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pop linux reviewed on distrowatch
by Ian Young 30 May '18

30 May '18

https://distrowatch.com/weekly.php?issue=20180528 By a strange coincidence the Sys 76 Linux version gets a look over this week on Distrowatch about the same time as our last meeting. A range of interesting comments amidst the dross. ~ Ian Y

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Sonic and Ultrasonic Attacks Damage Hard Drives and Crash OSes
by Peter Reutemann 30 May '18

30 May '18

'Attackers can cause potentially harmful hard drive and operating system crashes by playing sounds over low-cost speakers embedded in computers or sold in stores, a team of researchers demonstrated last week. The attacks use sonic and ultrasonic sounds to disrupt magnetic HDDs as they read or write data. The researchers showed how the technique could stop some video-surveillance systems from recording live streams. Just 12 seconds of specially designed acoustic interference was all it took to cause video loss in a 720p system made by Ezviz. Sounds that lasted for 105 seconds or more caused the stock Western Digital 3.5 HDD in the device to stop recording altogether until it was rebooted. The device uses flash storage to house its firmware, but by default it uses a magnetic HDD to store the large quantities of video it records. The attack used a speaker hanging from a ceiling that rested about four inches above the surveillance system's HDD. The researchers didn't remove the casing or otherwise tamper with the surveillance system. The technique was also able to disrupt HDDs in desktop and laptop computers running both Windows and Linux. In some cases, it even required a reboot before the PCs worked properly. ' -- source: https://hardware.slashdot.org/story/18/05/30/0349202 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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Windows 10 Spring Update Improves Linux On WSL With Unix Sockets and More
by Peter Reutemann 29 May '18

29 May '18

'Windows 10 build 1803 has come out this month, but with some problems. AnandTech has a deep-dive with the review examing many new features including the much better support for Linux. WSL (Windows Subsystem for Linux) now has native Curt and Tar from the command prompt as well as a utility to convert Unix to Windows pathnames called WSLpath.exe which is documented here. In addition it was mentioned on Slashdot in the past about OpenSSH being ported natively to Win32 in certain early builds. It now seems the reason was for Linux interoperability with this Spring Update 2. Unix sockets mean you can run Kali Linux on Windows 10 for penetration testing or run an Apache server in the background with full Linux networking support. Deemons now run in the background even with the command prompt closed. [...]' -- source: https://tech.slashdot.org/story/18/05/29/0244210 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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Satya Nadella: “I Believe Right Now Microsoft Is Probably On The Right Side Of History”
by Lawrence D'Oliveiro 27 May '18

27 May '18

Interview of the Microsoft boss by the Daily Telegraph <https://www.nzherald.co.nz/business/news/article.cfm?c_id=3&objectid=120597…>: ... Nadella's four years in charge cannot be described as anything but a success. Under his watch, its share price has increased by 170 per cent, finally overtaking the levels from the peak of the dotcom boom. Except that share price seems a somewhat short-sighted way of measuring a company’s success. Look at HP. "I always make this case, which is if it was not for Microsoft's openness, the web wouldn't have happened. I was talking to [web creator Sir] Tim Berners-Lee yesterday and I sort of said: 'Think about the current ecosystems and how closed and how walled gardened and riddled with all kinds of ways they've rigged it, [compared] to where we were.' Talk about rewriting history. The Web was growing by leaps and bounds long before Microsoft even noticed it (remember how the first edition of Bill Gates’ book “The Road Ahead” didn’t even mention it?). Netscape was the leader and de-facto setter of standards, until Microsoft belatedly entered the race, and took over by giving away their product for free. Then we had the long period of stagnation under Internet Explorer 6, until Firefox came in to jolt them out of their complacency, followed by Apple’s Safari and Google’s Chrome. So to say that “Microsoft’s openness” had anything to do with it is just shamelessly false.

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There Are Real Reasons For Linux To Replace ifconfig, netstat and Other Classic Tools
by Peter Reutemann 27 May '18

27 May '18

'One of the ongoing system administration controversies in Linux is that there is an ongoing effort to obsolete the old, cross-Unix standard network administration and diagnosis commands of ifconfig, netstat and the like and replace them with fresh new Linux specific things like ss and the ip suite. Old sysadmins are generally grumpy about this; they consider it yet another sign of Linux's 'not invented here' attitude that sees Linux breaking from well-established Unix norms to go its own way. Although I'm an old sysadmin myself, I don't have this reaction. Instead, I think that it might be both sensible and honest for Linux to go off in this direction. There are two reasons for this, one ostensible and one subtle. The ostensible surface issue is that the current code for netstat, ifconfig, and so on operates in an inefficient way. Per various people, netstat et al operate by reading various files in /proc, and doing this is not the most efficient thing in the world (either on the kernel side or on netstat's side). You won't notice this on a small system, but apparently there are real impacts on large ones. Modern commands like ss and ip use Linux's netlink sockets, which are much more efficient. In theory netstat, ifconfig, and company could be rewritten to use netlink too; in practice this doesn't seem to have happened and there may be political issues involving different groups of developers with different opinions on which way to go. (Netstat and ifconfig are part of net-tools, while ss and ip are part of iproute2.) However, the deeper issue is the interface that netstat, ifconfig, and company present to users. In practice, these commands are caught between two masters. On the one hand, the information the tools present and the questions they let us ask are deeply intertwined with how the kernel itself does networking, and in general the tools are very much supposed to report the kernel's reality. On the other hand, the users expect netstat, ifconfig and so on to have their traditional interface (in terms of output, command line arguments, and so on); any number of scripts and tools fish things out of ifconfig output, for example. As the Linux kernel has changed how it does networking, this has presented things like ifconfig with a deep conflict; their traditional output is no longer necessarily an accurate representation of reality.' -- source: https://linux.slashdot.org/story/18/05/27/1448211 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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Mystery Donor Pledges $1 Million To The GNOME Foundation
by Peter Reutemann 27 May '18

27 May '18

'This week, The GNOME Foundation made a shocking revelation: a mystery donor has pledged $1 million dollars. We don't know who is promising the money -- it could be a rich man or woman, but more likely -- and this is pure speculation -- it is probably a company that benefits from GNOME, such as Red Hat or Canonical. "An anonymous donor has pledged to donate up to $1,000,000 over the next two years, some of which will be matching funds. The GNOME Foundation is grateful for this donation and plans on using these funds to increase staff to streamline operations and to grow its support of the GNOME Project and the surrounding ecosystem. While the GNOME Foundation has maintained its position as a proponent of the GNOME Project, growth has been limited. With these funds, the GNOME Foundation will be able to expand and lead in the free software space," says The GNOME Foundation.' -- source: https://linux.slashdot.org/story/18/05/27/1653225 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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New speculative-execution vulnerability strikes AMD, ARM, and Intel
by Peter Reutemann 22 May '18

22 May '18

'A new attack that uses processors' speculative-execution capabilities to leak data, named Speculative Store Bypass (SSB), has been published after being independently discovered by Microsoft's Security Response Center and Google Project Zero. Processors from Intel and AMD, along with some of those using ARM's designs, are all affected.' -- source: https://arstechnica.com/gadgets/2018/05/new-speculative-execution-vulnerabi… 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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meeting next Monday
by Peter Reutemann 22 May '18

22 May '18

Hi everyone We have a meeting next Monday: 'Carsten will give a short introduction to their FOSS project "DiLer" which is a LMS and school administration software and how they made it a business model. Some details are available at https://digitale-lernumgebung.de in English. Lawrence D'Oliveiro will show off Pop!_OS, the Ubuntu-derivative that System76 uses on their computers that they sell (https://system76.com/pop)' More details: https://www.meetup.com/WaikatoLinuxUsersGroup/events/246737153 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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Ask Slashdot: Some Good Linux Desktop Option For Kids?
by Peter Reutemann 17 May '18

17 May '18

'I'm looking to re-purpose some of the older hardware that I've held onto to create something of a starter machine for my kids (both aged below 10). At this point it's still just a few shortcut icons I can setup on the desktop for them, primarily to web tools/sites they use, but I'd like some flexibility; everything I've read suggests options that haven't had any activity since 2015. Is there an option out there or is this just a custom job' -- source: https://ask.slashdot.org/story/18/05/17/1425203 See the discussion in the comments of that article. 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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Ubuntu - Upgrading to 18.04
by Ian Stewart 17 May '18

17 May '18

Hi, Ubuntu users are probably aware that about three weeks ago version 18.04.0 was released. This is a Long Term Support (LTS) release. If you are running version 17.10, and your "Software & Updates" --> "Updates" --> "Notify me of a new Ubuntu version:" is set to either "For any new version" or "For long-term support versions", then you will probably have received a GUI pop-up screen asking you if you wanted to do an on-line upgrade to 18.04. I had no problems when performing the on-line upgrade with Ubuntu/Mate 17.10 to 18.04. (Which is better that when I did the 17.04 to 17.10, where I struck an application dependency problem.) I also have a 16.04 LTS Ubuntu/Mate laptop, and I was expecting a pop-up and to get prompted to do the software upgrade to 18.04 LTS, but all I could get was a message to say my 16.04 version was up-to-date. In reading this askubuntu posting: https://askubuntu.com/questions/1028624/not-able-to-upgrade-from-16-04-lts-… ...I found someone has posted the following comment: Upgrades from LTS releases are scheduled after the first patch - 18.04.1 which is usually a month after the first release. They need to make sure everything goes smoothly and then the software manager will allow it. If you're anxious, which based on my experience you shouldn't be cause there are probably tons of bugs, you can still force that upgrade, but that's not recommended. sudo do-release-upgrade -d ...despite it not being recommended I did the "sudo do-release-upgrade -d" and it upgraded my laptop from 16.04 to 18.04, and it seems to be booting and working fine. However, if you read the posting, then be aware that not everyone has had the same level of success: "I did a sudo do-release-upgrade -d on an ASUS SonicMaster with Ubuntu 16.04 LTS on it. After the upgrade, I restarted the machine, and the computer couldn't boot due to some infinite loops while showing messages regarding PCI bus." cheers, Ian.

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