Scott Lowe

JANUARY 19, 2018

This is pretty cool: a WYSIWYG topology designer for VMware NSX. Barry Peddycord shares an update on Ansible support for the Cumulus Linux NCLU. The VMware Cloud-Native Apps group has a breakdown of some of the new features/functionality found in the 1.9 Klaus Aschenbrenner shares how he designed his VMware vSAN-based home lab.

Vmware 60

Vmware Open Source Linux Cloud 60

Scott Lowe

MARCH 17, 2016

At DevOps Networking Forum 2016, I had the opportunity to share a presentation on some Linux networking options. I recently came across a couple useful troubleshooting guides, one for Open vSwitch (OVS) and OpenStack Neutron and one for VMware NSX. Have fun reading! Networking. It’s a pretty interesting read, in my opinion.

Vmware 60

Vmware Linux Network Open Source 60

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 Here’s a good source.

Vmware 60

Vmware Storage Linux Network 60

Scott Lowe

JANUARY 28, 2016

The rise of Linux in importance in the networking industry continues, with Arista announcing enhancements to Arista EOS to support—among other things—Docker containers. As a partial counterpoint to the increased use/visibility of Linux in the networking industry, check out Ivan’s take on Dell’s OS10 announcement. Networking.

Vmware 60

Vmware Open Source Linux Devops 60

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

DECEMBER 29, 2016

Andrey Khomyakov shares some information on automating the setup of whitebox switches running Cumulus Linux in part 2 of this series on learning network automation. Michael Preston shares his thoughts on containers in a post titled “A VMware guy’s perspective on containers.” Alpine Linux 3.5 Virtualization. Neat trick!

Vmware 60

Vmware Linux Open Source Data Center 60

Scott Lowe

DECEMBER 27, 2019

Teammate Alex Brand has a look at VMware’s new OVS-based CNI plugin, Antrea. Cole Atkinson discusses the fact that osxfuse is no longer open source , and the ramifications of this development on open source in general. Virtualization. Spend time with your family instead. Networking. Servers/Hardware.

Open Source 60

Open Source Vmware Authentication Storage 60

Scott Lowe

SEPTEMBER 8, 2023

This is a slightly older article (from January of this year) in which Josh Saul of Hedgehog pays homage to the achievements of Cumulus Networks in the open networking movement. Michael Kashin has a good post on source IP address selection in Linux. Here are some design considerations for Wi-Fi 6E (6GHz) networks.

Vmware 74

Vmware Network Hardware Cloud 74

Scott Lowe

MAY 27, 2022

network virtualization). Is the relationship between network virtualization and service mesh closer than some folks might wish to admit? marks the first release of the open source container orchestration platform that is signed using Sigstore (more details here ). Virtualization. Servers/Hardware. Kubernetes 1.24

Virtualization 79

Virtualization Storage Network Programming 79

Scott Lowe

OCTOBER 30, 2013

Recently a couple of open source software (OSS)-related announcements have passed through my Inbox, so I thought I’d make brief mention of them here on the site. Ceph , the open source distributed software system, is now coming in a fully-supported version aimed at enterprise markets. Mirantis OpenStack.

Open Source 60

Open Source Linux Vmware Enterprise 60

Scott Lowe

JANUARY 27, 2023

Back in October of last year, Tom Hollingsworth weighed in on Hedgehog , the networking company that has set out to commercialize SONiC, a Linux-based NOS used extensively in Azure. Rory McCune shares some information on configuring Caddy , a Go-based open source web server. Servers/Hardware What do you think of the ThinkPhone

Programming 90

Programming Open Source Cloud Devops 90

Scott Lowe

APRIL 15, 2022

Although Linux is often considered to be superior to Windows and macOS with regard to security, it is not without its own security flaws. I, personally, would posit that Linux can be more secure than other platforms, but it requires proper configuration and can still be undone by a loose nut behind the keyboard. Virtualization.

Linux 74

Linux Load Balancer IPv6 Licensing 74

Linux Academy

MARCH 15, 2019

I had the pleasure of speaking with one of our amazing students about his experience training for AWS certifications on Linux Academy. My job encompasses supporting Linux and VMware on physical servers. I think we have close to 1600 virtual instances at any given time, spread across two data centers separated by 10 miles.

Linux 60

Linux Training Course Vmware 60

Scott Lowe

JUNE 18, 2021

Via Ivan Pepelnjak, I was pointed to Jon Langemak’s in-depth discussion of working with Linux VRFs. Patrick Kremer walks through using Postman to implement BGP route filtering with VMware Cloud on AWS. Hari Rana has a detailed discussion of security concerns regarding Flatpak (a packaging format for Linux applications).

Vmware 60

Vmware Hardware Load Balancer Apple 60

Scott Lowe

DECEMBER 8, 2016

This is an interesting project to watch, I think—it’s porting OVN (Open Virtual Network) from a “traditional” OvS back-end to an IOVisor-based back-end (IOVisor implements the data plane in eBPF). I noted that a Vagrant provider for vRealize Automation was recently released as an open source project. Virtualization.

Vmware 60

Vmware Storage Intel Virtualization 60

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). Virtualization. Networking.

Vmware 60

Vmware Hardware Storage Linux 60

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. Ivan Pepelnjak asks the question, “Is OpenFlow the best tool for overlay virtual networks?”

Vmware 60

Vmware Linux Virtualization Network 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). Dwayne Sinclair (an NSX SE at VMware) has a write-up on what micro-segmentation is not. Virtualization.

Vmware 60

Vmware Devops Storage Linux 60

Scott Lowe

OCTOBER 5, 2018

Sathyajith Bhat covers five open source tools for container security. Grant Orchard has a three-part series (so far) on VMware Cloud Assembly ( part 1 , part 2 , part 3 ). The folks at Platform9 recently open-sourced a tool called etcdadm (inspired by kubeadm ). Here’s a nice deep dive on Linux executables.

Hardware 60

Hardware Open Source Vmware Linux 60

Scott Lowe

FEBRUARY 9, 2018

Sam McGeown has a nice diagram of the communications channels between the various VMware NSX components. Michael Wittig shares some details on migrating to Amazon Linux 2. Nick Korte shares some “lessons learned” as his team explored VMware vSAN as a storage solution. Virtualization. Career/Soft Skills.

Vmware 60

Vmware Linux Network Storage 60

CTOvision

JANUARY 23, 2014

As CSO, Mike is responsible for Cloudera’s product strategy, open source leadership, engineering alignment and direct engagement with customers. Prior to Cloudera Mike was CEO of Sleepycat Software, makers of Berkeley DB, the open source embedded database engine. Bob Gourley, Editor, CTO Vision.

CTO 294

CTO Big Data Data HP 294

Scott Lowe

OCTOBER 5, 2012

Some folks from Nicira (now part of VMware) recently published a blog post discussing the OVSDB IETF draft (see here ). 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. Virtualization. Networking.

Storage 92

Storage Vmware Linux Virtualization 92

Scott Lowe

MAY 25, 2017

John Welsh has a post on why someone might use VMware NSX. Here’s a quick post on nftables , the (eventual) Linux replacement for iptables. Check out this blog on work done to bring firmware updates into the land of Linux. This was the source of some confusion in the past; the move to Moby sidesteps those concerns.

Linux 60

Linux Open Source Network Vmware 60

Scott Lowe

MAY 25, 2017

John Welsh has a post on why someone might use VMware NSX. Here’s a quick post on nftables , the (eventual) Linux replacement for iptables. Check out this blog on work done to bring firmware updates into the land of Linux. This was the source of some confusion in the past; the move to Moby sidesteps those concerns.

Linux 60

Linux Open Source Network Vmware 60

CTOvision

DECEMBER 21, 2013

As CSO, Mike is responsible for Cloudera’s product strategy, open source leadership, engineering alignment and direct engagement with customers. Prior to Cloudera Mike was CEO of Sleepycat Software, makers of Berkeley DB, the open source embedded database engine.

Big Data 283

Big Data CTO Data HP 283

Scott Lowe

DECEMBER 6, 2019

In perusing some of Brian’s content, I see lots of stuff at the intersection of networking and virtualization. A new VPN security flaw has been uncovered that affects a wide range of UNIX- and Linux-based systems. Here’s an article from Marko Saric on his switch from macOS to Linux. Virtualization.

Vmware 60

Vmware Network Linux Hardware 60

Scott Lowe

AUGUST 12, 2014

Platform9 was launched by former VMware veterans with the goal of making it easy for companies to consume their existing infrastructure in an agile, cloud-like fashion. For now, at least, that is especially true for OpenStack, which can be notoriously difficult for newcomers to the popular open source cloud management environment.

Cloud 60

Cloud Open Source Virtualization Fashion 60

Scott Lowe

APRIL 27, 2018

VMware has released a PowerCLI preview/fling for NSX-T; Kyle Ruddy has a write-up here. Cilium, the open source project working to bring eBPF-powered networking and security to Kubernetes environments, has hit the 1.0 VMware has launched a SIG for Kubernetes on VMware. Virtualization. Networking.

Vmware 60

Vmware Storage Open Source Security 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). Dwayne Sinclair (an NSX SE at VMware) has a write-up on what micro-segmentation is not. Virtualization.

Devops 60

Devops Vmware Storage Open Source 60

Scott Lowe

APRIL 19, 2019

Milind Gunjan shares some tips for troubleshooting Linux bridged networking on a KVM host. Tim Hinrichs discusses securing the Kubernetes API with Open Policy Agent. This article discusses four open source secrets management tools. Virtualization. configurations. Servers/Hardware. Nothing this time around!

Open Source 60

Open Source Tools Policies Cloud 60

Scott Lowe

SEPTEMBER 23, 2015

Not sure if this link belongs in Networking or in Virtualization, but we’ll stick it here since it talks about VMware NSX. Here’s a three-part series on running VMware NSX on vSphere on AWS via Ravello Systems ( part 1 , part 2 , and part 3 ). Virtualization. Without further ado, let’s get to the content. Networking.

Vmware 60

Vmware Cloud Windows Linux 60

Scott Lowe

OCTOBER 14, 2017

Romain Decker has an “under the hood” look at the VMware NSX load balancer. I’ll keep an eye open for links to include next time around. The popular open source container registry project, Harbor , has released a new version (version 1.2). Virtualization. Servers/Hardware.

Load Balancer 60

Load Balancer Vmware Hardware Open Source 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

Galido

MARCH 19, 2019

These areas of IT include general IT and technology, security, IT feeds, cloud computing, data center, mobile, social media, tips and tricks, virtualization, and operating system and software blogs. Covering vista, Linux, Ubuntu, SQL server, mac os, enterprise, UNIX, open source, AMD, ERP – Techworld.com. Engadget Mobile.

Resources 113

Resources Mobile Data Center Security 113

Scott Lowe

JANUARY 3, 2014

Reinforce base Linux knowledge. If anyone has any other suggestions for additional tools, I’m open to your feedback. Reinforce base Linux knowledge: I’ve been suggesting to VMUG attendees that they needed to learn Linux, as it’s popping up all over the place in all sorts of roles. So, how did I do?

Report 60

Report Linux Network Data Center 60

Scott Lowe

JULY 14, 2015

Want to know a bit more about how OVN (Open Virtual Network) plans to integrate support for containers? Michael Armstrong, an SE for VMware in the UK, has a write-up on how to configure DHCP Relay in NSX 6.1. No worries, Emad Younis has a write-up on using Ravello to try out VMware Integrated OpenStack. (If Networking.

Vmware 60

Vmware Devops Virtualization Network 60

Scott Lowe

MAY 4, 2017

Mircea’s right—bugs will happen in all software (VMware NSX has had its share, for example), but the key is in how it’s handled. Doug Youd of Cumulus has an excellent 3-part series on the use of LACP in VMware vSphere environments. Ajay Chenampara shares his workaround for storing GitHub credentials on Linux. (If Virtualization.

Vmware 60

Vmware Storage Network Examples 60