- wlug - University of Waikato Mail Lists

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 21 May '18

21 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 16 May '18

16 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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Fedora-Based Linux Distro Korora Halts Development
by Peter Reutemann 16 May '18

16 May '18

'Korora, a Fedora-based Linux distro, halted its development this month, BetaNews' Brian Fagioli spotted Wednesday. The announcement would irk many, as Korora consistently received positive feedback from critics and users alike. News outlet ZDNet once described Korora as "Fedora++", while Slashdot readers, too, spoke highly of the distro. At the same time, the announcement should come as little surprise to anyone who has been tracking Korora's work. In a blog post, Korora team wrote: Korora for the forseeable future is not going to be able to march in cadence with the Fedora releases. In addition to that, for the immediate future there will be no updates to the Korora distribution. Our team is infinitesimal (currently 1 developer and 2 community managers) compared to many other distributions, we don't have the luxury of being able to dedicate the amount of time we would like to spend on the project and still satisfy our real life obligations. So we are taking a little sabbatical to avoid complete burn out and rejuvenate ourselves and our passion for Korora/Fedora and wider open source efforts. The team had expressed similar concerns earlier this year: For the past few years Korora has released a new version in line with each Fedora version. That means that approximately twice a year we prepare, test and create 5 different ISO versions. This is as well as, among other things, developing new projects, supporting existing releases and planning the future versions. As each team member has different skills some tasks, such as development, can only be done by one person. All this is done in our spare time along side our job, family and personal responsibilities. For a very small team, currently 3 people plus the occasional input from others, this is a lot of work. It means that often Korora has to take a back seat when real life intrudes. This isn't the first time Korora had to abruptly pause its development. In 2007, Christopher Smart, who kickstarted Korora (at the time based on Gentoo Linux), had discontinued the project -- only to revive it three years later.' -- source: https://linux.slashdot.org/story/18/05/16/1352245 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 rowan schischka 15 May '18

15 May '18

My Ubuntu 18.04 upgrade story from 17.10, originally 16.04. I had to re-install xserver-xorg-input-all to get my mouse and keyboard working I also had to reinstall gnome, for some reason only Unity desktop was installed. Other than that it is working fine.

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It Doesn't Take a Genius to See That Microsoft Still Attacks GNU/Linux With Patents to Make Billions of Dollars in 'Protection' Money
by Peter Reutemann 14 May '18

14 May '18

'Intellectual Ventures, Finjan, RPX, and other Microsoft-connected trolls cannot be countered by LOT Network and the likes of it (notably OIN); Microsoft continues to shrewdly distribute patents to trolls, offering 'protection' from them (for a fee) and pressuring OEMs to bundle Microsoft 'apps' or risk retaliatory patent lawsuits' -- source: http://techrights.org/2018/05/14/microsoft-still-attacks-with-patents/ 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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Attention PGP Users: New Vulnerabilities Require You To Take Action Now
by Peter Reutemann 14 May '18

14 May '18

'A group of European security researchers have released a warning about a set of vulnerabilities affecting users of PGP and S/MIME. From a report: EFF has been in communication with the research team, and can confirm that these vulnerabilities pose an immediate risk to those using these tools for email communication, including the potential exposure of the contents of past messages. The full details will be published in a paper on Tuesday at 07:00 AM UTC (3:00 AM Eastern, midnight Pacific). In order to reduce the short-term risk, we and the researchers have agreed to warn the wider PGP user community in advance of its full publication. Our advice, which mirrors that of the researchers, is to immediately disable and/or uninstall tools that automatically decrypt PGP-encrypted email. Until the flaws described in the paper are more widely understood and fixed, users should arrange for the use of alternative end-to-end secure channels, such as Signal, and temporarily stop sending and especially reading PGP-encrypted email.' -- source: https://it.slashdot.org/story/18/05/14/149222 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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