libvirt – Jupiter Broadcasting

It Crashes Better | Coder Radio 362

Wes Payne — Mon, 17 Jun 2019 19:28:21 +0000

Show Notes: coder.show/362

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Wendell Wilson | Ask Noah 35

chris — Mon, 20 Nov 2017 20:23:14 +0000

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Kickin’ Harder Than a Sensei | Ask Noah 20

chris — Mon, 07 Aug 2017 21:16:18 +0000

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/home/Dumpster | Ask Noah 19

chris — Mon, 31 Jul 2017 20:12:44 +0000

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How to Restart LightDM

Press CTRL + ALT + F2
Log in
sudo restart lightdm
Press CTRL + ALT + F5

How to kill a process

Press CTRL + ALT + F2
Log in
ps -aux | grep myprogramiwantokill
Take note of the process ID, we will assume 1234
sudo kill -9 1234

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The post /home/Dumpster | Ask Noah 19 first appeared on Jupiter Broadcasting.

Switching London to Linux | Ask Noah 18

chris — Mon, 24 Jul 2017 18:07:06 +0000

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Fedora 26 Fleet Commander | Ask Noah 17

chris — Mon, 17 Jul 2017 19:30:02 +0000

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Libvirt on QEMU | Ask Noah 16

chris — Mon, 10 Jul 2017 19:42:57 +0000

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Virtualization Revelation | LAS 418

chris — Sun, 22 May 2016 17:39:19 +0000

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We share our early experiences with virtualization, then show you how Linux’s built-in enterprise grade virtualization curb stomps some commercial options. The discussion wraps up with examples of awesome hardware passthrough, and the major shift Linux has made possible.

PLUS: Chromebooks outsell Macs, the sad story of an important project fading away, the big choice facing Fedora & more!

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Brought to you by: Linux Academy

Virtualization

Eddie Asks

libvirt

Libvirt is collection of software that provides a convenient way to manage virtual machines and other virtualization functionality, such as storage and network interface management. These software pieces include a long term stable C API, a daemon (libvirtd), and a command line utility (virsh). A primary goal of libvirt is to provide a single way to manage multiple different virtualization providers/hypervisors, such as the KVM/QEMU, Xen, LXC, OpenVZ or VirtualBox hypervisors

Virtual Machine Manager Home

The virt-manager application is a desktop user interface for managing virtual machines through libvirt. It primarily targets KVM VMs, but also manages Xen and LXC (linux containers). It presents a summary view of running domains, their live performance & resource utilization statistics. Wizards enable the creation of new domains, and configuration & adjustment of a domain’s resource allocation & virtual hardware. An embedded VNC and SPICE client viewer presents a full graphical console to the guest domain.

Boxes – GNOME Wiki!

UEFI in Virutal Machines, Meet OVMF

OVMF is an EDK II based project to enable UEFI support for Virtual Machines. OVMF contains a sample UEFI firmware for QEMU and KVM.

Using CPU host-passthrough with virt-manager

Since host-passthrough is the only reliably way to expose the full capabilities of the host CPU to the VM, users regularly want to enable it.

Qemu OVMF PCI Passthrough stopped booting after most recent update / Applications & Desktop Environments

unraid – Virtualization Host

7 Gamers, 1 CPU – Ultimate Virtualized Gaming Build Log – YouTube

In our case, we created 7 discrete gaming systems capable of running concurrently and completely independently of each other – all running in a single tower.

8 (or is it 10?) Gamers, 1 CPU – Taking it to the Next Level! – YouTube

Another $30,000 worth of computer hardware.. But can it power TEN gaming rigs this time??

Proxmox – Powerful Open Source Server Solutions

Storage: ZFS – Proxmox

How To

Server

yum install kvm qemu-kvm python-virtinst libvirt libvirt-python virt-manager libguestfs-tools
chkconfig libvirtd on
service libvirtd start
yum install bridge-utils
Open Virt-Manager > click + > Bridge > br0 > Start Mode: onboot > Activate Now > Check eth0

Client

Install virt-manager

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Runs Linux

The NVIDIA DGX-1 Deep Learning System, Runs Linux

GTC 2016 NVIDIA DGX 1, World’s First Deep Learning Supercomputer part 7 – YouTube

Desktop App Pick

Netdata – Real-Time Performance Monitoring

netdata is a highly optimized Linux daemon providing real-time performance monitoring for Linux systems, Applications, SNMP devices, over the web !

nethogs: Linux ‘net top’ tool

NetHogs is a small ‘net top’ tool. Instead of breaking the traffic down per protocol or per subnet, like most tools do, it groups bandwidth by process.

Spotlight

systemd GUI: systemd-manager

This application exists to allow the user to manage their systemd services via a GTK3 GUI. Not only are you able to make changes to the enablement and running status of each of the units, but you will also be able to view and modify their unit files, check the journal logs. In addition, systemd analyze support is available to display the time it takes for systemd to boot the system.

Patrons watch the full live version of LAS

LAS 418 FULL LIVE STREAM

— NEWS —

Chromebooks outsold Macs for the first time in the US

Google’s low-cost Chromebooks outsold Apple’s range of Macs for the first time in the US recently. While IDC doesn’t typically break out Windows vs. Chromebook sales, IDC analyst Linn Huang confirmed the milestone to The Verge. “Chrome OS overtook Mac OS in the US in terms of shipments for the first time in 1Q16,” says Huang. “Chromebooks are still largely a US K-12 story.”

lykwydchykyn comments echo Chris’ thoughts perfectly

Fedora just missed rebasing on the goodness that is Linux 4.6

Fedora 24 ships June 14, 2016

And because of that, it looks like Linux kernel 4.6 will not be the default for the Fedora 24 operating system, which will ship in less than a month, on June 14, 2016, with the latest maintenance release of the Linux 4.5 kernel series. However, the chances are that Linux kernel 4.6 will be shortly released to the stable channels for users to upgrade their current kernel after Fedora 24’s official release.

Linux kernel 4.6 was announced by Linus Torvalds on May 15, 2016. It promises to offer users a new distributed file system, OrangeFS, support for the USB 3.1 SuperSpeed Plus (SSP) protocol, Out Of Memory task killer reliability improvements, support for Intel Memory protection keys, the Kernel Connection Multiplexor, as well as 802.1AE MAC-level encryption (MACsec) support.

Moreover, Linux kernel 4.6 ships with support for the BATMAN V protocol, an online inode checker for the OCFS2 file system, dma-buf, support for cgroup namespaces, and support for the pNFS SCSI layout. The first GNU/Linux distributions to adopt the Linux 4.6 kernel branch are Gentoo, Arch Linux, and SparkyLinux, and openSUSE Tumbleweed should join them in the coming weeks.

lm-sensors project dead?

It’s been a year since the last LM-Sensors release and the project isn’t as vibrant or active as it once was while the project site has been down for a while now and it doesn’t appear to be coming back.

Mattermost continues to bring the heat to Slack

Mattermost 3.0 offers a long awaited features: multi-team accounts, Japanese language translation, and full width display, plus upgrades to apps for iOS, Android, Windows, Linux and Mac, emojis, and we have new integrations for Outlook, Ruby & Rust.

Introducing Mycroft Core – Mycroft

We are pleased to announce that Mycroft Core 0.6 Alpha is available for download today. Mycroft Core is a lightweight, portable piece of software written in Python. You can run it on anything from a Raspberry Pi to a gaming rig.

Mail Bag

https://slexy.org/view/s26VoSpJhR
Why screen lockers on X11 cannot be secure – Martin’s Blog
Circumventing Ubuntu Snap confinement
xorg – Why is X11 a security risk in servers? – Ask Ubuntu
X11 is horribly insecure, each subuser should get its own X11 server in a container. · Issue #31 · subuser-security/subuser · GitHub
The Wayland Situation: Facts About X vs. Wayland – Phoronix
https://slexy.org/view/s2kxsRnQk5

Call Box

Chris’ call out for the community to help him with his background

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The post Virtualization Revelation | LAS 418 first appeared on Jupiter Broadcasting.

The PC-BSD Tour | BSD Now 49

chris — Thu, 07 Aug 2014 11:38:35 +0000

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Coming up this week on the show, we’ve got something special for you! We’ll be giving you an in-depth look at all of the graphical PC-BSD utilities. That’s right, BSD doesn’t have to be command line only anymore! There’s also the usual round of answers to your emails and all the latest headlines, on BSD Now – the place to B.. SD.

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Headlines

FreeBSD foundation semi-annual newsletter

The FreeBSD foundation published their semi-annual newsletter, complete with a letter from the president of the foundation
“In fact after reading [the president’s] letter, I was motivated to come up with my own elevator pitch instead of the usual FreeBSD is like Linux, only better!”
It talks about the FreeBSD journal as being one of the most exciting things they’ve launched this year, conferences they funded and various bits of sponsored code that went into -CURRENT
The full list of funded projects is included, also with details in the financial reports
There are also a number of conference wrap-ups: NYCBSDCon, BSDCan, AsiaBSDCon and details about the upcoming EuroBSDCon
A new application page for travel grants to EuroBSDCon is also up

OpenBSD on an Intel NUC

A lot of people love small form factor PCs, and we love ones that can run BSD – so does the author of this write-up
The Intel NUC is a small, almost Mac Mini-like device that’s pretty cheap and offers some nice specs
“The NUC has integrated Intel graphics (Intel HD Graphics 5000) which as an OpenBSD user is exactly what I wanted” – fully supported
The post goes into detail about PXE booting the installation and talks about his experiences

BAFUG presentation videos

A couple of talks from BAFUG, the Bay Area FreeBSD Users Group, were uploaded to YouTube
The first talk is by Craig Rodrigues about libvirt and bhyve integration
libvirt is a c library for interacting with various Hypervisors and virtualization technology – bhyve support was recently added
The second is by Adrian Chadd, titled “Upcoming RSS enhancements to the FreeBSD Network Stack”
Adrian also wrote a blog post that accompanies the video
We need more good quality BSD presentation videos!

TLS decompression

A new blog post from our buddy Ted Unangst](https://www.bsdnow.tv/episodes/2014_02_05-time_signatures), this time about a feature he recently removed from LibreSSL
The original commit message was just “decompress libressl” with no details – these are the missing details of that change
It talks about the different network layers where compression is applied and how code has to be refactored for that
“I might download a zip file (of png files!). The web server, if configured just wrong, can apply http compression to it. If it’s https, the TLS layer can compress it again. If I’m using an SSH tunnel, that can compress it. If it’s travelling over IPsec, it can get compressed again. It can get compressed again by IP compression. How many layers of compression do we really need?”

Special segment

The PC-BSD Tour

News Roundup

Introducing pkgfs

A new tool, pkgfs, was committed to FreeBSD -CURRENT
It’s described as “a file system implementation for reading files out of a compressed tarball”
Users will now be able to view pkgng packages (or any compressed tarball) just like NFS, SMB, SSHFS, etc

BSDMag’s July 2014 issue is out

Continuing their monthly release cycle, BSD Magazine has another issue for us
Topics include using Wireshark in a SAN environment, more GIMP image manipulation tutorials, an interview with Brett Davis about TrueNAS, an article about pkgng in DragonFlyBSD and a few other things
The PDF is free to download, as always

A new OpenSMTPD interview

Way back in episode three, we talked to Gilles and Eric from the OpenBSD team about OpenSMTPD
One of the developers gave a text-only interview with a Russian website about some recent activity
It talks about their development process, testing the code on various platforms and architectures, stress testing via the “Twitter flash mob” and a few other things

FreeBSD as a syslog server

If you have a large number of servers, examining their logs individually is a pain
Fortunately, you can configure them to send their logs to a dedicated system to receive them
This blog post goes through the process of setting up the “client” systems as well as the “server” system to get all your logs in one place

Feedback/Questions

All the tutorials are posted in their entirety at bsdnow.tv
Send questions, comments, show ideas/topics, or stories you want mentioned on the show to feedback@bsdnow.tv
If you want to come on for an interview or have a tutorial you’d like to see, let us know
Watch live Wednesdays at 2:00PM Eastern (18:00 UTC)
An important notice: OpenBSD is moving to a new distributor in September, so between now and then is your last chance to buy any of the current shirts, CDs, mugs, posters – grab them now while you still can!

The post The PC-BSD Tour | BSD Now 49 first appeared on Jupiter Broadcasting.