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

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. I recently spotted Multipass , a virtualization solution for working with Linux instances.

Open Source 60

Open Source Vmware Authentication Storage 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

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

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

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. Operating Systems/Applications.

Vmware 60

Vmware Linux Network Storage 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

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

Scott Lowe

DECEMBER 8, 2016

In case you’re interested, here’s more details on CVE-2016-5195 , aka “Dirty Cow,” and how it might be used to allow a user to escape from a Linux container (like a Docker container). I noted that a Vagrant provider for vRealize Automation was recently released as an open source project. Cloud Computing/Cloud Management.

Vmware 60

Vmware Storage Intel Virtualization 60

Scott Lowe

AUGUST 11, 2016

Thinking of using a hardware VTEP (VXLAN Tunnel Endpoint) with VMware NSX? VMware recently announced Open Hardware Management Services (OHMS) , a project intended to help manage servers and switches in a software-defined data center (SDDC) context. What will happen when you combine GPUs and persistent storage?

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). Dwayne Sinclair (an NSX SE at VMware) has a write-up on what micro-segmentation is not. Servers/Hardware.

Vmware 60

Vmware Devops Storage Linux 60

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. storage enhancements. Networking.

Storage 92

Storage Vmware Linux Virtualization 92

Scott Lowe

MAY 27, 2022

marks the first release of the open source container orchestration platform that is signed using Sigstore (more details here ). For relevant storage news, I’d recommend having a look at J Metz’ Storage Short Take 42. This will become even more useful, in my opinion, when Linux support is added.

Virtualization 79

Virtualization Storage Programming Network 79

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. VMware recently GA’d vSphere 6.7,

Vmware 60

Vmware Storage Open Source Security 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

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. Another series on VMware NSX has popped up, this time from Jon Langemak. Networking.

Vmware 60

Vmware Linux Virtualization Network 60

Scott Lowe

MARCH 23, 2017

As opposed to just encrypting data at the transport level (although Acra does that between components of its architecture) or just encrypting data at the storage level (using an encrypted file system or similar), Acra targets encrypting data at the table/row/column level within a database. Acra is open source and available via GitHub.

Open Source 60

Open Source Storage Vmware Network 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

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

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. Servers/Hardware.

Devops 60

Devops Vmware Storage Open Source 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

Scott Lowe

DECEMBER 11, 2018

Noorali starts out with a quick introduction/overview of Helm, likening it to yum or apt for Linux packages. Chart Museum, an open source Helm chart repository server, also recently released an update. Moving into storage, Rice mentions Rook, which as of September moved from the Sandbox into the CNCF Incubator.

Open Source 60

Open Source Vmware Architecture Cloud 60

Scott Lowe

JULY 5, 2019

If you’re unfamiliar with public key infrastructure (PKI), digital certificates, or encryption, you may find this Linux Journal article helpful. As would be expected with any maturing open source project that is starting to see increased adoption, Kubernetes has seen its share of security vulnerabilities over the last couple of months.

Storage 60

Storage Hardware Open Source Vmware 60

Scott Lowe

DECEMBER 6, 2019

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. A complete OS based on the bare bones open source that backs macOS is apparently a real thing called PureDarwin. Nothing this time; sorry!

Vmware 60

Vmware Network Linux Hardware 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. configurations. Servers/Hardware. Nothing this time around! Nothing this time.

Open Source 60

Open Source Tools Policies Cloud 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). Richard Arnold shares some thoughts on VMware Cloud on AWS.

Load Balancer 60

Load Balancer Vmware Hardware Open Source 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

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

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 ). Without further ado, let’s get to the content. Networking. Servers/Hardware. Sorry, Charlie!

Vmware 60

Vmware Cloud Windows Linux 60

Scott Lowe

SEPTEMBER 3, 2014

To help resolve this issue, Cumulus Networks (and possibly Metacloud, I’m not sure of their involvement yet) has release an open source project called vxfld. VMware has a similar offering via the VMware vCloud Hybrid Service recovery-as-a-service offering. Running Hyper-V with Linux VMs? Virtualization.

Linux 60

Linux Network Vmware Disaster Recovery 60

Scott Lowe

NOVEMBER 6, 2014

For non-programmers, making a meaningful contribution to an open source project can be difficult; this is as true for OpenStack as for other open source projects. Using a Linux Environment. It wasn’t until just recently that I realized: why not just use a Linux VM? on Amazon EC2 (via Ravello Systems).

Tools 67

Tools Linux Open Source Cloud 67

Scott Lowe

AUGUST 16, 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.

Open Source 60

Open Source Network Linux Engineering 60

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

MARCH 2, 2017

Skydive is (in the project’s own words) an “open source real-time network topology and protocols analyzer.” Here’s a walkthrough to install Arch Linux on VirtualBox. Here’s a list of some open source Docker-related tools that developers may find useful. Thinking of virtualizing Linux on Hyper-V?

Linux 60

Linux Devops Open Source Virtualization 60

Scott Lowe

JULY 14, 2015

Michael Armstrong, an SE for VMware in the UK, has a write-up on how to configure DHCP Relay in NSX 6.1. Although slanted toward Network Functions Virtualization (NFV), this is a good article about why open source—and OpenStack, in particular—isn’t necessarily “free.”. You’re done. Thanks for sharing your experiences, Cormac!

Vmware 60

Vmware Devops Virtualization Network 60

Scott Lowe

DECEMBER 17, 2015

Looking for a step-by-step install guide for VMware NSX? Ray Budavari—who is an absolutely fantastic NSX resource—has a blog post up on the integration between VMware NSX and vRealize Automation. If you’d like to play around with Cumulus Linux but don’t have a compatible hardware switch, Cumulus VX is the answer. Networking.

Vmware 60

Vmware Linux Architecture Hardware 60

Scott Lowe

OCTOBER 23, 2013

with the Floodlight open source controller. Both of these are definitely worth reading if you want a bit more detail on how one of VMware’s newest technologies, VSAN, is going to impact the end-user computing (EUC) space. This is an older post from April 2013, but still useful, I think. Using Dell EqualLogic with VMFS?

Vmware 60

Vmware Network Virtualization Storage 60