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Linux Mint 19.2
by tom butz 23 Nov '19

23 Nov '19

Re: Linux Mint 19.2 The latest update ('new' package-manager) seems to disable Bluetooth. That also happened to me when I updated from 19.1 to 19.2 WITHOUT a complete reinstall. There are two workarounds: EITHER: back-up the whole system every night, and restore it if Bluetooth disappears again (=no icon in the panel after an update) - skipping updates. OR: use another system such as SparkyLinux, e.g. on a bootable sdcard for Bluetooth-transfers and stick with Mint 19.2 for anything else. I use this 'veteran' Linux because it features OpenShot 1.4 - my (favourite) moviemaker. My Toshiba laptop has 128 GB of RAM-HD, so copying/restoring to/from an image-file doesn't take all that long. Tom Butz

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Server Management Recommendations
by Stu Meads 22 Nov '19

22 Nov '19

Hi all, I'm setting up a new Ubuntu 19.04LTS LAMP server in the next few months, I normally do it all myself, manage all the security myself etc, but I'm finding I don't have time and am looking for a reputable person or company to help me with initial setup, making sure everything is really secure, and be available for upgrades, security audits etc. My preference is a New Zealand based company in the hope that I will get a better quality service, easier communication etc, but will go for whatever's best for my employer Any recommendations either privately or via this list welcome

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The Ad Tracker Arms Race Continues
by Lawrence D'Oliveiro 22 Nov '19

22 Nov '19

Web advertisers are resorting to a new technique <https://www.theregister.co.uk/2019/11/21/ublock_origin_firefox_unblockable_…> to bypass restrictions on third-party cookies for tracking users’ browsing behaviour: use first-party cookies instead. A detailed example can be found in this GitHub issue <https://github.com/uBlockOrigin/uBlock-issues/issues/780>: the site www.liberation.fr includes links to f7ds.liberation.fr, which is notionally under the same domain. However, that is actually a CNAME (alias) for the third-party tracker site liberation.eulerian.net. So cookies that are supposed to be restricted to *.liberation.fr are passed to that site as well. Just to be clear, this is not a browser “bug” by any means; it’s just part of how the DNS is supposed to work. The good news is, Firefox offers an API that adblocker addons can use to detect this sort of thing going on and stop it.

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System76 Will Start Designing and Building Its Own Linux Laptops Beginning January 2020
by Peter Reutemann 21 Nov '19

21 Nov '19

'Denver-based PC manufacturer and Pop!_OS Linux developer System76 plans to follow-up its custom Thelio desktop PC with an in-house laptop beginning next year, according to founder and CEO Carl Richell. During a recent interview, Richell was quick to emphasize that the entire process of designing, prototyping and iterating the final product could take two to three years. But the company is eager to break into this market and put the same signature "stamp" on its laptop hardware that graces its custom-built Thelio desktop. System76 sells an extensive lineup of laptops, but the machines are designed by the likes of Sager and Clevo. The company doesn't merely buy a chassis and slap Pop!_OS on it, but Richell tells me he's confident that with the experience gained from developing Thelio -- and the recent investment into a factory at the company's Denver headquarters -- System76 is capable of building a laptop from the ground up that meets market needs and carries a unique value proposition. Richell says the company's first priority is locking down the aesthetic of the laptop and how various materials look and feel. It will simultaneously begin working on the supply chain aspects and speaking with various display and component manufacturers. System76 will design and build a U-class laptop first (basically an Ultrabook form factor like the existing Darter and Galago) and then evaluate what it might do with higher-end gaming and workstation notebooks with dedicated graphics.' -- source: https://hardware.slashdot.org/story/19/11/20/2241223 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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“Where the Wi-Fi sucks” is where a new wireless protocol does its magic
by Peter Reutemann 21 Nov '19

21 Nov '19

'Researchers at Brigham Young University have created a new RF protocol that runs on top of existing consumer Wi-Fi at significantly greater range. But before you get too excited, the protocol's bandwidth is extremely low—so much so that it makes LoRa look like an OC-24. The protocol, called ONPC—short for On-Off Noise Power Communication—currently only specifies a single bit per second. Although ONPC only conveys one bit per second of data, its range is 60m or more beyond Wi-Fi—and it runs in software alone, on unmodified Wi-Fi hardware. An ONPC device can connect to standard Wi-Fi when range permits, fall back to ONPC mode if the connection drops, and then re-connect to the Wi-Fi when it becomes available again.' -- source: https://arstechnica.com/gadgets/2019/11/where-the-wi-fi-sucks-is-where-a-ne… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Google outlines plans for mainline Linux kernel support in Android
by Peter Reutemann 20 Nov '19

20 Nov '19

'It seems like Google is working hard to update and upstream the Linux kernel that sits at the heart of every Android phone. The company was a big participant in this year's Linux Plumbers Conference, a yearly meeting of the top Linux developers, and Google spent a lot of time talking about getting Android to work with a generic Linux kernel instead of the highly-customized version it uses now. It even showed an Android phone running a mainline Linux kernel. But first, some background on Android's current kernel mess.Currently, three major forks happen in between the "mainline" Linux kernel and a shipping Android device (note that "mainline" here has no relation to Google's own "Project Mainline"). First, Google takes the an LTS (Long Term Support) Linux kernel and turns it into the "Android Common kernel"—the Linux kernel with all the Android OS-specific patches applied. Android Common is shipped to the SoC vendor (usually Qualcomm) where it gets its first round of hardware-specific additions, first focusing on a particular model of SoC. This "SoC Kernel" then gets sent to a device manufacturer for even more hardware-specific code that supports every other piece of hardware, like the display, camera, speakers, usb ports, and any extra hardware. This is the "Device Kernel," and it's what actually ships on a device.' -- source: https://arstechnica.com/gadgets/2019/11/google-outlines-plans-for-mainline-… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Google and Samsung Fix Android Spying Flaw. Other Makers May Still Be Vulnerable
by Peter Reutemann 20 Nov '19

20 Nov '19

'Until recently, weaknesses in Android camera apps from Google and Samsung made it possible for rogue apps to record video and audio and take images and then upload them to an attacker-controlled server -- without any permissions to do so. Camera apps from other manufacturers may still be susceptible. From a report: The weakness, which was discovered by researchers from security firm Checkmarx, represented a potential privacy risk to high-value targets, such as those preyed upon by nation-sponsored spies. Google carefully designed its Android operating system to bar apps from accessing cameras and microphones without explicit permission from end users. An investigation published Tuesday showed it was trivial to bypass those restrictions. The investigation found that an app needed no permissions at all to cause the camera to shoot pictures and record video and audio. To upload the images and video -- or any other image and video stored on the phone -- to an attacker-controlled server, an app needed only permission to access storage, which is among one of the most commonly given usage rights. The weakness, which is tracked as CVE-2019-2234, also allowed would-be attackers to track the physical location of the device, assuming GPS data was embedded into images or videos. Google closed the eavesdropping hole in its Pixel line of devices with a camera update that became available in July. Checkmarx said Samsung has also fixed the vulnerability, although it wasn't clear when that happened. Checkmarx said Google has indicated that Android phones from other manufacturers may also be vulnerable. The specific makers and models haven't been disclosed.' -- source: https://tech.slashdot.org/story/19/11/19/1737219 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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The World's Fastest Supercomputers Hit Higher Speeds Than Ever With Linux
by Peter Reutemann 19 Nov '19

19 Nov '19

'In the latest Top 500 supercomputer ratings, the average speed of these Linux-powered racers is now an astonishing 1.14 petaflops. The fastest of the fast machines haven't changed since the June 2019 Top 500 supercomputer list. Leading the way is Oak Ridge National Laboratory's Summit system, which holds top honors with an HPL result of 148.6 petaflops. This is an IBM-built supercomputer using Power9 CPUs and NVIDIA Tesla V100 GPUs. In a rather distant second place is another IBM machine: Lawrence Livermore National Laboratory's Sierra system. It uses the same chips, but it "only" hit a speed of 94.6 petaflops. Close behind at No. 3 is the Sunway TaihuLight supercomputer, with an HPL mark of 93.0 petaflops. TaihuLight was developed by China's National Research Center of Parallel Computer Engineering and Technology (NRCPC) and is installed at the National Supercomputing Center in Wuxi. It is powered exclusively by Sunway's SW26010 processors. Sunway's followed by the Tianhe-2A (Milky Way-2A). This is a system developed by China's National University of Defense Technology (NUDT). It's deployed at the National Supercomputer Center in China. Powered by Intel Xeon CPUs and Matrix-2000 accelerators, it has a top speed of 61.4 petaflops. Coming at No. 5, the Dell-built, Frontera, a Dell C6420 system is powered by Intel Xeon Platinum processors. It speeds along at 23.5 petaflops. It lives at the Texas Advanced Computing Center of the University of Texas. The most powerful new supercomputer on the list is Rensselaer Polytechnic Institute Center for Computational Innovations (CCI)'s AiMOS. It made the list in the 25th position with 8.0 petaflops. The IBM-built system, like Summit and Sierra, is powered by Power9 CPUs and NVIDIA V100 GPUs. In closing, ZDNet's Steven J. Vaughan-Nichols writes: "Regardless of the hardware, all 500 of the world's fastest supercomputers have one thing in common: They all run Linux."' -- source: https://linux.slashdot.org/story/19/11/18/2128212 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Intel To Remove Old Drivers and BIOS Updates From Its Site
by Peter Reutemann 19 Nov '19

19 Nov '19

'By Friday this week, Intel plans to remove old drivers and BIOS updates from its official website. From a report: "This download, BIOS Update [BLH6710H.86A] 0163, will no longer be available after November 22, 2019 and will not be supported with any additional functional, security, or other updates," reads a message posted to the download page of one of the impacted components. "Intel recommends that users of BIOS Update [BLH6710H.86A] 0163 uninstall and/or discontinue use as soon as possible," the message continues. The downloads are drivers and BIOS updates for Intel desktop components and motherboards the company released in the 90s and early-to-mid 2000s. Downloads for hundreds of components are believed to have been impacted, from motherboards to NIC cards and graphics cards. Most of the drivers are for Windows versions like 98, ME, XP, and older Windows Server editions -- old Windows OS versions that have themselves reached end-of-life (EOL) All components and motherboards reached (EOL) years ago, and Intel stopped delivering firmware updates as a result. Its website was merely hosting the older files for convenience.' -- source: https://it.slashdot.org/story/19/11/18/1646210 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Microsoft Announces Plan To Support DoH In Windows
by Peter Reutemann 19 Nov '19

19 Nov '19

'Microsoft's Core Network team just announced they plan on supporting DoH in the Windows resolver. In the blog post, the company writes: Providing encrypted DNS support without breaking existing Windows device admin configuration won't be easy. However, at Microsoft we believe that "we have to treat privacy as a human right. We have to have end-to-end cybersecurity built into technology." We also believe Windows adoption of encrypted DNS will help make the overall Internet ecosystem healthier. There is an assumption by many that DNS encryption requires DNS centralization. This is only true if encrypted DNS adoption isn't universal. To keep the DNS decentralized, it will be important for client operating systems (such as Windows) and Internet service providers alike to widely adopt encrypted DNS. With the decision made to build support for encrypted DNS, the next step is to figure out what kind of DNS encryption Windows will support and how it will be configured. Here are our team's guiding principles on making those decisions: Windows DNS needs to be as private and functional as possible by default without the need for user or admin configuration because Windows DNS traffic represents a snapshot of the user's browsing history. To Windows users, this means their experience will be made as private as possible by Windows out of the box. For Microsoft, this means we will look for opportunities to encrypt Windows DNS traffic without changing the configured DNS resolvers set by users and system administrators. Privacy-minded Windows users and administrators need to be guided to DNS settings even if they don't know what DNS is yet. Many users are interested in controlling their privacy and go looking for privacy-centric settings such as app permissions to camera and location but may not be aware of or know about DNS settings or understand why they matter and may not look for them in the device settings. Windows users and administrators need to be able to improve their DNS configuration with as few simple actions as possible. We must ensure we don't require specialized knowledge or effort on the part of Windows users to benefit from encrypted DNS. Enterprise policies and UI actions alike should be something you only have to do once rather than need to maintain. Windows users and administrators need to explicitly allow fallback from encrypted DNS once configured. Once Windows has been configured to use encrypted DNS, if it gets no other instructions from Windows users or administrators, it should assume falling back to unencrypted DNS is forbidden.' -- source: https://yro.slashdot.org/story/19/11/18/1929229 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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