Scott Lowe

NOVEMBER 25, 2020

Operating Systems/Applications. You may have heard of eBPF, the Linux technology that is reshaping Linux applications (and in some ways reshaping Linux itself). You may have heard of eBPF, the Linux technology that is reshaping Linux applications (and in some ways reshaping Linux itself).

Linux 60

Linux Vmware Open Source Examples 60

Scott Lowe

SEPTEMBER 2, 2019

Last week at VMworld , I had the opportunity to meet with Lightbits Labs , a relatively new startup working on what they called “disaggregated storage.” So what is “disaggregated storage”? Lightbits has their own operating system, LightOS, which runs on industry-standard x64 servers from Dell, HP, Lenovo, etc.

Meeting 60

Meeting Storage HP Dell 60

Scott Lowe

AUGUST 27, 2021

I have a fairly diverse set of links for readers this time around, covering topics from microchips to improving your writing, with stops along the way in topics like Kubernetes, virtualization, Linux, and the popular JSON-parsing tool jq. Michael Kashin shares the journey of containerizing NVIDIA Cumulus Linux. Networking. So useful.).

Linux 90

Linux Load Balancer Malware Virtualization 90

Scott Lowe

DECEMBER 6, 2013

Of course, I am a fan of network virtualization, since I work with/on VMware NSX.). Martijn Smit has launched a series of articles on VMware NSX. Want some additional information on layer 2 and layer 3 services in VMware NSX? Operating Systems/Applications. Here’s a good source. Any thoughts?

Vmware 60

Vmware Storage Linux Network 60

Scott Lowe

NOVEMBER 17, 2016

Cumulus Networks recently introduced the Cumulus Linux Network Command Line Utility (NCLU) , which provides a more unified front-end to configuring switches running Cumulus Linux. Kevin Houston discusses workload acceleration options—specifically, storage acceleration via NVMe or PCIe SSDs—for blade servers. Servers/Hardware.

Linux 60

Linux Vmware Storage Network 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

JUNE 2, 2016

Anthony Burke has written a script that uses VMware NSX to protect VMware Log Insight instances. Dmitri Kalintsev examines some options for addressing storage-related connectivity in NSX environments. Ajeet Singh Raina has a write-up on running Docker Datacenter on VMware vSphere. Operating Systems/Applications.

Vmware 60

Vmware Virtualization Linux Windows 60

Scott Lowe

JULY 21, 2016

First up, there’s a great article on using IPVLAN with Docker and Cumulus Linux (with a tie back to sFlow, naturally!). Here’s a walkthrough by Cody Bunch on setting up BGP on Linux with Cumulus Quagga. These posts are a bit slanted toware VMware vSphere environments, but very detailed, very thorough, and very useful.

Vmware 60

Vmware Linux Storage Hardware 60

Scott Lowe

FEBRUARY 9, 2018

Sam McGeown has a nice diagram of the communications channels between the various VMware NSX components. Operating Systems/Applications. 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.

Vmware 60

Vmware Linux Network Storage 60

Scott Lowe

NOVEMBER 10, 2017

VMware recently released an updated to PowerCLI (version 6.5.3), and with it comes a set of cmdlets that provide low-level access to the NSX-T REST API. Lior Kamrat has a multi-part series on an architecture that blends Mesosphere DC/OS, Azure, Docker, and VMware vSphere. Operating Systems/Applications. Networking.

Vmware 60

Vmware Storage Engineering Network 60

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 Operating Systems/Applications. Servers/Hardware. or higher).

Vmware 60

Vmware Open Source Linux Cloud 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. Operating Systems/Applications Dewan Ahmed has a great run-down on options for documentation-as-code. to version 8.0.

Programming 90

Programming Open Source Cloud Devops 90

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? Servers/Hardware.

Vmware 60

Vmware Hardware Storage Linux 60

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). Blueprints that demonstrate VMware-Chef integration. Operating Systems/Applications. Cloud Computing/Cloud Management. Good times.

Vmware 60

Vmware Storage Intel Virtualization 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. Operating Systems/Applications. Have fun reading! Networking.

Vmware 60

Vmware Linux Network Open Source 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

JULY 22, 2013

Here’s a decent two-part series about running Vyatta on VMware Workstation ( part 1 and part 2 ). Operating Systems/Applications. Need to do some port forwarding on a Linux box and want to automate the configuration with Puppet? Could we use OpenFlow to build better internet exchanges? Here’s one idea.

Vmware 106

Vmware Virtualization Network Linux 106

Scott Lowe

NOVEMBER 30, 2018

Christian Kellner provides a brief reminder that not all USB-C ports are Thunderbolt ports, and updates everyone on the status of bolt (Linux utility for working with Thunderbolt ports and peripherals). Operating Systems/Applications. Matt Oswalt shares some details on how NRE Labs implements “curriculum-as-code.”

Vmware 60

Vmware Authentication Virtualization Storage 60

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. Operating Systems/Applications. could make RDP connections to modern Windows systems. could make RDP connections to modern Windows systems.

Vmware 60

Vmware Linux Open Source Data Center 60

Scott Lowe

FEBRUARY 11, 2021

I’ve got a wide range of topics for you this time around—eBPF, Falco, Snort, Kyverno, etcd, VMware Code Stream, and more. I recently mentioned on Twitter that I was considering building out a new Linux PC to replace my aging Mac Pro (it’s a 2012 model, so going on 9 years old). Operating Systems/Applications.

Vmware 60

Vmware Storage Study Network 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. Operating Systems/Applications.

Storage 92

Storage Vmware Linux Virtualization 92

Scott Lowe

AUGUST 27, 2021

I have a fairly diverse set of links for readers this time around, covering topics from microchips to improving your writing, with stops along the way in topics like Kubernetes, virtualization, Linux, and the popular JSON-parsing tool jq along the way. Michael Kashin shares the journey of containerizing NVIDIA Cumulus Linux.

Linux 60

Linux Load Balancer Malware Virtualization 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 Linux Open Source Devops 60

Scott Lowe

DECEMBER 27, 2019

Teammate Alex Brand has a look at VMware’s new OVS-based CNI plugin, Antrea. Operating Systems/Applications. I recently saw an article stating that VMware is going to use Minio as the object storage platform for Kubernetes, but the evidence presented in the article is anything but convincing. Networking.

Open Source 60

Open Source Vmware Authentication Storage 60

Scott Lowe

MAY 27, 2022

Operating Systems/Applications. 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. Viktor van den Berg shares his CKAD exam experience and some tips on how to prepare. Programming.

Virtualization 79

Virtualization Storage Programming Network 79

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

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. Operating Systems/Applications. You can get more details via this Google blog post.

Vmware 60

Vmware Storage Network Examples 60

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

APRIL 27, 2018

VMware has released a PowerCLI preview/fling for NSX-T; Kyle Ruddy has a write-up here. VMware has launched a SIG for Kubernetes on VMware. Operating Systems/Applications. VMware recently GA’d vSphere 6.7, Feedback is always welcome! Networking. Part 1 is available here. Virtualization.

Vmware 60

Vmware Storage Open Source Security 60

Scott Lowe

AUGUST 16, 2017

This is my irregularly-published collection of links and articles from around the Internet related to the major data center technologies: networking, hardware, security, cloud computing, applications/OSes, storage, and virtualization. Want to install VMware NSX in your home lab, but concerned about resource utilization? Networking.

Vmware 60

Vmware Storage Network Windows 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

DECEMBER 22, 2018

Operating Systems/Applications. This post reminds me that I need to write up the procedure I followed to get the Prometheus Operator scraping metrics from a TLS-secured etcd cluster bootstrapped using kubeadm.). Dave Taylor provides s ome tips for configuring VMware Fusion for Linux usage. Virtualization.

Vmware 60

Vmware Linux Hardware Case Study 60

Scott Lowe

OCTOBER 9, 2016

That prompted Cody Bunch to write this article on setting up a topology with BGP on Linux using the topology converter , which I’m now mentioning in this Technology Short Take. PowerShell on Cumulus Linux on a network switch? Clifford Haas has a review of VMware NSX (this is from back in January). Operating Systems/Applications.

Vmware 60

Vmware Case Study Linux Network 60

Scott Lowe

NOVEMBER 30, 2012

I adopted OS X as my operating system of choice in 2003 because I wanted a stable, powerful, UNIX-based operating system. Visit the site for more information on virtualization, servers, storage, and other enterprise technologies. Apple and VMware…or Xen? Macintosh iPhone Linux' Apple on Intel.

Operating Systems 131

Operating Systems Apple Applications Linux 131

Scott Lowe

SEPTEMBER 22, 2017

Vincent Bernat has a really in-depth article on IPv4 route lookup on Linux (and one on IPv6 route lookup as well). Massimo Re Ferre has a great article discussing VMware Cloud on AWS versus Azure Stack and breaking down the differences between the two approaches. Operating Systems/Applications. Networking. RIP Solaris.

Storage 60

Storage Vmware Load Balancer Network 60

Scott Lowe

JUNE 18, 2017

Colin Lynch shares some details on his journey with VMware NSX (so far). I wouldn’t take this information as gospel, but here’s a breakdown of some of the IPv6 support available in VMware NSX. Operating Systems/Applications. Servers/Hardware. This post has a list of 5 Docker utilities you may find helpful. RegEx tester.

Windows 60

Windows Vmware Virtualization Linux 60

Scott Lowe

JUNE 18, 2017

Colin Lynch shares some details on his journey with VMware NSX (so far). I wouldn’t take this information as gospel, but here’s a breakdown of some of the IPv6 support available in VMware NSX. Operating Systems/Applications. Servers/Hardware. This post has a list of 5 Docker utilities you may find helpful. RegEx tester.

Windows 60

Windows Vmware Virtualization Linux 60