Scott Lowe

MAY 27, 2022

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

Virtualization 79

Virtualization Storage Programming Network 79

Scott Lowe

APRIL 15, 2022

Xavier Avrillier walks readers through using Antrea (a Kubernetes CNI built on top of Open vSwitch—a topic I’ve touched on a time or two) to provide on-premise load balancing in Kubernetes. Servers/Hardware. Cabling is hardware, right? Virtualization. Cloud Computing/Cloud Management. Career/Soft Skills.

Linux 74

Linux Load Balancer IPv6 Licensing 74

Scott Lowe

NOVEMBER 25, 2020

Open source has become so critical to so many aspects of our computing infrastructure. Uh oh… more hardware exploits. I recently stumbled across Ricardo Sueiras’ “AWS open source news and updates” posts. Something about Linux, and Fedora in particular, just keeps drawing me back.

Linux 60

Linux Vmware Open Source Examples 60

Scott Lowe

MAY 17, 2019

Courtesy of Tigera, Alex Pollitt shares some guidelines on when Linux conntrack is no longer your friend. Servers/Hardware. Apparently Dell’s new docking stations support firmware updates via Linux. This article has good information on safely using /tmp and /var/tmp on systemd-powered Linux distributions.

Linux 60

Linux Dell Open Source Licensing 60

Scott Lowe

MARCH 2, 2020

Redpill Linpro talks to readers about their new routers running Cumulus Linux. Servers/Hardware. This article is about hardware, just not the hardware I’d typically talk about in this section—instead, it’s about Philips Hue light bulbs. I need to move it back to Windows from Linux. Virtualization.

Linux 60

Linux Windows Hardware 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. Servers/Hardware.

Vmware 60

Vmware Linux Open Source Devops 60

Scott Lowe

OCTOBER 5, 2018

Servers/Hardware. The big news in the hardware space recently was the article regarding the purported Chinese hardware supply chain attack. Of the (innumerable) articles commenting on the hardware hack, this article by Joe FitzPatrick and this ErrataSec article caught my eye. Virtualization.

Hardware 60

Hardware Open Source Vmware Linux 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

JUNE 18, 2021

The collection of links shared below covers a fairly wide range of topics, from old Sun hardware to working with serverless frameworks in the public cloud. Via Ivan Pepelnjak, I was pointed to Jon Langemak’s in-depth discussion of working with Linux VRFs. Servers/Hardware. Virtualization. Networking. Programming.

Vmware 60

Vmware Hardware Load Balancer Apple 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. Servers/Hardware What do you think of the ThinkPhone ? Rory McCune shares some information on configuring Caddy , a Go-based open source web server.

Programming 90

Programming Open Source Cloud Devops 90

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 27, 2019

Servers/Hardware. Cole Atkinson discusses the fact that osxfuse is no longer open source , and the ramifications of this development on open source in general. Virtualization. I recently spotted Multipass , a virtualization solution for working with Linux instances. Networking.

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. Matt Oswalt recently unveiled (and open sourced) a framework called ToDD, which stands for “Testing on Demand: Distributed”. Servers/Hardware. Finally, you might find the VMware Virtual SAN 6.2

Vmware 60

Vmware Linux Network Open Source 60

Scott Lowe

FEBRUARY 28, 2022

Components involved include the open source Kuma service mesh (in turn leveraging Envoy), anycast BGP, and mutual TLS (mTLS). Servers/Hardware. William Lam takes a look at some potentially interesting homelab hardware. Rory McCune writes about a CVE in the Linux kernel that could allow for container escape in Kubernetes.

Storage 79

Storage Hardware Policies Open Source 79

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). Servers/Hardware. Virtualization. Have I mentioned the ESXi Virtual Appliance ?

Vmware 60

Vmware Devops Storage Linux 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). Servers/Hardware.

Vmware 60

Vmware Hardware Storage Linux 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. Servers/Hardware.

Vmware 60

Vmware Open Source Linux Devops 60

Scott Lowe

MAY 25, 2017

Servers/Hardware. 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. Virtualization. Career/Soft Skills.

Linux 60

Linux Open Source Network Vmware 60

Scott Lowe

MAY 25, 2017

Servers/Hardware. 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. Virtualization. Career/Soft Skills.

Linux 60

Linux Open Source Network Vmware 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. Servers/Hardware. Alpine Linux 3.5 This is notable (for me, at least) primarily because a growing number of Docker images are based on Alpine Linux.

Vmware 60

Vmware Linux Open Source 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.” Servers/Hardware. I just noticed this article about using Nova flavor extra-specs to pass QoS data down to the virtualization layer. Here’s a walkthrough to install Arch Linux on VirtualBox. Virtualization.

Linux 60

Linux Devops Open Source Virtualization 60

Scott Lowe

JANUARY 19, 2018

Barry Peddycord shares an update on Ansible support for the Cumulus Linux NCLU. Servers/Hardware. Via Maish Saidel-Keesing, I saw this post about 10 open source Kubernetes tools for highly effective SRE and Ops teams. Ariya Hidayat shows how to run Debian under WSL (Windows Subsystem for Linux). Virtualization.

Vmware 60

Vmware Open Source Linux Cloud 60

Scott Lowe

DECEMBER 6, 2019

In perusing some of Brian’s content, I see lots of stuff at the intersection of networking and virtualization. The one caveat to his approach that may be worth mentioning is that some policies (a PodSecurityPolicy or the use of Open Policy Agent) may prevent the user from launching a Pod connected to the host’s network namespace.

Vmware 60

Vmware Network Linux Hardware 60

SPF13

MARCH 20, 2015

In the last few years open source has transformed the software industry. From Android to Wikipedia, open source is everywhere, but how does one succeed in it? What Every Successful Open Source Project Needs. Open Source Companies • Redhat $13B • Cloudera $3B • MongoDB $1.6B • Docker $.5B

Open Source 100

Open Source Linux Software Software 100

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). Servers/Hardware. Virtualization. Have I mentioned the ESXi Virtual Appliance ?

Devops 60

Devops Vmware Storage Open Source 60

Scott Lowe

JULY 5, 2019

Servers/Hardware. Although I’ve by and large moved away from Apple hardware (I still have a MacBook Pro running macOS that sees very little use, and a Mac Pro running Fedora), I did see this article regarding a new keyboard for the MacBook Air and MacBook Pro. Virtualization. It provides the basics behind X.509v3

Storage 60

Storage Hardware Open Source Vmware 60

Scott Lowe

APRIL 19, 2019

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

Open Source 60

Open Source Tools Policies Cloud 60

Scott Lowe

SEPTEMBER 10, 2013

Next, Intel talks about how they have worked to expose hardware features into OpenStack. This involves work in libvirt as well as OpenStack, so that OpenStack can be aware of CPU functionality (which, in turn, might allow cloud providers to charge extra for “premium images” that offer encryption support in hardware).

Intel 60

Intel Storage Open Source Hardware 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. Servers/Hardware. Virtualization. Running Hyper-V with Linux VMs? Is Intel having second thoughts about software-defined infrastructure? LTS server.

Linux 60

Linux Network Vmware Disaster Recovery 60

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. I found this series of posts to be helpful when I was working on configuring LACP with Open vSwitch (I hope to have a blog post on that up soon).

Storage 92

Storage Vmware Linux Virtualization 92

Scott Lowe

AUGUST 16, 2017

Servers/Hardware. 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. Virtualization.

Open Source 60

Open Source Network Linux Engineering 60

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

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

FEBRUARY 9, 2018

Servers/Hardware. I’m a 1Password user (just wish they’d release a “real” Linux client and bring back support for local vaults to all platforms), so seeing this article on how Agile Bits (the company behind 1Password) is using Terraform with AWS was pretty cool. Virtualization.

Vmware 60

Vmware Linux Network Storage 60

Scott Lowe

SEPTEMBER 12, 2013

This is session COMS003, titled “Enabling Network Function Virtualization and Software Defined Networking with the Intel Open Network Platform Server Reference Architecture Design.” The speakers are Frank Schapfel, Senior Product Line Manager with Intel, and Brian Skerry, Open Networks System Architect with Intel.

Intel 60

Intel Architecture Virtualization Network 60

Galido

OCTOBER 18, 2018

Since the launch of the.NET Core open source development platform in June 2016, it can be used on non-Windows machines. Java is more than 20 years old; it is used by millions of developers and on billions of devices around the world, and can be run on any hardware and operating system through the Java virtual machine.

Programming 81

Programming Operating Systems Open Source Applications 81