Scott Lowe

SEPTEMBER 9, 2014

This is a live blog of session DATS004, titled “Bare-Metal, Docker Containers, and Virtualization: The Growing Choices for Cloud Applications.” Weaver includes a discussion of the drivers behind virtualization as well as the pros and cons of virtualization. That, naturally, leads to a discussion of containers.

Virtualization 109

Virtualization Linux Intel Construction 109

TechSpot

OCTOBER 14, 2024

According to some code changes spotted by Android Authority's Mishaal Rahman in the Android Open Source Project, the folks at Google have been quietly baking Linux support into Android's infrastructure. A few weeks back, engineers started developing a new "Terminal" app that leverages Android's Virtualization Framework to run a Linux.

Linux 89

Linux Open Source Virtualization Engineering 89

TechSpot

AUGUST 23, 2023

Cameyo recently introduced ChromeOS Virtual App Delivery (VAD), a novel virtualization service that empowers ChromeOS users to operate "all" of their applications directly within a Chrome browser window. Read Entire Article

Virtualization 98

Virtualization Windows Linux Operating Systems 98

Network World

APRIL 8, 2019

The resultant virtual image can then be booted and run without anything else being present. To read this article in full, please click here Any drivers, I/O routines and support libraries that are required are included in the single executable. And they will often run 10 to 20 times faster than a container.

Applications 145

Applications Linux How To Internet 145

Scott Lowe

MARCH 21, 2014

Some time ago, I introduced you to the idea of Linux network namespaces, and provided an overview of some of the commands needed to interact with network namespaces. I say “incorrectly” because you are able to assign more than just virtual Ethernet interfaces to a Linux network namespace. Linux Networking CLI'

Linux 92

Linux Network Virtualization Examples 92

Scott Lowe

NOVEMBER 27, 2013

One of the cool things about libvirt is the ability to work with multiple hypervisors and virtualization technologies, including Linux containers using LXC. If you aren’t familiar with Linux containers and LXC, I invite you to have a look at my introductory post on Linux containers and LXC.

Linux 79

Linux Virtualization Network Examples 79

Scott Lowe

OCTOBER 31, 2012

Open vSwitch (OVS) is a core component in a number of prominent virtualization- and cloud-related products and projects (consider that OpenStack Quantum, CloudStack, XenServer, and Nicira NVP all leverage OVS). Enable IP routing in the Linux kernel. Wrapping libvirt Virtual Networks Around Open vSwitch Fake Bridges.

Linux 141

Linux Virtualization Network Examples 141

Scott Lowe

OCTOBER 18, 2012

Over the last few days, I’ve been unsuccessfully trying to get Open vSwitch (OVS) running on Red Hat Enterprise Linux (RHEL) 6.3 (as The rationale behind this is that RHEL/CentOS are the sort of battle-tested, well-supported Linux distributions that enterprises will (and do) deploy in their data centers. as well as CentOS 6.3).

Enterprise 122

Enterprise Enterprise Linux Virtualization 122

Scott Lowe

APRIL 5, 2013

If you want to read a masterpiece of an article describing how OpenStack Quantum works with Open vSwitch (OVS) and the OVS plugin, this write-up by Florian Otel should be your first stop. how each of these components leverages different Linux network namespaces to accomplish their tasks. Networking Virtualization OpenStack Quantum'

Resources 137

Resources Virtualization Linux Network 137

Linux Academy

MAY 15, 2020

This article will give you the full lowdown on Windows Containers, to prepare you to do just that. First, I want to acknowledge that there is a big difference between Linux and Windows containers. Linux containers have been around for many decades, in one form or another. It does NOT run Linux Containers. Why Windows?

Windows 129

Windows Linux Architecture Virtualization 129

Scott Lowe

DECEMBER 2, 2013

I’ve been doing some experimenting with virtual Ethernet (veth) interfaces in Ubuntu as part of the ongoing work with network namespaces, LXC, and related technologies. Because of this, nothing works—I can’t use the veth pair to connect network namespaces, or to connect a Linux bridge to OVS, or anything else.

Virtualization 68

Virtualization Linux Network Storage 68

Scott Lowe

MARCH 15, 2024

Ivan Pepelnjak dives deep on DHCP relaying on a Linux host. Rob McBryde shares his story of reviving a 2012 MacBook Pro with Linux. Security In early February a vulnerability was uncovered in a key component of the Linux boot process. Think Linux doesn’t have malware? TL;DR: It’s not as easy as it might seem.)

Linux 113

Linux Vmware Load Balancer Malware 113

Scott Lowe

DECEMBER 23, 2018

In early 2017 I kicked off an effort to start using Linux as my primary desktop OS, and I blogged about the journey. I restarted the migration in April 2018 (when I left VMware to join Heptio), and since that time I’ve been using Linux ( Fedora , specifically) full-time. Final Linux Distro Selection.

Linux 60

Linux Vmware Virtualization Report 60

Data Center Knowledge

JULY 12, 2013

Privately held CSL is a leading provider of virtualization management technology for IBM’s zEnterprise system. CSL’s CSL-WAVE software enables companies to monitor and manage thei z/VM and Linux on System z environments using a powerful and easy-to-use interface. Featured Cloud Articles. Featured Modular Articles.

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Data Center IBM System HP 190

Scott Lowe

NOVEMBER 7, 2012

In previous posts, I’ve shown you how to use Open vSwitch (OVS) with VLANs through fake bridges , as well as how to wrap libvirt virtual network around OVS fake bridges. Although the Silicon Loons article I referenced earlier mentions an earlier version of libvirt, I was not able to make it work until the 1.0.0 of libvirt.

Virtualization 153

Virtualization .Net Network Linux 153

Network World

JULY 17, 2024

The Linux-based NOS was created by Microsoft for its Azure data centers and then open-sourced by Microsoft in 2017. In April 2022, Microsoft turned the project over to the Linux Foundation and its 450,000 developers. What is SONiC? Who created SONiC? We should see SONiC continue to extend into new use cases.”

Open Source 173

Open Source Enterprise Enterprise Linux 173

Scott Lowe

NOVEMBER 24, 2012

The key to making it work is the idea of a virtual resource. With a virtual resource, though, you can define the resource once (as a virtual resource; denoted with an “@” in front of the resource). The Puppet Labs site does a much better job of explaining virtual resources. or similar.

Virtualization 145

Virtualization Resources Linux Open Source 145

Scott Lowe

MAY 17, 2024

The year seems to be flying by—much in the same way that all these technical articles keep flying by my Inbox, occasionally getting caught and included here! In this Technology Short Take, I have links on things ranging from physical network designs to running retro operating systems as virtual machines.

Linux 110

Linux Operating Systems Windows Virtualization 110

Data Center Knowledge

JULY 23, 2013

Fusion-io is contributing its NVMKV (nonvolatile memory key-value) interface to flash and is also posting the first flash-aware Linux kernel virtual memory Demand Paging Extension to GitHub for community testing. Featured Cloud Articles. Featured Modular Articles. ARCHIVED ARTICLES. Virtualization.

Open Source 177

Open Source Data Center Storage Disaster Recovery 177

Scott Lowe

DECEMBER 6, 2012

Mirantis published an article discussing a framework they built for bare-metal provisioning with OpenStack that allows OpenStack to place workloads onto bare-metal nodes instead of onto a hypervisor. I don’t have anything for this area this time around, but I’ll stay alert for articles to add next time. Virtualization.

Vmware 115

Vmware Virtualization Storage Hardware 115

Scott Lowe

JUNE 4, 2013

Welcome to Technology Short Take #33, the latest in my irregularly-published series of articles discussing various data center technology-related links, articles, rants, thoughts, and questions. Tom Nolle asks the question , “Is virtualization reality even more elusive than virtual reality?” Virtualization.

HP 113

HP Virtualization Hardware Network 113

Scott Lowe

JANUARY 29, 2013

A short while ago I posted an article that described how to use Puppet for account management. In that article, I showed you how to use virtual user resources to manage user accounts on Puppet-managed systems. Create a dependency between the virtual user resources and this new subclass. Linux Automation OSS Puppet'

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Resources Operating Systems Linux Virtualization 121

Network World

JANUARY 4, 2018

And all the major software vendors of Linux, Microsoft for Windows, Apple for macOS, and virtualization software suppliers such as VMware and Citrix have all collaborated to mitigate this threat. To read this article in full, please click here

Intel 113

Intel Vmware Linux Architecture 113

Computerworld Vertical IT

JULY 15, 2021

Microsoft has put Windows online with Windows 365, which means any Mac, iPad, iPhone, or even Linux user can run a a virtualized PC in the cloud. You access the cloud PC using a web browser or native app, and the service requires fewer technical skills than it takes to run Azure Virtual Desktop. What is Windows 365?

Windows 92

Windows Cloud Linux Virtualization 92

Scott Lowe

DECEMBER 3, 2013

In this post I’m going to expand a little bit on using libvirt to connect Linux containers (created using LXC ) to Open vSwitch (OVS). If you aren’t familiar with these projects, I suggest you have a look back at other articles I’ve written about them in the past. This post aims to provide those details.

Linux 79

Linux Virtualization Network Storage 79

Scott Lowe

MAY 15, 2013

In this post, I want to provide some additional insight on how the use of Open vSwitch (OVS) affects—or doesn’t affect, in some cases—how a Linux host directs traffic through physical interfaces, OVS internal interfaces, and OVS bridges. The host is running Linux with KVM, libvirt, and OVS installed.

Linux 127

Linux Travel Network Storage 127

Data Center Knowledge

JULY 15, 2013

If they ran Linux, maybe they wouldn’t have to run so many servers. Featured Cloud Articles. Featured Modular Articles. ARCHIVED ARTICLES. Virtualization. Get daily email alerts direct to your inbox. Connect via Twitter, Facebook, LinkedIn & RSS. Posted July 15th, 2013. Posted July 16th, 2013. Twitter.

Data Center 276

Data Center Microsoft Data Disaster Recovery 276

Scott Lowe

MAY 30, 2013

In an earlier post, I provided an introduction to policy routing as implemented in recent versions of Ubuntu Linux (and possibly other distributions as well), and I promised that in a future post I would provide a practical application of its usage. This article was originally posted on blog.scottlowe.org.

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Policies Linux Virtualization Network 102

Scott Lowe

OCTOBER 18, 2012

In the virtualization space, it’s extremely common to want to use multiple physical network connections in your hypervisor hosts to support guest (virtual machine) traffic. The use of a different Linux distribution and/or a different version of OVS might make this process slightly different. LTS and Open vSwitch 1.4.0

Virtualization 143

Virtualization Vmware Network Exercises 143

Scott Lowe

JULY 15, 2013

This article was originally posted on blog.scottlowe.org. Visit the site for more information on virtualization, servers, storage, and other enterprise technologies. General Linux Automation Puppet' I’ll select two winners at random at noon MDT this Friday, July 19 from among all submitted comments. Getting Hiera Working.

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Conference Linux Devops Travel 122

Scott Lowe

MAY 2, 2013

This article was originally posted on blog.scottlowe.org. Visit the site for more information on virtualization, servers, storage, and other enterprise technologies. Interoperability Linux ActiveDirectory Kerberos LDAP SSH' conf restorecon /etc/krb5.keytab keytab restorecon /root/.k5login. Thanks Tomas!

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Authentication Linux Storage Security 135

Scott Lowe

NOVEMBER 7, 2014

That’s right, it’s time for yet another collection of links and articles from around the Internet on various data center-related technologies, products, projects, and efforts. It was good to read this post on Cumulus Linux first impressions by Jeremy Stretch. ” I highly encourage reading this article.

Vmware 87

Vmware Linux Storage Virtualization 87

Network World

FEBRUARY 29, 2016

Skyport offers SkySecure Server, a remotely deployable platform for Windows and/or Linux virtual machines in a fortress-like environment. To read this article in full or to leave a comment, please click here (Insider Story) Skyport does one thing, and it does it well. You can rent one for $2,500 per month, or less.

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Security Linux Operating Systems Windows 108

Scott Lowe

APRIL 11, 2017

In December 2016, I kicked off a migration to Linux (from OS X) as my primary laptop OS. Let me start by saying that I am actively using a Linux-powered laptop as my primary laptop right now, and I have been doing so since early February. Linux Distribution. I’m using Enpass on my OS X, Linux, and iOS devices.

Linux 60

Linux Report Vmware Travel 60

Scott Lowe

NOVEMBER 6, 2012

If you’ve been reading my site for any length of time, you know that I’ve been working with libvirt , the open source virtualization API, for a while. Be sure to check out Theron’s comment on this article for more information on a potential Ubuntu PPA that might help with this issue. Compiling libvirt 0.10.1

Virtualization 100

Virtualization Linux Open Source System 100

Scott Lowe

FEBRUARY 4, 2013

I still have a lot to learn about OpenFlow and networking, but this article from June of last year (it appears to have been written by Ivan Pepelnjak) discusses some of the potential scalability concerns around early versions of the OpenFlow protocol. Virtualization. I’m a CLI fan, so I like this sort of stuff. Great job, Brad.

Vmware 134

Vmware Storage Virtualization Network 134

Network World

MARCH 27, 2018

Internal tests from a leading industry vendor have shown that fixes applied to servers running Linux or Windows Server aren’t as detrimental as initially thought, with many use cases seeing no impact at all. To read this article in full, please click here Haswell and Broadwell were the same microarchitecture, with minor tweaks.

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Linux Architecture Windows Virtualization 100