Scott Lowe

OCTOBER 22, 2012

In this article, I show you how to wrap a libvirt virtual network around your OVS fake bridge. You might ask, “Why wrap a libvirt virtual network around an OVS fake bridge when you can just use the OVS bridge directly?” Next, create an XML definition for a libvirt virtual network. Using VLANs with OVS and libvirt.

Virtualization 129

Virtualization Network .Net Linux 129

Scott Lowe

NOVEMBER 25, 2013

In this post, I’m going to provide a brief introduction to working with Linux containers via LXC. Both full machine virtualization and containers have their advantages and disadvantages. Both full machine virtualization and containers have their advantages and disadvantages. Introducing Linux Network Namespaces.

Linux 96

Linux Virtualization Operating Systems Architecture 96

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 61

Virtualization Linux Network Storage 61

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 65

Linux Virtualization Network Examples 65

Scott Lowe

SEPTEMBER 11, 2012

This is session COMS002, titled “Next Generation Cloud Infrastructure with Data Plane Virtualization.” Verplanke believes that DPDK (Data Plane Development Kit) and virtualization are key to virtualizing workloads that move around lots and lots of packets, such as firewalls, routers, and other similar functions.

Virtualization 113

Virtualization Intel Cloud Data 113

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 73

Linux Network Virtualization Examples 73

Storage IO Blog

NOVEMBER 30, 2014

AWS made several announcements at re:invent including many around development tools, compute and data storage services. Aurora is positioned as an alternative to traditional SQL based transactional databases commonly found in enterprise environments (e.g. SQL Server among others).

Cloud 83

Cloud Storage Backup Linux 83

CIO Business Intelligence

MAY 9, 2023

Enterprises are at a crossroads for how to invest in their future infrastructure support and have a handful of options: Operate as-is. One of those technologies, Zowe, connects the gap between modern applications and the mainframe. This option may not include net-new investments but positions a business for failure against competitors.

Applications 96

Applications Development Open Source How To 96

CIO Business Intelligence

DECEMBER 22, 2023

After marked increase in cloud adoption through the pandemic, enterprises are facing new challenges, namely around the security, maintenance, and management of cloud infrastructure. According to the Foundry report, 78% of organizations say that, in response to cloud investments made by the organization, they have added new roles.

Cloud 126

Cloud Company Devops Disaster Recovery 126

Scott Lowe

APRIL 6, 2017

Here’s a handy list of deprecated Linux network commands and their replacements. Konstantin Ryabitsev has a series going on securing a SysAdmin Linux workstation. Part 1 covers how to choose a Linux distribution, and part 2 discusses some security tips for installing Linux on your SysAdmin workstation. Virtualization.

Vmware 60

Vmware Linux Storage Network 60

Scott Lowe

APRIL 5, 2013

how each of these components leverages different Linux network namespaces to accomplish their tasks. Visit the site for more information on virtualization, servers, storage, and other enterprise technologies. OpenStack Summit 2013: OpenStack Back to the Enterprise, Keep Calm and Boldly Go On.

Resources 121

Resources Virtualization Linux Network 121

Scott Lowe

NOVEMBER 7, 2014

It was good to read this post on Cumulus Linux first impressions by Jeremy Stretch. I’m a fan of Cumulus, but I’m admittedly a Linux guy (see here ) so you might say I’m a bit biased. Jeremy is a “hard-core” networking professional, and so hearing his feedback on Cumulus Linux was, in my opinion, useful.

Vmware 69

Vmware Linux Storage Virtualization 69

Scott Lowe

APRIL 17, 2013

This is a session titled “OpenStack Back to the Enterprise: Keep Calm and Boldly Go.” The purpose of this talk is to share some of the “lessons learned” in how to position OpenStack to enterprise customers and overcome their objections. So how does one pitch OpenStack to an enterprise organization?

Enterprise 99

Enterprise Enterprise HP Linux 99

Scott Lowe

DECEMBER 6, 2013

A fan of network virtualization might also say that decomposing today’s complex physical networks into multiple simple logical networks on top of a simpler physical transport network—similar to Mike’s suggestion of converging on a smaller set of reference architectures—might also help. (Of Virtualization.

Vmware 60

Vmware Storage Linux Network 60

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 123

Linux Virtualization Network Examples 123

Scott Lowe

OCTOBER 5, 2012

Erik Smith, notably known for his outstanding posts on storage and FCoE, takes a stab at describing some of the differences between SDN and network virtualization in this post. Is Cisco’s Insieme effort producing a storage product? storage enhancements. Virtualization. It starts here.

Storage 92

Storage Vmware Linux Virtualization 92

Scott Lowe

FEBRUARY 6, 2014

In the process, he muses about the value of configuration management tool chains such as Chef and Puppet in a world of “open switch” platforms such as Cumulus Linux. Speaking of Cumulus Linux…did you see the announcement that Dell has signed a reseller agreement with Cumulus Networks? Operating Systems/Applications.

Linux 60

Linux Vmware Storage Virtualization 60

Scott Lowe

JULY 15, 2013

Visit the site for more information on virtualization, servers, storage, and other enterprise technologies. General Linux Automation Puppet' PuppetConf 2013 Ticket Giveaway. Similar Posts: OpenStack Cloud Computing Cookbook Giveaway. Using Puppet for Account Management. vSphere Design Guide Giveaway.

Conference 111

Conference Linux Devops Travel 111

Scott Lowe

JULY 22, 2013

The networking “old guard” likes to talk about how x86 servers and virtualization create network bottlenecks due to performance concerns, but as Ivan points out in this post , it’s rapidly becoming—or has already become—a non-issue. (By Virtualization. Seriously.). Cloud Computing/Cloud Management. (I

Vmware 106

Vmware Virtualization Network Linux 106

Scott Lowe

OCTOBER 30, 2013

Mirantis joins a number of other vendors also offering OpenStack distributions, though Mirantis claims to be different on the basis that its OpenStack distribution is not tied to a particular Linux distribution. Inktank Ceph Enterprise. Inktank Ceph Enterprise will include: Open source Ceph (version 0.67).

Open Source 60

Open Source Linux Vmware Enterprise 60

Linux Academy

SEPTEMBER 5, 2019

Puppet Enterprise 2018.1 We will be learning from the ground up, starting with the installation process for Puppet Enterprise (PE). Implement and manage storage. Deploy and manage virtual machines (VMs). Configure and manage virtual networks. DevOps: 16. Google Cloud: 1. Completed Early Access Courses. New Courses.

Linux 14

Linux Course Microsoft Devops 14

Scott Lowe

MAY 29, 2020

Virtualization. For those new to Linux virtualization—or even if you’ve been around Linux virtualization for a while—this article explaining how Intel VT-x, QEMU, and KVM work together is full of good information. Tomas provides resources for running Fedora Silverblue on Libvirt/KVM.

Linux 60

Linux Virtualization Security Backup 60

Scott Lowe

JANUARY 23, 2014

I’ve previously discussed using Open vSwitch (OVS) with Linux Containers (LXC) in a couple of previous posts ( here and here ). with the Linux 3.8.0 Visit the site for more information on virtualization, servers, storage, and other enterprise technologies. A Brief Introduction to Linux Containers with LXC.

Linux 74

Linux Virtualization Network .Net 74

Scott Lowe

AUGUST 11, 2016

In this post you’ll find a collection of links to articles discussing the major data center technologies—networking, hardware, security, cloud computing, applications, virtualization…you name it! (If Numan Siddique describes the native DHCP support available in OVN (Open Virtual Network). Is the era of the storage admin over ?

Vmware 60

Vmware Hardware Storage Linux 60

Scott Lowe

JANUARY 14, 2016

Cumulus VX, if you aren’t aware, is a community-supported virtual appliance version of Cumulus Linux aimed at helping folks preview and test “full-blown” Cumulus Linux (which, of course, requires compatible hardware). Julian Dunn’s article on the oncoming train of enterprise container deployments is a good read.

Vmware 60

Vmware Devops Storage Linux 60

Linux Academy

MARCH 28, 2019

Add to that a desire for most enterprises to integrate cloud based workloads with legacy on-premises applications, and we have complex hybrid cloud deployments to deal with as the result. In many cases it becomes necessary in enterprise-grade production environments to add additional nodes. Automated Kubernetes Deployments.

Open Source 60

Open Source Devops Linux Cloud 60

Scott Lowe

AUGUST 1, 2014

CoreOS, in case you haven’t heard of it, is a highly streamlined Linux distribution designed with containers, massive server deployments, and distributed systems/applications in mind. systemd is not unique to CoreOS; it is the new standard system and service manager for Linux. A Brief Introduction to Linux Containers with LXC.

Linux 89

Linux Applications Open Source System 89

Scott Lowe

MAY 2, 2014

Visit the site for more information on virtualization, servers, storage, and other enterprise technologies. Interoperability Networking Virtualization Automation Linux OpenStack OSS' Feel free to post any questions, corrections, or clarifications in the comments below. Thanks for reading! Getting Hiera Working.

Linux 60

Linux Virtualization Resources Network 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. Visit the site for more information on virtualization, servers, storage, and other enterprise technologies. Interoperability Linux Virtualization OSS Ubuntu'

Virtualization 94

Virtualization Linux Open Source System 94

CTOvision

DECEMBER 11, 2015

In the private sector, IT can set up a self-provisioning environment that lets development teams move at the required speed without ceding control of enterprise resource management – things such as compute, storage, and random access memory (RAM).

Devops 150

Devops Government Applications Load Balancer 150

Scott Lowe

JUNE 9, 2014

Docker is introducing a new Enterprise Support program to give enterprises the warm cuddlies that using Docker in production environments is safe. Visit the site for more information on virtualization, servers, storage, and other enterprise technologies. Virtualization Short Take #13. Docker Making Its Move.

Virtualization 60

Virtualization Linux Applications Open Source 60

Scott Lowe

MAY 2, 2013

Visit the site for more information on virtualization, servers, storage, and other enterprise technologies. Interoperability Linux ActiveDirectory Kerberos LDAP SSH' Once the security context had been reset, the Kerberos authentication via SSH worked as expected. Thanks Tomas! Follow Up on ESX Server Integration.

Authentication 117

Authentication Linux Storage Security 117

Scott Lowe

JANUARY 7, 2013

For example, my work with KVM, OVS, Libvirt, and Puppet exposed some gaps in my base Linux knowledge, and this is reflected in my progress. Visit the site for more information on virtualization, servers, storage, and other enterprise technologies. As a result, progress was mixed. Looking Back: 2012 Project Report Card.

Report 103

Report Linux Virtualization Open Source 103

Scott Lowe

AUGUST 8, 2014

Welcome to Technology Short Take #43, another episode in my irregularly-published series of articles, links, and thoughts from around the web, focusing on data center technologies like networking, virtualization, storage, and cloud computing. Virtualization. Here’s hoping you find something useful. Networking.

Vmware 60

Vmware Linux Virtualization Network 60

Linux Academy

JANUARY 26, 2019

Cloud computing is not just about having virtual servers in an off-premises data center. Compute- and storage-intensive applications find their way to the cloud because of the need to scale so large that on-premises data centers are simply no longer feasible.

Cloud 60

Cloud Data Center Artificial Intelligence Applications 60

Scott Lowe

FEBRUARY 7, 2013

Reinforce base Linux knowledge. I’ll be focusing on Red Hat Enterprise Linux (RHEL) and RHEL variants, since that seems to be what’s most commonly found in enterprise deployments today. As with my base Linux knowledge, my primary goal here is to be able to do most anything that I need to do with Puppet.

Linux 92

Linux Data Center Network Open Source 92

Scott Lowe

JULY 18, 2014

This was an important step in educating myself on Linux, KVM, libvirt, and Open vSwitch (OVS), all of which are critical core components in most installations of OpenStack. The only consistency appeared to be with Ubuntu, as virtually (no pun intended) all my KVM guests were running Ubuntu. Linux Virtualization KVM'

Linux 60

Linux Virtualization Dell Education 60