fidzu : Operating Systems

If you're using Windows or macOS and have Adobe Creative Cloud installed, you may want to take a peek at your hosts file. It turns out Adobe adds a bunch of entries into the hosts file, for a very stupid reason. They're using this to detect if you have Creative Cloud already installed when you visit on their website. When you visit https://www.adobe.com/home, they load this image using JavaScript: https://detect-ccd.creativecloud.adobe.com/cc.png If the DNS entry in your hosts file is present, your browser will therefore connect to their server, so they know you have Creative Cloud installed, otherwise the load fails, which they detect. They used to just hit http://localhost:<various ports>/cc.png which connected to your Creative Cloud app directly, but then Chrome started blocking Local Network Access, so they had to do this hosts file hack instead. ↫ thenickdude at Reddit At what point does a commercial software suite become malware?

05 Apr 2026 1:59pm GMT

An ultra-lightweight real-time operating system for resource-constrained IoT and embedded devices. Kernel footprint under 10 KB, 2 KB minimum RAM, preemptive priority-based scheduling. ↫ TinyOS GitHub page Written in C, open source, and supports ARM and RISC-V.

04 Apr 2026 7:32am GMT

Another major improvement in Redox: a brand new scheduler which improves performance under load considerably. We have replaced the legacy Round Robin scheduler with a Deficit Weighted Round Robin scheduler. Due to this, we finally have a way of assigning different priorities to our Process contexts. When running under light load, you may not notice any difference, but under heavy load the new scheduler outperforms the old one (eg. ~150 FPS gain in the pixelcannon 3D Redox demo, and ~1.5x gain in operations/sec for CPU bound tasks and a similar improvement in responsiveness too (measured through schedrs)). ↫ Akshit Gaur Work is far from over in this area, as they're now moving on to "replacing the static queue logic with the dynamic lag-calculations of full EEVDF".

04 Apr 2026 7:28am GMT

You'd think if there was one corner of the open source world where you wouldn't find drama it'd be open source office suites, but it turns out we could not have been more wrong. First, there's The Document Foundation, stewards of LibreOffice, ejecting a ton of LibreOffice contributors. In the ongoing saga of The Document Foundation (TDF), their Membership Committee has decided to eject from membership all Collabora staff and partners. That includes over thirty people who have contributed faithfully to LibreOffice for many years. It is interesting to see a formal meritocracy eject so many, based on unproven legal concerns and guilt by association. This includes seven of the top ten core committers of all time (excluding release engineers) currently working for Collabora Productivity. The move is the culmination of TDF losing a large number of founders from membership over the last few years with: Thorsten Behrens, Jan 'Kendy' Holesovsky, Rene Engelhard, Caolan McNamara, Michael Meeks, Cor Nouws and Italo Vignoli no longer members. Of the remaining active founders, three of the last four are paid TDF staff (of whom none are programming on the core code). ↫ Micheal Meeks The end result seems to be that Collabora is effectively forking LibreOffice, which feels like we're back where we were 15 years ago when LibreOffice forked from OpenOffice. There seems to be a ton of drama and infighting here that I'm not particularly interested in, but it's sad to see such drama and infighting result in needless complications for developers, end users, and distributors alike. As if this wasn't enough, there's also forking drama in OnlyOffice land, the other open source office suite, licensed under the AGPL. This ope source office suite has been forked by Nextcloud and IONOS into Euro-Office, in pursuit of digital sovereignty in the EU. It's also not an entirely unimportant detail that OnlyOffice is Russian, with most of its developers residing in Russia. Anyway, the OnlyOffice team has not taken this in stride, claiming there's a violation of the AGPL license going on here, specifically because OnlyOffice adds contradictory attribution terms to the AGPL. It's a complicated story, but it does seem most experts in this area seem to disagree with OnlyOffice's interpretation. We're in for another messy time.

04 Apr 2026 7:21am GMT

This is the first of a series of articles in which you will learn about what may be one of the silliest, most preventable, and most costly mishaps of the 21st century, where Microsoft all but lost OpenAI, its largest customer, and the trust of the US government. ↫ Axel Rietschin It won't take long into this series of articles before you start wondering how anyone manages to ship anything at Microsoft. If even half of this is accurate, this company should be placed under some sort of external oversight.

04 Apr 2026 6:42am GMT

I assume I don't have to explain the difference between big-endian and little-endian systems to the average OSNews reader, and while most systems are either dual-endian or (most likely) little-endian, it's still good practice to make sure your code works on both. If you don't have a big-endian system, though, how do you do that? When programming, it is still important to write code that runs correctly on systems with either byte order (see for example The byte order fallacy). But without access to a big-endian machine, how does one test it? QEMU provides a convenient solution. With its user mode emulation we can easily run a binary on an emulated big-endian system, and we can use GCC to cross-compile to that system. ↫ Hans Wennborg If you want to make sure your code isn't arbitrarily restricted to little-endian, running a few tests this way is worth it.

03 Apr 2026 8:05pm GMT

I don't like to cover "current events" very much, but the American government just revealed a truly bewildering policy effectively banning import of new consumer router models. This is ridiculous for many reasons, but if this does indeed come to pass it may be beneficial to learn how to "homebrew" a router. Fortunately, you can make a router out of basically anything resembling a computer. ↫ Noah Bailey I genuinely can't believe making your own router with Linux or BSD might become a much more widespread thing in the US. I'm not saying it's a bad thing - it'll teach some people something new - but it just feels so absurd.

01 Apr 2026 7:43pm GMT

Why do so many people keep falling for the same trick over and over again? With an over $400 billion gap between the money invested in AI data centers and the actual revenue these products generate, Silicon Valley slowly returned to the tested and trusted playbook: advertising. Now, ads are starting to appear in pull requests generated by Copilot. According to Melbourne-based software developer Zach Manson, a team member used the AI to fix a simple typo in a pull request. Copilot did the job, but it also took the liberty of editing the PR's description to include this message: "⚡ Quickly spin up Copilot coding agent tasks from anywhere on your macOS or Windows machine with Raycast." ↫ David Uzondu at Neowin It turns out that Microsoft has added ads to over 1.5 million Copilot pull requests on GitHub, and they're even appearing on GitLab, one of the GitHub alternatives. The reasoning is clear, too, of course: "AI" companies and investors have poured ungodly amounts of money in "AI" that is impossible to recover, even with paying customers. As such, the logical next step is ads, and many "AI" companies are already starting to add advertising to their pachinko machines. It was only a matter of time before Copilot would start inserting ads into the pull requests it ejaculates over all kinds of projects. This isn't the first time a once-free service turns on its users, but it's definitely one of the quickest turnarounds I've ever seen. Usually it takes much longer before companies reach the stage of putting ads in their products to plug any financial bleeding, but with the amount of money poured into this useless black hole, it really shouldn't be surprising we're already there. I'm sure Copilot's competitors, like Claude, will soon follow suit. They're enshittifying Git, and developers are just letting it happen. No wonder worker exploitation is so rampant in Silicon Valley.

30 Mar 2026 9:14pm GMT

By reimplementing these features using capabilities, we made the kernel simpler by moving complex scheme and namespace management out of it which improved security and stability by reducing the attack surface and possible bugs. At the same time, we gained a means to support more sandboxing features using the CWD file descriptor. This project leads the way for future sandboxing support in Redox OS. As the OS continues to move toward capability-based security, it will be able to provide more modern security features. ↫ Ibuki Omatsu Redox seems to be making the right decisions at, crucially, the right time.

30 Mar 2026 9:02pm GMT

Of course, it was only a matter of time before the time-honoured tradition of the demoscene also got infected by "AI". For me personally, generative AI ruins much of the fun. I still enjoy creating pixel art and making little animations and demos. My own creative process remains satisfying as an isolated activity. Alas, obvious AI generated imagery - as well as middle-aged men plagiarizing other, sometimes much younger, hobbyist artists - makes me feel disappointed and empty. It's not as much about effort as it is about the loss of style and personality; soul, if you will. The result is defacement, to echo T. S. Eliot, rather than inspired improvement. Even in more elaborate AI-based works, it's hard to tell where the prompt ends and the pixelling begins. ↫ Carl Svensson A wonderful explanation of the rather unique views on originality, stealing, plagiarism, and related topics within the demoscene, which certainly diverge from many other places.

30 Mar 2026 8:35pm GMT

This guide describes how you can install a Plan 9 network on an OpenBSD machine (it will probably work on any unix machine though). The authentication service (called "authsrv" on Plan 9) is provided by a unix version: authsrv9. The file service is provided by a program called "u9fs". It comes with Plan 9. Both run from inetd. The (diskless) cpu server is provided by running qemu, booted from only a floppy (so without local storage). Finally, the terminal is provided by the program drawterm. The nice thing about this approach is that you can use all your familiar unix tools to get started with Plan 9 (e.g. you can edit the Plan 9 files with your favorite unix editor). I'm assuming you have read at least something about Plan 9, for example the introduction paper Plan 9 from Bell Labs. ↫ Mechiel Lukkien If you're running OpenBSD, you're already doing something better than everyone else, and if you want to ascend to the next level, this is a great place to start. Of course, the final level, where you leave your earthly roots behind and become a being of pure enlightened energy, is running Plan 9 on real hardware as the universe intended, but let's not put the cart before the horse. One day, all of humanity will just be an endless collection of interconnected cosmic Plan 9 servers, more plentiful than the stars in the known universe.

27 Mar 2026 7:40pm GMT

Towards the end of 2024, Dennis Biesma decided to check out ChatGPT. The Amsterdam-based IT consultant had just ended a contract early. "I had some time, so I thought: let's have a look at this new technology everyone is talking about," he says. "Very quickly, I became fascinated." Biesma has asked himself why he was vulnerable to what came next. He was nearing 50. His adult daughter had left home, his wife went out to work and, in his field, the shift since Covid to working from home had left him feeling "a little isolated". He smoked a bit of cannabis some evenings to "chill", but had done so for years with no ill effects. He had never experienced a mental illness. Yet within months of downloading ChatGPT, Biesma had sunk €100,000 (about £83,000) into a business startup based on a delusion, been hospitalised three times and tried to kill himself. ↫ Anna Moore at The Guardian These stories are absolutely heart-wrenching, and it doesn't just happen to people who have had a history of mental illness or other things you might associate with priming someone for "falling for" an "AI" chatbot. Just a few years in, and it's already clear that these tools pose a real danger to a group of people of indeterminate size, and proper research into the causes is absolutely warranted and needed. On top of that, if there's any evidence of wrongdoing from the companies behind these chatbots - intentionally making them more addictive, luring people in, ignoring established dangers, covering up addiction cases, etc. - lawsuits and regulation are definitely in order. Only yesterday, Facebook and Google lost a landmark trial in the US, ruling the companies intentionally made social media as addictive as possible, thereby destroying a person's life in the process. Countless similar lawsuits are underway all over the world, and I have a feeling that in a few years to decades, we'll look at unregulated, rampant social media the same way we look at tobacco now. Perhaps "AI" chatbots will join their ranks, too.

27 Mar 2026 7:30pm GMT

Today, we're excited to announce a significant step forward in our ongoing commitment to Windows security and system reliability: the removal of trust for all kernel drivers signed by the deprecated cross-signed root program. This update will help protect our customers by ensuring that only kernel drivers that the Windows Hardware Compatibility Program (WHCP) have passed and been signed can be loaded by default. To raise the bar for platform security, Microsoft will maintain an explicit allow list of reputable drivers signed by the cross-signed program. The allow list ensures a secure and compatible experience for a limited number of widely used, and reputable cross-signed drivers. This new kernel trust policy applies to systems running Windows 11 24H2, Windows 11 25H2, Windows 11 26H1, and Windows Server 2025 in the April 2026 Windows update. All future versions of Windows 11 and Windows Server will enforce the new kernel trust policy. ↫ Peter Waxman at the Windows IT Pro Blog The cross-signed root program was discontinued in 2021, and ran since the early 2000s, so I think it's fair to no longer automatically assume such possibly old and outdated drivers are still to be trusted.

27 Mar 2026 7:18pm GMT

I'll never grow tired of reading about the crazy tricks the Windows 95 development team employed to make the user experience as seamless as they could given the constraints they were dealing with. During the 16bit Windows days, application installers could replace system components with newer versions if such was necessary. Installers were supposed to do a version check, but many of them didn't follow this guidance. When moving to Windows 95, this meant installers ended up replacing Windows 95 system components with Windows 3.x versions, which wasn't exactly a goods thing. So, they came up with a solution. Windows 95 worked around this by keeping a backup copy of commonly-overwritten files in a hidden C:\Windows\SYSBCKUP directory. Whenever an installer finished, Windows went and checked whether any of these commonly-overwritten files had indeed been overwritten. If so, and the replacement has a higher version number than the one in the SYSBCKUP directory, then the replacement was copied into the SYSBCKUP directory for safekeeping. Conversely, if the replacement has a lower version number than the one in the SYSBCKUP directory, then the copy from SYSBCKUP was copied on top of the rogue replacement. ↫ Raymond Chen All of this happened entirely silently, and neither the installers nor the user had any idea this was happening. The Windows 95 team tried other solutions, like just making it impossible to replace system components with older versions entirely, but that caused many installers to break. Some installers apparently even went rogue and would create a batch file that would replace the system components upon a reboot, before Windows 95 could perform its silent fixes. Wild. I used Windows 95 extensively, and had no idea this was a thing.

26 Mar 2026 11:01pm GMT

The U.S. Federal Communications Commission said on Monday it was banning the import of all ​new foreign-made consumer routers, the latest crackdown on Chinese-made electronic gear over ‌security concerns. China is estimated to control at least 60% of the U.S. market for home routers, boxes that connect computers, phones, and smart devices to the internet. ↫ David Shepardson at Reuters I'm sure the American public will be thrilled to find out yet another necessity has drastically increased in price.

26 Mar 2026 10:41pm GMT

It's the end of an era: Apple has confirmed to 9to5Mac that the Mac Pro is being discontinued. It has been removed from Apple's website as of Thursday afternoon. The "buy" page on Apple's website for the Mac Pro now redirects to the Mac's homepage, where all references have been removed. Apple has also confirmed to 9to5Mac that it has no plans to offer future Mac Pro hardware. ↫ Chance Miller at 9To5Mac If a Mac Pro falls in the back of the Apple Store and there's no one around to hear it, does it make a sound?

26 Mar 2026 10:34pm GMT