LINUX Unplugged

You should never host your own email, so we’ve gone and done just that. What we learned trying to build an email server in 2021.

Plus our take on Ubuntu 21.04, become a master of your schedule with our pick, and a Garage Sale update.

Sponsored By:

• Linode Cloud Hosting: A special offer for all Linux Unplugged Podcast listeners and new Linode customers, visit linode.com/unplugged, and receive $100 towards your new account.
• MailRoute: Try out MailRoute today and get 10% off the lifetime of your account and start with a 30-day free trial, no credit card required.
• A Cloud Guru: By the end of this course, you will feel comfortable working with a large variety of networking tools and configurations to manage complex Linux networking implementations.

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Links:

• Hirsute Hippo Release Notes — These release notes for Ubuntu 21.04 (Hirsute Hippo) provide an overview of the release and document the known issues with Ubuntu and its flavours.
• Ubuntu 21.04 Release Date & New Features - OMG! Ubuntu!
• Announcing the Ubuntu Desktop Team Indaba (AMA) - April 23, 2021 @ 3PM UTC — This will be a live stream featuring members of the Ubuntu Desktop Team and members of the community. We will include special guests from the community as well as take questions from via live chat.
• LINUX Unplugged 396: How Linux Got to Mars — Tim Canham, the Mars Helicopter Operations Lead, shares Linux’s origins at JPL and how it ended up running on multiple boxes on Mars.
• Nasa successfully flies small helicopter on Mars — The drone, called Ingenuity, was airborne for less than a minute, but Nasa is celebrating what represents the first powered, controlled flight by an aircraft on another world.
• NASA Helicopter Hovers Over Mars In 1st Powered Flight On Another Planet
• Humans have just flown a rotorcraft on an alien planet for the first time in history.
• Linux Action News 185 — The major shift in the Linux landscape this week that was hardly noticed, and our thoughts on COSMIC from System76.
• Jupiter Broadcasting Garage Sale
• Jupiter Broadcasting Telegram
• All Jupiter Broadcasting Shows
• docker-mailserver — A fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) using Docker.
• Docker Mailserver Docs
• DMARC Guide | Global Cyber Alliance | Email Authentication Made Easy
• GitHub - calendso/calendso: The open-source Calendly alternative.
• System76 Blog — COSMIC to Arrive in June Release of Pop!_OS 21.04 — What is COSMIC? It’s a refined solution that makes the desktop easier to use, yet more powerful and efficient for our users through customization.

Do as we say, not as we do. This week we're setting off to host our own email. We'll cover the basics, what's we're using, and why.

Plus an update on Jupiter Broadcasting going independent, community news, and more.

Special Guest: Martin Wimpress.

Sponsored By:

• Linode Cloud Hosting: A special offer for all Linux Unplugged Podcast listeners and new Linode customers, visit linode.com/unplugged, and receive $100 towards your new account.
• New JB Stickers: Own a bit of Jupiter Broadcasting history, while making way for the new!
• A Cloud Guru: Hundreds of courses, thousands of hands-on labs.

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• Google Online Security Blog: Rust in the Android platform — We're excited to announce that the Android Open Source Project (AOSP) now supports the Rust programming language for developing the OS itself.
• Mike Kelly on Twitter — I’ve been curious to try out @rustlang and wanted to celebrate @LinuxUnplugged episode 400… so I combined both in a silly fun little project. Check it out… a mini-website powered by Rust… @ChrisLAS and @wespayne would be proud!
• Mars Helicopter Flight Delayed — During a high-speed spin test of the rotors on Friday, the command sequence controlling the test ended early due to a “watchdog” timer expiration.
• Work Progresses Toward Ingenuity’s First Flight on Mars — Over the weekend, the team considered and tested multiple potential solutions to this issue, concluding that minor modification and reinstallation of Ingenuity’s flight control software is the most robust path forward.
• All Jupiter Broadcasting Shows
• Mailcow.email — The mailserver suite with the ‘moo’ – 🐮 + 🐋 = 💕.
• Mailcow: dockerized documentation
• SOGo — SOGo is a fully supported and trusted groupware server with a focus on scalability and open standards.
• Zimbra: Open Source Secure Private Business Email & Collaboration
• Mail-in-a-Box Setup Guide
• Jupiter Garage
• GNOME Designers Explore a ‘Bottom Bar’ Layout for GNOME Shell

Old friends and new join us on a quest to celebrate four hundred episodes.

Special Guests: Alex Kretzschmar, Corry Clinton, Drew DeVore, and Graham Morrison.

Sponsored By:

• Linode Cloud Hosting: A special offer for all Linux Unplugged Podcast listeners and new Linode customers, visit linode.com/unplugged, and receive $100 towards your new account.
• A Cloud Guru: This is the Exam Prep and Final Exam course for the SUSE Certified Administrator in Enterprise Linux 15 exam, 050-754.
• LUP LUG Beer Stein: Share a brew with the Virtual LUG!

Support LINUX Unplugged

Links:

• Too Much Choice | LINUX Unplugged — Does the Linux community lean on the age old excuse of choice, to brush of the real limitations of desktop Linux environments? We debate that, and then discuss the growing reasons to roll your own email server.
• Still Minty Fresh | LINUX Unplugged 100 — We reflect on 100 episodes of LINUX Unplugged, the themes from episodes past & then review Linux Mint 17.2 Cinnamon edition.
• Gallaghers’ Where U Brew — We are a family (and dog!) friendly tap room and brewery, working to make your DIY brewing experience a successful, positive, uplifting and rewarding pursuit of fabulously great beer, extraordinarily fine wine or cider, and even root beer!
• Cloudron Solution for Self-Hosting Web Appplications — Cloudron is a turnkey solution for running apps like WordPress, Rocket.Chat, NextCloud, GitLab, OpenVPN & many more.
• LINUX Unplugged Beer Stein
• Name the LUP 400 Beer - Straw Poll

Lutris developer Mathieu Comandon joins us to share his perspective on the uncomfortable issues facing Linux desktop developers.

Plus the tech behind Shells.com, community news, feedback, and more.

Special Guests: Mathieu Comandon and Zlatan Todorić.

Sponsored By:

• Linode Cloud Hosting: A special offer for all Linux Unplugged Podcast listeners and new Linode customers, visit linode.com/unplugged, and receive $100 towards your new account.
• A Cloud Guru: Hundreds of courses, thousands of hands-on labs.

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• 68k.news — Headlines From the Future
• Linux Action News 182 — GNOME 40 is out and we chat with the project’s Executive Director about the technical and visual improvements in the new release. Plus the facts around RMS’s return to the FSF board, and our analysis of the situation.
• Episode 118 — Stallman is back and ruffling feathers, PHP moves to GitHub, AMP might be on its way out, Audacity’s latest update gives us pause, Fairphone delivers an unlikely update, online events, and more.
• AlmaLinux OS Stable Release is live! — We are very happy to announce that today we are releasing the first AlmaLinux OS stable version. That's right, you can go right ahead and download the stable version and use it everywhere you need a stable, reliable, Linux distribution.
• Ubuntu 21.04 Testing Week — Ubuntu and its flavors will be participating in another ‘Ubuntu Testing Week’ from April 1st to April 7th.
• Shells — Personal Workspaces Powered by Cloud Computers.
• An Interview With Zlatan Todoric, Open-Source Developer & Former Purism CTO
• Diversity, Flexibility, and Linux: Prioritizing Generous Transfer
• JB Telegram Group
• All Jupiter Broadcasting Shows
• Lutris — Open Gaming Platform
• [Mathieu's Blog] Not on the same page — The disconnect I feel between what I want to deliver in what I build and what the users asks for is now too big to ignore. In some way, I already knew it would be the case before I even started Lutris. I knew that what I was trying to achieve wasn’t in line with how Linux users usually behave…
• Feedback: Cockpit
• Feedback: Covid Appointment Script

We share our favorite networking trick of all time, and then chat with the blokes behind a new WireGuard-powered service.

Plus our reaction to RMS's return to the FSF, some big project updates, picks, and more!

Special Guests: Dalton Durst and Danielle Foré.

Sponsored By:

• Linode Cloud Hosting: A special offer for all Linux Unplugged Podcast listeners and new Linode customers, visit linode.com/unplugged, and receive $100 towards your new account.
• A Cloud Guru: Hundreds of courses, thousands of hands-on labs.

Support LINUX Unplugged

Links:

• Microsoft Said to Discuss Discord Bid for Over $10 Billion — “Microsoft possibly acquiring Discord makes a lot of sense as it continues to reshape its gaming business more toward software and services”.
• [Video] Richard Stallman is Back
• edw · elementary Developer Weekend — This conference is our way of reaching out to app developers, sharing the knowledge we’ve all collected over the years, and providing a space to ask questions and provide feedback.
• Ubuntu Touch OTA-16 Release — Today we are happy to announce the release of Ubuntu Touch OTA-16, our sixteenth stable update to the system!
• Linux Action News 181
• Forthcoming OpenSSL release — OpenSSL 1.1.1k is a security-fix release. The highest severity issue fixed in this release is HIGH.
• Initial Support For The Rust Language Lands In Linux-Next — While no fully-baked Rust kernel driver is ready yet, the initial merge to Linux-Next does include an example kernel module written in Rust.
• Linus Torvalds on where Rust will fit into Linux — Torvalds thinks "Rust's primary first target seems to be drivers, simply because that's where you find just a lot of different possible targets, and you have these individual parts of the kernel that are fairly small and independent. That may not be a very interesting target to some people, but it's the obvious one."
• Supporting Linux kernel development in Rust [LWN.net]
• Diversity, Flexibility, and Linux: Prioritizing Generous Transfer | Linode
• JB Telegram
• All Jupiter Broadcasting Shows
• Hoppy — Hoppy provides a unique public IPv4 and IPv6 address to each of your devices, allowing connectivity without limitations. If you are behind a restrictive ISP, constantly on the move, or self-hosting services, Hoppy is for you. All major platforms are supported.
• ngrok — Secure introspectable tunnels to localhost.
• Gist: Assign public ipv6 to wireguard clients
• WireGuard Routing and Port Forwarding
• Gist: Forward all traffic to server over WireGuard VPN
• Expose server behind NAT with WireGuard and a VPS
• How To Forward Ports through a Linux Gateway with Iptables
• FORWARD and NAT Rules
• Pick: dsnet — Simple command to manage a centralised wireguard VPN. Think wg-quick but quicker: key generation + address allocation.
• How to set up a wireguard VPN in minutes with dsnet
• Feedback: Raspberry Pi POCKIT
• Project POCKIT — PocKit is a computer made for the real, physical world. On top of its powerful, versatile Core, you can attach BLOCKS - any number of any kind - to suit your application.
• Video: A small, plug-and-play Linux computer — Project POCKIT
• GNOME 40’s Best New Features
• FreeBSD kernel-mode WireGuard moves forward out-of-tree

We break down the next-level features coming to a Linux near you in just a few weeks.

Sponsored By:

• Linode Cloud Hosting: A special offer for all Linux Unplugged Podcast listeners and new Linode customers, visit linode.com/unplugged, and receive $100 towards your new account.
• A Cloud Guru: Hundreds of courses, thousands of hands-on labs.

Support LINUX Unplugged

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• Virtual x86 — v86 emulates an x86-compatible CPU and hardware. Machine code is translated to WebAssembly modules at runtime in order to achieve decent performance.
• The Linux desktop is boring again — Where I was once a constant "fiddler" with my desktop, I now want the interface to work how I want it to work, but still look the way I want it to look. I'm more of a minimalist now, so GNOME suits my needs on both levels quite well. However, I find myself rather bored with the Linux desktop.
• What to look for in Fedora Workstation 34 — Christian F.K. Schaller — The big ticket item we have wanted to close off on was Wayland, because while Wayland has been production ready for most of us for a while, there was still some cases it didn’t cover as well as X.org.
• Christian Schaller on Twitter — 2020 was a year where we focused a lot on polishing what we had and getting things past the finish line and Fedora Workstation 34 is going to be the culmination of that effort in many ways.
• GNOME 40 Introducing Headless Native Backend, Virtual Monitors — As part of this headless native back-end is also the ability to create virtual monitors via command-line options for debugging and other purposes. This also allows creating virtual monitor PipeWire streams.
• What’s New in Libhandy 1.2
• Reinventing tabs — In GNOME 40, Epiphany will feature a new tab bar. This isn’t just a restyling of the old one, but a ground-up rewrite.
• My geek stuff blog: Maps and GNOME 40
• GNOME 40 & your extension – GNOME Shell & Mutter
• OBS Studio on Wayland
• Diversity, Flexibility, and Linux: Prioritizing Generous Transfer
• JB Telegram Group
• All Jupiter Broadcasting Shows
• Pick: kmon — Linux Kernel Manager and Activity Monitor 🐧💻
• Pick: ebpfsnitch — eBPFSnitch is a Linux Application Level Firewall based on eBPF and NFQUEUE. It is inspired by OpenSnitch and Douane but utilizing modern kernel abstractions - without a kernel module.
• Feedback: Docker Socket Security
• Feedback: How to exit big picture mode
• Telegram App Is Booming but Needs Advertisers, and $700 Million Soon

Tim Canham, the Mars Helicopter Operations Lead, shares Linux’s origins at JPL and how it ended up running on multiple boxes on Mars.

Plus the challenges Linux still faces before its ready for mission-critical space exploration.

Special Guest: Tim Canham.

Sponsored By:

• A Cloud Guru: Hundreds of courses, thousands of hands-on labs.
• Linode Cloud Hosting: A special offer for all Linux Unplugged Podcast listeners and new Linode customers, visit linode.com/unplugged, and receive $100 towards your new account.

Support LINUX Unplugged

Links:

• Debian running on Rust coreutils — tldr: uutils/coreutils is now available in Debian, good enough to boot a Debian with GNOME, install the top 1000 packages, build Firefox, the Linux Kernel and LLVM/Clang.
• uutils/coreutils — An attempt at writing universal (as in cross-platform) CLI utilities in Rust.
• Steam Link now available on Linux — Special thanks to Collabora for helping make this possible.
• Steamlink Repo
• Steam Link on Flathub
• Proton Has Enabled 7000 Windows Games to Run on Linux — Proton has been receiving many updates in the past few months as well, with the introduction of the Soldier Linux runtime container and Proton Experimental on top of the regular Proton releases.
• Diversity, Flexibility, and Linux: Prioritizing Generous Transfer | Linode
• JB Telegram
• All Jupiter Broadcasting Shows
• NASA’s Perseverance Drives on Mars’ Terrain for First Time — NASA’s Mars 2020 Perseverance rover performed its first drive on Mars March 4, covering 21.3 feet (6.5 meters) across the Martian landscape. The drive served as a mobility test that marks just one of many milestones as team members check out and calibrate every system, subsystem, and instrument on Perseverance.
• [Video] Cassini Burns into Saturn After Grand Finale
• Curiosity — NASA’s Mars Exploration Program
• nasa/fprime — A flight software and embedded systems framework.
• Wind River VxWorks RTOS
• Field-programmable gate array - Wikipedia
• JPL CubeSat ASTERIA — ASTERIA (Arcsecond Space Telescope Enabling Research in Astrophysics) was a technology demonstration and opportunistic science mission to conduct astrophysical measurements using a CubeSat.
• Pick: ocenaudio — Easy, fast and powerful audio editor.
• Pick: nativefier — Make any web page a desktop application.
• Linux Action News 179 — Canonical reveals long-term Ubuntu plans that you might have missed, and the "double ungood" warning from Linus this week.
• Post-show Pick: Jellyfin 10.7.0 — Note: Non-reversible database changes. Ensure you back up before upgrading.

It's our worst idea yet. We share the password to our brand-new server and see who can own the box first. Whoever wins gets a special prize.

Plus how Archive.org uses Linux, and more.

Special Guests: Brent Gervais, Carl George, and Neal Gompa.

Sponsored By:

• Linode Cloud Hosting: A special offer for all Linux Unplugged Podcast listeners and new Linode customers, visit linode.com/unplugged, and receive $100 towards your new account.

Support LINUX Unplugged

Links:

• tsukae — Show off your most used shell commands
• GNOME Shell X11Gestures Wxtension — Enable GNOME Shell multi-touch gestures on X11 with this extension.
• TouchEgg — Touchégg is an app that runs in the background and transform the gestures you make on your touchpad or touchscreen into visible actions in your desktop.
• Apple Touch Bar Linux Driver Hopes For Upstream In 2021 — Sent out on Saturday by independent developer Ronald Tschalär was the latest reverse-engineered, open-source driver code that gets the Touch Bar and ALS support working for MacBook Pro 13,* / 14,* / 15,* models.
• Internet Archive Infrastructure — Jonah Edwards breaks down how the Internet Archive works, behind the scenes.
• jupiterbroadcasting.com/telegram
• All Jupiter Broadcasting Shows
• liamg/traitor — Automatic Linux privesc via exploitation of low-hanging fruit e.g. gtfobins.
• Don't expose the Docker socket (not even to a container) — Docker primarily works as a client that communicates with a daemon process (dockerd). Typically that socket is a UNIX domain socket called /var/run/docker.sock. That daemon is highly privileged; effectively having root access. Any process that can write to the dockerd socket also effectively has root access.
• Feedback: Minecraft Bedrock Bridge
• GeyserMC — Enable clients from Minecraft Bedrock Edition to join your Minecraft Java server.
• Feedback: Audio Hardware
• Feedback: Episode 394
• Feedback: Arch Discussion

After all these years, what's made us stick with Linux?

Plus the commitment just made by the GNOME team, and some new tools that are changing our game.

Special Guest: Drew DeVore.

Sponsored By:

• Linode Cloud Hosting: A special offer for all Linux Unplugged Podcast listeners and new Linode customers, visit linode.com/unplugged, and receive $100 towards your new account.
• A Cloud Guru: The Cloud is growing, and so is the demand for skilled cloud professionals. Grow your skills — and your career. Get 20% off access to the most effective, hands-on cloud learning. Promo Code: springintocloud21
• Datadog: Datadog - the unified monitoring and analytics platform for comprehensive visibility into cloud, hybrid, and multi-cloud environments.

Support LINUX Unplugged

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• Nvidia is nerfing its new RTX 3060 for Ethereum cryptocurrency mining — Nvidia is purposefully making its new RTX 3060 graphics cards less efficient to mine Ethereum cryptocurrency. New drivers that will accompany the release of the GPUs later this month will reduce the hash rate of Ethereum mining by around 50 percent, using software detection for cryptocurrency mining.
• Linux has made it to Mars — “It’s kind of an open-source victory, because we’re flying an open-source operating system and an open-source flight software framework and flying commercial parts that you can buy off the shelf if you wanted to do this yourself someday.”
• Linux Action News 177 — We share some exclusive details about the Linux-powered gear that just landed on Mars, and the open-source frameworks that make it possible.
• [Video] NASA’s Perseverance Rover Sends New Video and Images of the Red Planet
• Introducing Flatpak Builds - Open Build Service — OBS now supports building flatpak bundles, so you can build your own!
• Minecraft Bedrock Launcher on Flathub — The project runs the native libraries from the Android version directly on your computer.
• GNOME Shell + Mutter 40 Beta Released With Wayland Improvements, Overview Redesign — GNOME 40 beta is coming together with the GNOME Shell and Mutter components having seen new releases on Monday.
• GNOME Shell 40 and multi-monitor — Multi-monitor has come up a fair bit in conversations about the GNOME Shell UX updates that are coming in GNOME 40. There’s been some uncertainty and anxiety in this area, so we wanted to provide more detail on what the multi-monitor experience will exactly be like, so people know what to expect.
• PipeWire 0.3.22 Released With Many Improvements — PipeWire 0.3.22 was released this week with a whole lot of work in trying to see that Fedora 34 this spring can ship with it in use by default.
• PipeWire 0.3.22 Release
• Jupiter Broadcasting Telegram Channel
• All Jupiter Broadcasting Shows
• Feedback: Giving up on daily driver? — Do you sometimes wonder if it's time to give up on a Linux desktop as your daily driver?
• KXStudio — KXStudio is a collection of applications and plugins for audio production.
• Ubuntu Studio — A free and open operating system for creative people.
• ycollet/linuxmao audio packages Copr
• Drew's fedora Proaudio Copr
• yabridge — A modern and transparent way to use Windows VST2 and VST3 plugins on Linux.
• ocenaudio — Easy, fast and powerful audio editor.
• Audacity — Free, open source, cross-platform audio software for multi-track recording and editing.
• Avid Pro Tools
• SonoBus — SonoBus is an easy to use application for streaming high-quality, low-latency peer-to-peer audio between devices over the internet or a local network.
• PipeWire — It provides a low-latency, graph based processing engine on top of audio and video devices that can be used to support the use cases currently handled by both pulseaudio and JACK.
• ardour — the digital audio workstation
• Airwindows Plugins
• Calf Studio Gear - GNU/Linux Audio Plug-Ins
• Linux Studio Plugins Project
• ReaPlugs for REAPER
• SWS / S&M Extension for REAPER
• Ultrasound — High-end podcasting for everyone.
• Pick: Proton-Caller — Run any Windows program through Valve's Proton.

Something special has been achieved this week, a new benchmark in the desktop experience. We dig in.

And why everyone will be looking for an open-source LastPass alternative.

Special Guests: Brent Gervais, Neal Gompa, and Philip Muller.

Sponsored By:

• Linode Cloud Hosting: A special offer for all Linux Unplugged Podcast listeners and new Linode customers, visit linode.com/unplugged, and receive $100 towards your new account.
• Datadog: Datadog - the unified monitoring and analytics platform for comprehensive visibility into cloud, hybrid, and multi-cloud environments.
• A Cloud Guru: By the end of this course, you will feel comfortable working with a large variety of networking tools and configurations to manage complex Linux networking implementations.

Support LINUX Unplugged

Links:

• AmpliPi - Home Audio System — Kickstarter — One thing that sets apart the AmpliPi design is that we have made it open source, from the software, to the firmware, to the schematics. The REST API and Web App are written in Python and run on a Raspberry Pi 3+ Compute Module.
• The Coder — The Coder is made from 100% cotton terry velour for soft, cozy wear. Embroidered on the left chest with a classic white on black Coder Radio logo.
• Windows Refund Day — For those who hadn't heard the story, February 15th 1999 was windows refund day. It was a worldwide day when open source OS users went to microsoft's offices to return their unused licenses of windows that they were forced to acquire since they were bundled with the machine they bought.
• VLC 4.0 is coming later this year with a new UI, focus on online video and security — The new version will also focus more on playing videos from the Internet, relying on extensions to find third-party content. The team is also working on a version of VLC that will work inside the browser (based on WebAssembly).
• The Movie Database (TMDb)
• Facebook’s Linux Desktop Choice Is Fedora But Ramping Up CentOS Stream — Among the reasons Facebook is now pursuing CentOS Stream on the desktop is to serve as a stable rolling-release, binary compatibility, punctual security updates, and its close relationship with Fedora.
• Changes to LastPass Free - The LastPass Blog — Starting March 16th, 2021, LastPass Free will only include access on unlimited devices of one type, Desktop or Mobile.
• KeePass Password Safe
• Bitwarden Open Source Password Manager | Bitwarden
• 1Password Linux
• Manjaro Linux on Twitter — We updated #PlasmaMobile to the latest #Plasma 5.21 stable release. This comes with the latest 5.10 LTS kernel and updated development packages. Checkout the latest software by @kdecommunity powered by @ManjaroLinuxARM for your #Pinephone!
• Manjaro on Shells.com
• JupiterBroadcasting Telegram Group
• The Opinion Dominion Episode 28 — A wild Chris Fisher appears… for an interview.
• All Jupiter Broadcasting Shows
• Plasma 5.2 — Apart from the numerous improvements in stability, there are quite a few Plasma components that are getting much better support in Wayland. KRunner, for example, is now able to list all open windows in Wayland, a new component in the panel’s system tray informs you of the keyboard layout, and we now support features required for GTK 4, so all GTK 4 applications will now work.
• M.2 Enclosure for SATA NGFF SSD
• Feedback: Arch Upgrade Tips
• Feedback: Arch on the laptop of Chris’ son
• SonoBus — SonoBus is an easy to use, open-source, application for streaming high-quality, low-latency peer-to-peer audio between devices over the internet or a local network.