Ubuntu Podcast

Upbeat and family-friendly show including news, discussion, interviews and reviews from the Ubuntu, Linux and Open Source world.

Rank #1: S12E30 – Quadralien.
This week we’ve been live streaming, we discuss our time at OggCamp 2019, bring you some command line love and go over all your amazing feedback. It’s Season 12 Episode 30 of the Ubuntu Podcast! Alan Pope, Mark Johnson and Martin Wimpress are connected and speaking to your brain. In this week’s show: We discuss what we’ve been up to recently: Alan has been Live streaming on YouTube. We discuss Oggcamp 2019!. We share a Command Line Lurve: detox – Remove problematic characters from file names And we go over all your amazing feedback – thanks for sending it – please keep sending it! Image taken from Quadralien published in 1988 for the Amiga by Logotron Ltd. That’s all for this week! You can listen to the Ubuntu Podcast back catalogue on YouTube. If there’s a topic you’d like us to discuss, or you have any feedback on previous shows, please send your comments and suggestions to show@ubuntupodcast.org or Tweet us or Toot us or Comment on our Facebook page or comment on our sub-Reddit. Join us in the Ubuntu Podcast Telegram group.

Rank #2: S12E29 – DOOM.
This week we’ve been to UbuCon Europe and preparing for a new baby. We round up the community news including updates from Regolith, Xubuntu, ZFS on Ubuntu, GNOME fighting patent trolls and we discuss some of our news picks from the tech world. It’s Season 12 Episode 29 of the Ubuntu Podcast! Alan Pope, Mark Johnson and Martin Wimpress are connected and speaking to your brain. In this week’s show: We discuss what we’ve been up to recently: Martin has been to UbuCon and got a new job. Mark has been doing baby things. We discuss the community news: Regolith adds support for Ubuntu 19.10 Install Xubuntu 19.10 on a Raspberry Pi 4 A detailed look at Ubuntu’s new experimental ZFS installer Stress testing CPU Temperatures The Ubuntu 20.04 LTS Codename Has Been Revealed… GNOME files a defence egainst patent troll Ubuntu is 15 years old We discuss the news: Linux on DeX is Dead, Says Samsung Phoronix Publish interview with ex-CTO at Purism UK government drops adult content blocking plans Image taken from DOOM published in 1993 for PC by id Software. That’s all for this week! You can listen to the Ubuntu Podcast back catalogue on YouTube. If there’s a topic you’d like us to discuss, or you have any feedback on previous shows, please send your comments and suggestions to show@ubuntupodcast.org or Tweet us or Toot us or Comment on our Facebook page or comment on our sub-Reddit. Join us in the Ubuntu Podcast Telegram group.

Destination Linux

A podcast made by people who love running Linux.

Rank #1: Ubuntu 19.10, KDE Plasma 5.17, & More with Wendell of Level1Tech – Destination Linux 144.
Sponsored by: do.co/dl Hosts of Destination Linux: Michael of TuxDigital = https://tuxdigital.com Ryan, aka DasGeek = https://dasgeekcommunity.com Noah of Ask Noah Show = http://asknoahshow.com Zeb, aka Zebedeeboss = https://youtube.com/zebedeebossSpecial Guests: Wendell of Level1Techs = https://level1techs.com/ Matt of Dark1LTG = https://www.youtube.com/user/darkone778Want to Support the Show? Support on Patreon or on Ko-Fi Order Destination Linux ApparelWant to follow the show and hosts on social media? You can find all of our social accounts at destinationlinux.org/contact—Topics covered in this episode:Ubuntu 19.10 Adding ZFS Support Project Trident Ditches FreeBSD For Linux KDE Plasma 5.17 Released System76 Gets Coreboot—Software Spotlight: xmindTips & Tricks: SailfishOS Guide (sorry for delay)

Rank #2: Destination Linux EP86 – Interview with Matthew Miller of Fedora.
In this special episode of Destination Linux, we have an in-depth interview with Matthew Miller of Fedora. We are big fans of Fedora and Red Hat, especially Ryan :), so we are really excited about this episode! If you’ve never seen an interview episode of Destination Linux then you are in for a treat! Our in-depth interviews are totally unique because we dedicate the entire show to the interview so instead of 5-10 minutes, our interviews can last over an hour since we cover all of the questions we can think of. We also ask our Patrons to submit questions for our interview guests so if you’d like to ask questions to our next guest then please go to https://destinationlinux.org/patreon to become a Patron. Quick Links: Ryan, aka DasGeek = https://dasgeekcommunity.com Michael, with TuxDigital = https://tuxdigital.com Zeb, aka Zebedeeboss = https://youtube.com/zebedeeboss Want to Support the Show? Support on Patreon Order Destination Linux Apparel Want to follow the show and hosts on social media? You can find all of our social accounts at destinationlinux.org/contact

LINUX Unplugged

An open show powered by community LINUX Unplugged takes the best attributes of open collaboration and turns it into a weekly show about Linux.

Rank #1: 326: Dell, elementary, Fedora, oh my!.
Dell expands their linux hardware lineup, why elementary OS's Flatpak support sets the bar, and we chat with Christian Schaller of Red Hat about Fedora 31 and what's around the corner. Plus an update on Ubuntu on the Raspberry Pi 4 and a pick that's just for Wes.Special Guests: Alex Kretzschmar, Brent Gervais, Cassidy James Blaede, Christian F.K. Schaller, Daniel Fore, and Martin Wimpress.Links:Dell bets large on Ubuntu Linux laptops for builders - Mash Viral XPS 13 Inch 10th Gen 4K Laptop | Dell USA Roadmap for Ubuntu official support for the Raspberry Pi 4 | Ubuntu elementary Updates for October, 2019 Cassidy on Twitter: "elementary: spends a ton of time and energy going out of our way to make the sideloading experience for users clear, accurate, and easy. Implements Flatpak, making it easier for users to get apps from anywhere. Random YouTube commenters: LOL SO APPLE, HELLO WALLED GARDEN"JB Extras - Brunch with Brent w/Wimpy JB Extras - Threat hunting 101 1753295 – Pango no longer supports bitmap fonts Better Looking fonts For fedora : Fedora GitHub - tonsky/FiraCode: Monospaced font with programming ligatures The sad state of font rendering on Linux | Infosec scribbles Fedora 31 Performance Is Still Sliding In The Wrong Direction - Benchmarks Against Ubuntu 19.10 + Clear Linux - Phoronix Fedora Workstation 31 – Whats new Home · kexecboot/kexecboot Wiki · GitHub Kernel CVE · Slexy.org Pastebin

Rank #2: Episode 92: Linux Wife, Happy Life. | LUP 92.
We get an update on our resident Mac users switch to Linux & the challenges she's run into. Ubuntu makes a deal with Microsoft and promises to ship snappy on the Internet of Things, but what the heck is a Snap package? And is it truly a transactional system? Plus hints on how Debian PPAs might work, the world's first $9 Linux rig & much more!

User Error

A show about life, Linux, the universe, and everything in between.

Rank #1: Episode 75: Memelord.
Being a good FOSS citizen, forcing popey to answer stupid questions, and personal freedom vs societal harm. Plus paying for podcasts, and how many domains we all own. 00:00:34 What do you owe to upstream? 00:11:14 Should all drugs be legal? 00:20:57 Would you ever subscribe to a paywalled podcast? 00:25:24 How many domain names do you own? 00:30:42 What are your favourite and least favourite memes?

Rank #2: Episode 74: Splitting Fun and Profit.
It's another #AskError episode. The finances of social situations and FOSS projects, automated vehicles, and ways to cheer up. Plus bad language, and being late. Check out Linux Headlines and Self Hosted 00:01:22 How do you deal with splitting up money with friends after a group trip/bbq/dinner? 00:06:20 What’s the best way to organise the finances for a FOSS project? 00:14:49 Do you swear in front of your family and, if not, why not? 00:22:22 Would you ride in an automated car that has no human input or override? 00:26:03 What do you do to feel better when you feel upset? 00:29:16 Would you rather always be 10 minutes late or always be 20 minutes early?

TechSNAP

Systems, Network, and Administration Podcast. Every two weeks TechSNAP covers the stories that impact those of us in the tech industry, and all of us that follow it. Every episode we dedicate a portion of the show to answer audience questions, discuss best practices, and solving your problems.

Rank #1: Episode 193: Don’t Fire IT | TechSNAP 193.
More and more data breaches are leading to blackmail but the stats don’t tell the whole story. We’ll explain. Plus the latest in the Sony hack, and the wider reaction. Plus a great batch of emails & much, much more!

Rank #2: Episode 203: TurboHax | TechSNAP 203.
Lenovo & Google are victims of DNS hijacking, we’ll share the details, Everyone wants you to secure your data, just not from them & how Turbotax profits from Cyber tax fraud! Plus a great batch of your questions, a fantastic round up & much, much more!

Linux Action News

Weekly Linux news and analysis by Chris and Joe. The show every week we hope you'll go to when you want to hear an informed discussion about what’s happening.

Rank #1: Linux Action News 4.
Two Linux desktop classics make big strides, Coreboot joins the Conservancy, and Toyota cars will soon run Linux. Plus newly announced Ambient OS will be open source, just like Android, and its creator Andy Rubin says they plan to take on the Amazon Echo and Google Pixel. This is is an episode about playing to your strengths, and taking over markets.Sponsored By:Ting: Save $25 off your first device, or $25 in service credit if you bring one!Links:Plasma 5.10 Released — Simple by default, powerful when needed.Xfce 4.14 edges closer (along with GTK 3) — Xfce 4.14 is a transitionnal release, where the main goal is to port all components to GTK+3.Fedora 26 delayed — This latest delay pushes Fedora 26 final out to 11 July, assuming no further delays this release cycle.Coreboot joins Conservancy — "By joining Conservancy, coreboot benefits from their project and community organization skills,"Toyota to use Linux in its cars — The Linux Foundation's Automotive Grade Linux project is celebrating its first big-name user, after Toyota said it will employ the OS in the 2018 Camry model it will sell in the United States.ChrisLAS: "@autogradelinux Is it possible for car manufactures to use AGL and also offer Android Auto or Apple CarPlay on top?"2017 CES Demonstrator - [Automotive Linux Wiki] — Hardware spec for AGL demo machine at CES 2017.Essential’s Ambient OS will be open source — Playground CEO Andy Rubin, whose new company Essential unveiled a new premium Android smartphone and Amazon Echo competitor today, says his company’s Ambient OS smart home platform will be open source.Essential faces trademark dispute over name — Spigen, Inc. successfully registered the trademark (Reg. No. 5014095) as early as August 2016. It's an International Class. 9 mark, the category which relates to computers and scientific devices, including smartphones and accessories.

Rank #2: Linux Action News 130.
Fedora arrives from the future, the big players line up behind KernelCI, and researchers claim significant vulnerabilities in Horde. Plus, Google's new dashboard for WordPress and ProtonMail's apps go open source.Links:Fedora 31 is officially here! — This release features GNOME 3.34, which brings significant performance enhancements which will be especially noticeable on lower-powered hardware.Fedora Server brings the latest in cutting-edge open source server software to systems administrators in an easy-to-deploy fashion.Fedora 31 Performance Is Still Sliding In The Wrong DirectionDistributed Linux Testing Platform KernelCI Secures Funding and Long-Term Sustainability — "Testing is traditionally done only on the most common hardware. But because Linux runs on more hardware than any other operating system, it's important to also test it on all that hardware. The Linux Foundation's support is enabling us to expand the great work we started five years ago and sets us up for a bright future with a growing community," Hackers can steal the contents of Horde webmail inboxes with one click — Horde is one of the most popular free and open-source web email systems available. It’s built and maintained by a core team of developers, with contributions from the wider open-source community. It’s used by universities, libraries and many web hosting providers as the default email client.Horde Webmail - XSS + CSRF to SQLi, RCE, Stealing Emails <= v5.2.22 — Horde Webmail - XSS + CSRF to SQLi, RCE, Stealing Emails <= v5.2.22ProtonMail iOS app is open source - ProtonMail Blog — As part of our commitment to security, we are putting all of our software through rigorous, independent third-party audits.Android App SoonSite Kit is now available for all WordPress sites — Site Kit is Google’s official WordPress plugin

Ask Noah Show

The Ask Noah Show is a weekly radio call in show where we take your tech questions or business in tech questions live on the air.The show airs Tuesdays at 6pm CST on asknoahshow.com and at KEQQ 88.3 FM in Grand Forks ND.It's a free call 1-855-450-NOAH so join us and start on your way to owning your operating system, your software, and technology.

Rank #1: Episode 13: Tails of Privacy.
This week we're back in Grand Forks and we give you a deep dive on TAILS linux - the distro designed from the ground up to provide you with a secure computing environment. Plus we talk about universal installers, the security of messengers & your calls. -- The Cliff Notes -- Tails 3.0 Security Distro Tails 3.0 is out Tails Version 3.0 Features Steam is Now on Flatpak Telegram Approached by US Intelligence -- Noobs Corner -- [Check out the Ask Noah Dashboard](www.asknoahshow.com) -- Stay In Touch -- Find all the resources for this show on the Ask Noah Dashboard Ask Noah Dashboard Need more help than a radio show can offer? Altispeed provides commercial IT services and they’re excited to offer you a great deal for listening to the Ask Noah Show. Call today and ask about the discount for listeners of the Ask Noah Show! Altispeed Technologies Contact Noah asknoah [at] jupiterbroadcasting.com -- Twitter -- Noah - Kernellinux Ask Noah Show Altispeed Technologies Jupiter Broadcasting

Rank #2: Episode 30: Doin' Lines of WiFi.
Noah gives us the 30 second elevator pitch and then does a deep dive into this new attack that has plagued wifi. We talk about RedHat on it's way to a 5 billion dollar company and of course your calls. -- The Cliff Notes -- RedHat, 5 Billion Goal Krack Attack High DPI in Linux+Vox Tel Sys -- Stay In Touch -- Find all the resources for this show on the Ask Noah Dashboard Ask Noah Dashboard Need more help than a radio show can offer? Altispeed provides commercial IT services and they’re excited to offer you a great deal for listening to the Ask Noah Show. Call today and ask about the discount for listeners of the Ask Noah Show! Altispeed Technologies Contact Noah asknoah [at] jupiterbroadcasting.com -- Twitter -- Noah - Kernellinux Ask Noah Show Altispeed Technologies Jupiter Broadcasting

Choose Linux

Every 2 weeks, Joe, Ell, and Drew talk about what they've discovered in the world of Linux and Open Source.

Rank #1: 18: Introducing New People to Linux.
There's lots to consider when setting someone up with Linux for the first time. User needs and expectations, distro choice, hardware, and so much more. We discuss our experiences, and ask some fundamental questions.

Rank #2: 3: Raspberry Pi and Retro Gaming.
Jason finally discovers the bottomless well of potential that is the Raspberry Pi, and talks about his first experience with Raspbian. Then Joe and Jason take a nostalgic deep dive into retro gaming on both the Raspberry Pi and the Pinebook. Plus some final thoughts on openSUSE Tumbleweed and Leap. Links:Raspberry Pi — A small and affordable computer that you can use to learn programmingRetroPie — RetroPie allows you to turn your Raspberry Pi, ODroid C1/C2, or PC into a retro-gaming machineLakka — Lakka is a lightweight Linux distribution that transforms a small computer into a full blown retrogaming console.Pinebook — An Affordable 64-bit ARM based Open Source NotebookopenSUSE — The makers' choice for sysadmins, developers and desktop users.

BSD Now

Created by three guys who love BSD, we cover the latest news and have an extensive series of tutorials, as well as interviews with various people from all areas of the BSD community. It also serves as a platform for support and questions. We love and advocate FreeBSD, OpenBSD, NetBSD, DragonFlyBSD and TrueOS. Our show aims to be helpful and informative for new users that want to learn about them, but still be entertaining for the people who are already pros.The show airs on Wednesdays at 2:00PM (US Eastern time) and the edited version is usually up the following day.

Rank #1: 320: Codebase: Neck Deep.
Headlines FreeBSD and custom firmware on the Google Pixelbook FreeBSD and custom firmware on the Google Pixelbook Back in 2015, I jumped on the ThinkPad bandwagon by getting an X240 to run FreeBSD on. Unlike most people in the ThinkPad crowd, I actually liked the clickpad and didn\u2019t use the trackpoint much. But this summer I\u2019ve decided that it was time for something newer. I wanted something.. lighter and thinner (ha, turns out this is actually important, I got tired of carrying a T H I C C laptop - Apple was right all along); with a 3:2 display (why is Lenovo making these Serious Work\u2122 laptops 16:9 in the first place?? 16:9 is awful in below-13-inch sizes especially); with a HiDPI display (and ideally with a good size for exact 2x scaling instead of fractional); with USB-C ports; without a dGPU, especially without an NVIDIA GPU; assembled with screws and not glue (I don\u2019t necessarily need expansion and stuff in a laptop all that much, but being able to replace the battery without dealing with a glued chassis is good); supported by FreeBSD of course (\u201csome development required\u201d is okay but I\u2019m not going to write big drivers); how about something with open source firmware, that would be fun. I was considering a ThinkPad X1 Carbon from an old generation - the one from the same year as the X230 is corebootable, so that\u2019s fun. But going back in processor generations just doesn\u2019t feel great. I want something more efficient, not less! And then I discovered the Pixelbook. Other than the big huge large bezels around the screen, I liked everything about it. Thin aluminum design, a 3:2 HiDPI screen, rubber palm rests (why isn\u2019t every laptop ever doing that?!), the \u201cconvertibleness\u201d (flip the screen around to turn it into.. something rather big for a tablet, but it is useful actually), a Wacom touchscreen that supports a pen, mostly reasonable hardware (Intel Wi-Fi), and that famous coreboot support (Chromebooks\u2019 stock firmware is coreboot + depthcharge). So here it is, my new laptop, a Google Pixelbook. Conclusion Pixelbook, FreeBSD, coreboot, EDK2 good. Seriously, I have no big words to say, other than just recommending this laptop to FOSS enthusiasts :) Porting NetBSD to the AMD x86-64: a case study in OS portability Abstract NetBSD is known as a very portable operating system, currently running on 44 different architectures (12 different types of CPU). This paper takes a look at what has been done to make it portable, and how this has decreased the amount of effort needed to port NetBSD to a new architecture. The new AMD x86-64 architecture, of which the specifications were published at the end of 2000, with hardware to follow in 2002, is used as an example. Portability Supporting multiple platforms was a primary goal of the NetBSD project from the start. As NetBSD was ported to more and more platforms, the NetBSD kernel code was adapted to become more portable along the way. General Generally, code is shared between ports as much as possible. In NetBSD, it should always be considered if the code can be assumed to be useful on other architectures, present or future. If so, it is machine-independent and put it in an appropriate place in the source tree. When writing code that is intended to be machine-independent, and it contains conditional preprocessor statements depending on the architecture, then the code is likely wrong, or an extra abstraction layer is needed to get rid of these statements. Types Assumptions about the size of any type are not made. Assumptions made about type sizes on 32-bit platforms were a large problem when 64-bit platforms came around. Most of the problems of this kind had to be dealt with when NetBSD was ported to the DEC Alpha in 1994. A variation on this problem had to be dealt with with the UltraSPARC (sparc64) port in 1998, which is 64-bit, but big endian (vs. the little-endianness of the Alpha). When interacting with datastructures of a fixed size, such as on-disk metadata for filesystems, or datastructures directly interpreted by device hardware, explicitly sized types are used, such as uint32_t, int8_t, etc. Conclusions and future work The port of NetBSD to AMD's x86-64 architecture was done in six weeks, which confirms NetBSD's reputation as being a very portable operating system. One week was spent setting up the cross-toolchain and reading the x86-64 specifications, three weeks were spent writing the kernel code, one week was spent writing the userspace code, and one week testing and debugging it all. No problems were observed in any of the machine-independent parts of the kernel during test runs; all (simulated) device drivers, file systems, etc, worked without modification. News Roundup ZFS performance really does degrade as you approach quota limits Every so often (currently monthly), there is an "OpenZFS leadership meeting". What this really means is 'lead developers from the various ZFS implementations get together to talk about things'. Announcements and meeting notes from these meetings get sent out to various mailing lists, including the ZFS on Linux ones. In the September meeting notes, I read a very interesting (to me) agenda item: Relax quota semantics for improved performance (Allan Jude) Problem: As you approach quotas, ZFS performance degrades. Proposal: Can we have a property like quota-policy=strict or loose, where we can optionally allow ZFS to run over the quota as long as performance is not decreased. This is very interesting to me because of two reasons. First, in the past we have definitely seen significant problems on our OmniOS machines, both when an entire pool hits a quota limit and when a single filesystem hits a refquota limit. It's nice to know that this wasn't just our imagination and that there is a real issue here. Even better, it might someday be improved (and perhaps in a way that we can use at least some of the time). Second, any number of people here run very close to and sometimes at the quota limits of both filesystems and pools, fundamentally because people aren't willing to buy more space. We have in the past assumed that this was relatively harmless and would only make people run out of space. If this is a known issue that causes serious performance degradation, well, I don't know if there's anything we can do, but at least we're going to have to think about it and maybe push harder at people. The first step will have to be learning the details of what's going on at the ZFS level to cause the slowdown. (It's apparently similar to what happens when the pool is almost full, but I don't know the specifics of that either.) With that said, we don't seem to have seen clear adverse effects on our Linux fileservers, and they've definitely run into quota limits (repeatedly). One possible reason for this is that having lots of RAM and SSDs makes the effects mostly go away. Another possible reason is that we haven't been looking closely enough to see that we're experiencing global slowdowns that correlate to filesystems hitting quota limits. We've had issues before with somewhat subtle slowdowns that we didn't understand (cf), so I can't discount that we're having it happen again. Fixing up KA9Q-unix, or "neck deep in 30 year old codebases.." I'll preface this by saying - yes, I'm still neck deep in FreeBSD's wifi stack and 802.11ac support, but it turns out it's slow work to fix 15 year old locking related issues that worked fine on 11abg cards, kinda worked ok on 11n cards, and are terrible for these 11ac cards. I'll .. get there. Anyhoo, I've finally been mucking around with AX.25 packet radio. I've been wanting to do this since I was a teenager and found out about its existence, but back in high school and .. well, until a few years ago really .. I didn't have my amateur radio licence. But, now I do, and I've done a bunch of other stuff with a bunch of other radios. The main stumbling block? All my devices are either Apple products or run FreeBSD - and none of them have useful AX.25 stacks. The main stacks of choice these days run on Linux, Windows or are a full hardware TNC. So yes, I was avoiding hacking on AX.25 stuff because there wasn't a BSD compatible AX.25 stack. I'm 40 now, leave me be. But! A few weeks ago I found that someone was still running a packet BBS out of San Francisco. And amazingly, his local node ran on FreeBSD! It turns out Jeremy (KK6JJJ) ported both an old copy of KA9Q and N0ARY-BBS to run on FreeBSD! Cool! I grabbed my 2m radio (which is already cabled up for digital modes), compiled up his KA9Q port, figured out how to get it to speak to Direwolf, and .. ok. Well, it worked. Kinda. HAMMER2 and fsck for review HAMMER2 is Copy on Write, meaning changes are made to copies of existing data. This means operations are generally atomic and can survive a power outage, etc. (You should read up on it!) However, there\u2019s now a fsck command, useful if you want a report of data validity rather than any manual repair process. [The return of startx(1) for non-root users with some caveats Mark Kettenis (kettenis@) has recently committed changes which restore a certain amount of startx(1)/xinit(1) functionality for non-root users. The commit messages explain the situation: CVSROOT: /cvsModule name: srcChanges by: kettenis@cvs.openbsd.org 2019/09/15 06:25:41Modified files: etc/etc.amd64 : fbtab etc/etc.arm64 : fbtab etc/etc.hppa : fbtab etc/etc.i386 : fbtab etc/etc.loongson: fbtab etc/etc.luna88k: fbtab etc/etc.macppc : fbtab etc/etc.octeon : fbtab etc/etc.sgi : fbtab etc/etc.sparc64: fbtab Log message:Add ttyC4 to lost of devices to change when logging in on ttyC0 (and in some cases also the serial console) such that X can use it as its VT when running without root privileges.ok jsg@, matthieu@CVSROOT: /cvsModule name: xenocaraChanges by: kettenis@cvs.openbsd.org 2019/09/15 06:31:08Modified files: xserver/hw/xfree86/common: xf86AutoConfig.c Log message:Add modesetting driver as a fall-back when appropriate such that we can use it when running without root privileges which prevents us from scanning the PCI bus.This makes startx(1)/xinit(1) work again on modern systems with inteldrm(4), radeondrm(4) and amdgpu(4). In some cases this will result in using a different driver than with xenodm(4) which may expose issues (e.g. when we prefer the intel Xorg driver) or loss of acceleration (e.g. older cards supported by radeondrm(4)).ok jsg@, matthieu@ Beastie Bits ASCII table and history. Or, why does Ctrl+i insert a Tab in my terminal? Sourcehut makes BSD software better Chaosnet for Unx The Vim-Inspired Editor with a Linguistic Twist bhyvearm64: CPU and Memory Virtualization on Armv8.0-A DefCon25 - Are all BSD created Equally - A Survey of BSD Kernel vulnerabilities Feedback/Questions Tim - GSoC project ideas for pf rule syntax translation Brad - Steam on FreeBSD Ruslan - FreeBSD Quarterly Status Report - Q2 2019 Send questions, comments, show ideas/topics, or stories you want mentioned on the show to feedback@bsdnow.tv Your browser does not support the HTML5 video tag.

Rank #2: Episode 265: Software Disenchantment | BSD Now 265.
We report from our experiences at EuroBSDcon, disenchant software, LLVM 7.0.0 has been released, Thinkpad BIOS update options, HardenedBSD Foundation announced, and ZFS send vs. rsync. ##Headlines ###[FreeBSD DevSummit & EuroBSDcon 2018 in Romania] Your hosts are back from EuroBSDcon 2018 held in Bucharest, Romania this year. The first two days of the conference are used for tutorials and devsummits (FreeBSD and NetBSD), while the last two are for talks. Although Benedict organized the devsummit in large parts, he did not attend it this year. He held his Ansible tutorial in the morning of the first day, followed by Niclas Zeising’s new ports and poudriere tutorial (which had a record attendance). It was intended for beginners that had never used poudriere before and those who wanted to create their first port. The tutorial was well received and Niclas already has ideas for extending it for future conferences. On the second day, Benedict took Kirk McKusick’s “An Introduction to the FreeBSD Open-Source Operating System” tutorial, held as a one full day class this year. Although it was reduced in content, it went into enough depth of many areas of the kernel and operating system to spark many questions from attendees. Clearly, this is a good start into kernel programming as Kirk provides enough material and backstories to understand why certain things are implemented as they are. Olivier Robert took [https://www.talegraph.com/tales/l2o9ltrvsE](pictures from the devsummit) and created a nice gallery out of it. Devsummit evenings saw dinners at two restaurants that allowed developers to spend some time talking over food and drinks. The conference opened on the next day with the opening session held by Mihai Carabas. He introduced the first keynote speaker, a colleague of his who presented “Lightweight virtualization with LightVM and Unikraft”. Benedict helped out at the FreeBSD Foundation sponsor table and talked to people. He saw the following talks in between: Selfhosting as an alternative to the public cloud (by Albert Dengg) Using Boot Environments at Scale (by Allan Jude) Livepatching FreeBSD kernel (by Maciej Grochowski) FreeBSD: What to (Not) Monitor (by Andrew Fengler) FreeBSD Graphics (by Niclas Zeising) Allan spent a lot of time talking to people and helping track down issues they were having, in addition to attending many talks: Hacking together a FreeBSD presentation streaming box – For as little as possible (by Tom Jones) Introduction of FreeBSD in new environments (by Baptiste Daroussin) Keynote: Some computing and networking historical perspectives (by Ron Broersma) Livepatching FreeBSD kernel (by Maciej Grochowski) FreeBSD: What to (Not) Monitor (by Andrew Fengler) Being a BSD user (by Roller Angel) From “Hello World” to the VFS Layer: building a beadm for DragonFly BSD (by Michael Voight) We also met the winner of our Power Bagel raffle from Episode 2^8. He received the item in the meantime and had it with him at the conference, providing a power outlet to charge other people’s devices. During the closing session, GroffTheBSDGoat was handed over to Deb Goodkin, who will bring the little guy to the Grace Hopper Celebration of Women in Computing conference and then to MeetBSD later this year. It was also revealed that next year’s EuroBSDcon will be held in Lillehammer, Norway. Thanks to all the speakers, helpers, sponsors, organizers, and attendees for making it a successful conferences. There were no talks recorded this year, but the slides will be uploaded to the EuroBSDcon website in a couple of weeks. The OpenBSD talks are already available, so check them out. ###Software disenchantment I’ve been programming for 15 years now. Recently our industry’s lack of care for efficiency, simplicity, and excellence started really getting to me, to the point of me getting depressed by my own career and the IT in general. Modern cars work, let’s say for the sake of argument, at 98% of what’s physically possible with the current engine design. Modern buildings use just enough material to fulfill their function and stay safe under the given conditions. All planes converged to the optimal size/form/load and basically look the same. Only in software, it’s fine if a program runs at 1% or even 0.01% of the possible performance. Everybody just seems to be ok with it. People are often even proud about how much inefficient it is, as in “why should we worry, computers are fast enough”: @tveastman: I have a Python program I run every day, it takes 1.5 seconds. I spent six hours re-writing it in rust, now it takes 0.06 seconds. That efficiency improvement means I’ll make my time back in 41 years, 24 days :-) You’ve probably heard this mantra: “programmer time is more expensive than computer time”. What it means basically is that we’re wasting computers at an unprecedented scale. Would you buy a car if it eats 100 liters per 100 kilometers? How about 1000 liters? With computers, we do that all the time. Everything is unbearably slow Look around: our portable computers are thousands of times more powerful than the ones that brought man to the moon. Yet every other webpage struggles to maintain a smooth 60fps scroll on the latest top-of-the-line MacBook Pro. I can comfortably play games, watch 4K videos but not scroll web pages? How is it ok? Google Inbox, a web app written by Google, running in Chrome browser also by Google, takes 13 seconds to open moderately-sized emails: It also animates empty white boxes instead of showing their content because it’s the only way anything can be animated on a webpage with decent performance. No, decent doesn’t mean 60fps, it’s rather “as fast as this web page could possibly go”. I’m dying to see web community answer when 120Hz displays become mainstream. Shit barely hits 60Hz already. Windows 10 takes 30 minutes to update. What could it possibly be doing for that long? That much time is enough to fully format my SSD drive, download a fresh build and install it like 5 times in a row. Pavel Fatin: Typing in editor is a relatively simple process, so even 286 PCs were able to provide a rather fluid typing experience. Modern text editors have higher latency than 42-year-old Emacs. Text editors! What can be simpler? On each keystroke, all you have to do is update tiny rectangular region and modern text editors can’t do that in 16ms. It’s a lot of time. A LOT. A 3D game can fill the whole screen with hundreds of thousands (!!!) of polygons in the same 16ms and also process input, recalculate the world and dynamically load/unload resources. How come? As a general trend, we’re not getting faster software with more features. We’re getting faster hardware that runs slower software with the same features. Everything works way below the possible speed. Ever wonder why your phone needs 30 to 60 seconds to boot? Why can’t it boot, say, in one second? There are no physical limitations to that. I would love to see that. I would love to see limits reached and explored, utilizing every last bit of performance we can get for something meaningful in a meaningful way. Everything is HUUUUGE And then there’s bloat. Web apps could open up to 10× faster if you just simply block all ads. Google begs everyone to stop shooting themselves in their feet with AMP initiative—a technology solution to a problem that doesn’t need any technology, just a little bit of common sense. If you remove bloat, the web becomes crazy fast. How smart do you have to be to understand that? Android system with no apps takes almost 6 Gb. Just think for a second how obscenely HUGE that number is. What’s in there, HD movies? I guess it’s basically code: kernel, drivers. Some string and resources too, sure, but those can’t be big. So, how many drivers do you need for a phone? Windows 95 was 30Mb. Today we have web pages heavier than that! Windows 10 is 4Gb, which is 133 times as big. But is it 133 times as superior? I mean, functionally they are basically the same. Yes, we have Cortana, but I doubt it takes 3970 Mb. But whatever Windows 10 is, is Android really 150% of that? Google keyboard app routinely eats 150 Mb. Is an app that draws 30 keys on a screen really five times more complex than the whole Windows 95? Google app, which is basically just a package for Google Web Search, is 350 Mb! Google Play Services, which I do not use (I don’t buy books, music or videos there)—300 Mb that just sit there and which I’m unable to delete. All that leaves me around 1 Gb for my photos after I install all the essential (social, chats, maps, taxi, banks etc) apps. And that’s with no games and no music at all! Remember times when an OS, apps and all your data fit on a floppy? Your desktop todo app is probably written in Electron and thus has userland driver for Xbox 360 controller in it, can render 3d graphics and play audio and take photos with your web camera. A simple text chat is notorious for its load speed and memory consumption. Yes, you really have to count Slack in as a resource-heavy application. I mean, chatroom and barebones text editor, those are supposed to be two of the less demanding apps in the whole world. Welcome to 2018. At least it works, you might say. Well, bigger doesn’t imply better. Bigger means someone has lost control. Bigger means we don’t know what’s going on. Bigger means complexity tax, performance tax, reliability tax. This is not the norm and should not become the norm. Overweight apps should mean a red flag. They should mean run away scared. Better world manifesto I want to see progress. I want change. I want state-of-the-art in software engineering to improve, not just stand still. I don’t want to reinvent the same stuff over and over, less performant and more bloated each time. I want something to believe in, a worthy end goal, a future better than what we have today, and I want a community of engineers who share that vision. What we have today is not progress. We barely meet business goals with poor tools applied over the top. We’re stuck in local optima and nobody wants to move out. It’s not even a good place, it’s bloated and inefficient. We just somehow got used to it. So I want to call it out: where we are today is bullshit. As engineers, we can, and should, and will do better. We can have better tools, we can build better apps, faster, more predictable, more reliable, using fewer resources (orders of magnitude fewer!). We need to understand deeply what are we doing and why. We need to deliver: reliably, predictably, with topmost quality. We can—and should–take pride in our work. Not just “given what we had…”—no buts! I hope I’m not alone at this. I hope there are people out there who want to do the same. I’d appreciate if we at least start talking about how absurdly bad our current situation in the software industry is. And then we maybe figure out how to get out. ##News Roundup ###[llvm-announce] LLVM 7.0.0 Release I am pleased to announce that LLVM 7 is now available. Get it here: https://llvm.org/releases/download.html#7.0.0 The release contains the work on trunk up to SVN revision 338536 plus work on the release branch. It is the result of the community's work over the past six months, including: function multiversioning in Clang with the 'target' attribute for ELF-based x86/x86_64 targets, improved PCH support in clang-cl, preliminary DWARF v5 support, basic support for OpenMP 4.5 offloading to NVPTX, OpenCL C++ support, MSan, X-Ray and libFuzzer support for FreeBSD, early UBSan, X-Ray and libFuzzer support for OpenBSD, UBSan checks for implicit conversions, many long-tail compatibility issues fixed in lld which is now production ready for ELF, COFF and MinGW, new tools llvm-exegesis, llvm-mca and diagtool. And as usual, many optimizations, improved diagnostics, and bug fixes. For more details, see the release notes: https://llvm.org/releases/7.0.0/docs/ReleaseNotes.html https://llvm.org/releases/7.0.0/tools/clang/docs/ReleaseNotes.html https://llvm.org/releases/7.0.0/tools/clang/tools/extra/docs/ReleaseNotes.html https://llvm.org/releases/7.0.0/tools/lld/docs/ReleaseNotes.html Thanks to everyone who helped with filing, fixing, and code reviewing for the release-blocking bugs! Special thanks to the release testers and packagers: Bero Rosenkränzer, Brian Cain, Dimitry Andric, Jonas Hahnfeld, Lei Huang Michał Górny, Sylvestre Ledru, Takumi Nakamura, and Vedant Kumar. For questions or comments about the release, please contact the community on the mailing lists. Onwards to LLVM 8! Cheers, Hans ###Update your Thinkpad’s bios with Linux or OpenBSD Get your new bios At first, go to the Lenovo website and download your new bios: Go to lenovo support Use the search bar to find your product (example for me, x270) Choose the right product (if necessary) and click search On the right side, click on Update Your System Click on BIOS/UEFI Choose *BIOS Update (Bootable CD) for Windows * Download For me the file is called like this : r0iuj25wd.iso Extract bios update Now you will need to install geteltorito. With OpenBSD: $ doas pkg_add geteltorito quirks-3.7 signed on 2018-09-09T13:15:19Z geteltorito-0.6: ok With Debian: $ sudo apt-get install genisoimage Now we will extract the bios update : $ geteltorito -o bios_update.img r0iuj25wd.iso Booting catalog starts at sector: 20 Manufacturer of CD: NERO BURNING ROM VER 12 Image architecture: x86 Boot media type is: harddisk El Torito image starts at sector 27 and has 43008 sector(s) of 512 Bytes Image has been written to file "bios_update.img". This will create a file called bios_update.img. Put the image on an USB key CAREFULL : on my computer, my USB key is sda1 on Linux and sd1 on OpenBSD. Please check twice on your computer the name of your USB key. With OpenBSD : $ doas dd if=bios_update.img of=/dev/rsd1c With Linux : $ sudo dd if=bios_update.img of=/dev/sda Now all you need is to reboot, to boot on your USB key and follow the instructions. Enjoy 😉 ###Announcing The HardenedBSD Foundation In June of 2018, we announced our intent to become a not-for-profit, tax-exempt 501©(3) organization in the United States. It took a dedicated team months of work behind-the-scenes to make that happen. On 06 September 2018, HardenedBSD Foundation Corp was granted 501©(3) status, from which point all US-based persons making donations can deduct the donation from their taxes. We are grateful for those who contribute to HardenedBSD in whatever way they can. Thank you for making HardenedBSD possible. We look forward to a bright future, driven by a helpful and positive community. ###How you migrate ZFS filesystems matters If you want to move a ZFS filesystem around from one host to another, you have two general approaches; you can use ‘zfs send’ and ‘zfs receive’, or you can use a user level copying tool such as rsync (or ‘tar -cf | tar -xf’, or any number of similar options). Until recently, I had considered these two approaches to be more or less equivalent apart from their convenience and speed (which generally tilted in favour of ‘zfs send’). It turns out that this is not necessarily the case and there are situations where you will want one instead of the other. We have had two generations of ZFS fileservers so far, the Solaris ones and the OmniOS ones. When we moved from the first generation to the second generation, we migrated filesystems across using ‘zfs send’, including the filesystem with my home directory in it (we did this for various reasons). Recently I discovered that some old things in my filesystem didn’t have file type information in their directory entries. ZFS has been adding file type information to directories for a long time, but not quite as long as my home directory has been on ZFS. This illustrates an important difference between the ‘zfs send’ approach and the rsync approach, which is that zfs send doesn’t update or change at least some ZFS on-disk data structures, in the way that re-writing them from scratch from user level does. There are both positives and negatives to this, and a certain amount of rewriting does happen even in the ‘zfs send’ case (for example, all of the block pointers get changed, and ZFS will re-compress your data as applicable). I knew that in theory you had to copy things at the user level if you wanted to make sure that your ZFS filesystem and everything in it was fully up to date with the latest ZFS features. But I didn’t expect to hit a situation where it mattered in practice until, well, I did. Now I suspect that old files on our old filesystems may be partially missing a number of things, and I’m wondering how much of the various changes in ‘zfs upgrade -v’ apply even to old data. (I’d run into this sort of general thing before when I looked into ext3 to ext4 conversion on Linux.) With all that said, I doubt this will change our plans for migrating our ZFS filesystems in the future (to our third generation fileservers). ZFS sending and receiving is just too convenient, too fast and too reliable to give up. Rsync isn’t bad, but it’s not the same, and so we only use it when we have to (when we’re moving only some of the people in a filesystem instead of all of them, for example). PS: I was going to try to say something about what ‘zfs send’ did and didn’t update, but having looked briefly at the code I’ve concluded that I need to do more research before running my keyboard off. In the mean time, you can read the OpenZFS wiki page on ZFS send and receive, which has plenty of juicy technical details. PPS: Since eliminating all-zero blocks is a form of compression, you can turn zero-filled files into sparse files through a ZFS send/receive if the destination has compression enabled. As far as I know, genuine sparse files on the source will stay sparse through a ZFS send/receive even if they’re sent to a destination with compression off. ##Beastie Bits BSD Users Stockholm Meetup #4: Tuesday, November 13, 2018 at 18:00 BSD Poland User Group: Next Meeting: October 11, 2018, 18:15 - 21:15 at Warsaw University of Technology n2k18 Hackathon report: Ken Westerback (krw@) on disklabel(8) work, dhclient(8) progress Running MirageOS Unikernels on OpenBSD in vmm (Now Works) vmm(4) gets support for qcow2 MeetBSD and SecurityBsides Colin Percival reduced FreeBSD startup time from 10627ms (11.2) to 4738ms (12.0) FreeBSD 11.1 end-of-life KnoxBug: Monday, October 1, 2018 at 18:00: Real-world Performance Advantages of NVDIMM and NVMe: Case Study with OpenZFS ##Feedback/Questions Todd - 2 Nics, 1 bhyve and a jail cell Thomas - Deep Dive Morgan - Send/Receive to Manage Fragmentation? Dominik - hierarchical jails -> networking Send questions, comments, show ideas/topics, or stories you want mentioned on the show to feedback@bsdnow.tv

Coder Radio

A weekly talk show taking a pragmatic look at the art and business of Software Development and related technologies.

Rank #1: Go Go Golang | CR 203.
A little reflective & contemplative after a successful human forking, our hosts reflect on a well stated OO vs Functional rant, the bot frameworks that impress & the surprisingly great use case for Go. Plus the 800 pound snake in the room, a quick Linux switch update for Mike & more!

Rank #2: Skills to Pay the Bills | CR 267.
We solve some problems, and then go down the rat hole of self hacking to increase work, productivity & our health. Then we gleefully watch as Coding Bootcamps begin to collapse & discuss the misleading metric that led them to their doom. Plus Mike shares some straightforward code that solved a very annoying problem.

FLOSS Weekly (MP3)

We're not talking dentistry here; FLOSS all about Free Libre Open Source Software. Join host Randal Schwartz and his rotating panel of co-hosts every Wednesday as they talk with the most interesting and important people in the Open Source and Free Software community.Records live every Wednesday at 12:30pm Eastern / 9:30am Pacific / 17:30 UTC.

Rank #1: FLOSS Weekly 554: Hotrock.
Hotrock is a leading-edge event intelligence platform that allows IT leaders to navigate data overload, cut through the silos and potentially reduce costs. With digital transformation and the digital customer experience, a high priority on corporate agendas, next-generation event management solutions such as Hotrock can deliver meaningful business results in terms of ensuring applications and systems are continuously available and optimized for best performance. Hosts: Randal Schwartz and Jonathan Bennett Guests: Troy McSimov and Josh Mahar Download or subscribe to this show at https://twit.tv/shows/floss-weekly Here's what's coming up for FLOSS in the future. Think your open source project should be on FLOSS Weekly? Email Randal at merlyn@stonehenge.com Thanks to Lullabot's Jeff Robbins, web designer and musician, for our theme music. Sponsors: go.itpro.tv/floss promo code FLOSS30 WWT.COM/TWIT

Rank #2: FLOSS Weekly 553: Hacker Public Radio.
Hacker Public Radio is a podcast that is dedicated to sharing knowledge. Its shows are crowd-sourced from the community, with no restriction on length nor topic as long as the show is not spam and are of interest to hackers. Hosts: Randal Schwartz and Aaron Newcomb Guests: Ken Fallon and Kevin OBrien Download or subscribe to this show at https://twit.tv/shows/floss-weekly Here's what's coming up for FLOSS in the future. Think your open source project should be on FLOSS Weekly? Email Randal at merlyn@stonehenge.com Thanks to Lullabot's Jeff Robbins, web designer and musician, for our theme music. Sponsors: Melissa.com/twit hover.com/twit

Hacker Public Radio

Hacker Public Radio is an podcast that releases shows every weekday Monday through Friday. Our shows are produced by the community (you) and can be on any topic that are of interest to hackers and hobbyists.

Rank #1: HPR2965: instant feedback for students in maths.
I'm trying to make sure that this show doesn't come across as as advertisment placement on HPR I won't provide a link to our application (which wouldn't help a lot anyway as we don't really have much of a web site anyway.). However I'll link to some of the technical components: The Computer Algebra System we use is called Maxima, its history goes back to the early 80s. It's written in common lisp. We have considered switching to SymPy as a more modern alternative. SymPy doesn't offer the feature completeness Maxima does, though. It has still a long way to go. Our servers run Debian. The current version is written in PHP but we are working on a new version based on dockerized Django with a JS frontend in Ember along with some micro services written in Go, Python and PHP. To render math we use MathJax in the current version and KaTeX in the new version. The PDF-export of worksheets is of course done in LaTeX.

Rank #2: HPR2964: Bolos and Bowties: Neckwear for Nerds.
It's probably because of a non-conformist streak in me, but I've never liked traditional neckties. In fact I never wanted to wear any ties until I got my first bolo tie, which was sufficiently different from everyone else and easy enough to put on that I decided I could wear bolo ties. I've built a collection of about a dozen of these and they always get positive comments, especially the ones made from recycled circuit boards. Recently I've expanded my horizons to include bowties, which have a more formal appearance and the added nerd factor of being difficult to tie for most people. In this episode I talk about my ties. Click image to view photo gallery Links Circuit Breaker Labs upcycled Jewelry made from circuit boards. 10 Reasons to Wear a Bowtie

Syscast: talking linux, open source, web development and system administration (DevOps)

Talking Linux, open source and system administration

Rank #1: 3: Managing Secrets with Vault, with Seth Vargo.
This 3rd episode of SysCast revolves around secrets: managing API keys, passwords, tokens, … with Hashicorp’s Vault. I’m joined by Seth Vargo from Hashicorp who explains how Vault works, its internals, different use cases, key management & rollover and lots of interesting details about Vault itself. If you’re storing your passwords inside your git repository or managing them by hand in yaml/ini files, listen to this episode to learn how Vault can help store credentials more securely and automate secret management for you. Once again, if you have a minute or 2, leave a rating on iTunes. Shownotes @sethvargo on Twitter VaultProject.io the official website The interactive demo of Vault Consul Template Using HashiCorp’s Vault with Chef (applicable to Puppet/Ansible, too) Feedback? Let me know via podcast@sysca.st or at @mattiasgeniar on Twitter.

Rank #2: 7: Config Management Camp: Kubernetes, Sysdig & Mgmt.
I’m back! Sort of. This is a mono-episode where it’s just me talking about Config Management Camp, a conference held in Gent in February 2017. I recap a few interesting talks and projects I saw. This is an episode that I recorded in the car. So there might be audio quality concerns and I’m very much looking for feedback on this format: is it hearable? Does it bother you? Should I do more of these recaps? Please let me know via e-mail at m@ttias.be or on Twitter at @mattiasgeniar. Shownotes Config Management Camp Kubernetes Next gen config management: mgmt Digging into Kubernetes with Sysdig

Open Source Security Podcast

A security podcast geared towards those looking to better understand security topics of the day. Hosted by Kurt Seifried and Josh Bressers covering a wide range of topics including IoT, application security, operational security, cloud, devops, and security news of the day. There is a special open source twist to the discussion often giving a unique perspective on any given topic.

Rank #1: Episode 154 - Chat with the authors of the book "The Fifth Domain".
Josh and Kurt talk to the authors of a new book The Fifth Domain. Dick Clarke and Rob Knake join us to discuss the book, cybersecurity, US policy, how we got where we are today and what the future holds for cybersecurity. Show Notes The Fifth Domain Dick Clarke Rob Knake Future State Podcast

Rank #2: Episode 114 - Review of "Click Here to Kill Everybody".
Josh and Kurt review Bruce Schneier's new book Click Here to Kill Everybody. It's a book everyone could benefit from reading. It does a nice job explaining many existing security problems in a simple manner.