17 September, 2024. It is co-located with OSS-EU and Linux Plumbers Conference.

There is a new release of "The SELinux Notebook" out today!

https://github.com/SELinuxProject/selinux-notebook/releases/tag/20240430

#selinux

Found an exit.

Day 2 of the Linux Security Summit North America in Seattle at the new conference centre.

The 2024 Linux Security Summit North America kicks off in Seattle today.

I gave my talk at the @LinuxSecSummit ! I'll link to the video once it's posted.

Mitigating Integer Overflow in C
(or "How I learned to love the sanitizer")

Slides:
https://outflux.net/slides/2024/lss-na/

Summary:
https://lssna24.sched.com/event/1aIe9?iframe=no

More progress on the 30W 10GHz amplifier. Almost ready to test.

I'll give a talk about #Landlock at @sstic in June: From a security mechanism idea to a widely available implementation
https://www.sstic.org/2024/presentation/landlock-design/
A dedicated article will be published as well 🤓