Scott Lowe

MARCH 23, 2017

Networking. Biruk Mekonnen has an introductory article on using Netmiko for network automation. Gabriele Gerbino has a nice write-up about Cisco’s efforts with APIs ; his article includes a brief description of YANG data models and a comparison of working with network devices via SSH or via API. Servers/Hardware.

Open Source 60

Open Source Storage Vmware Network 60

The Accidental Successful CIO

DECEMBER 6, 2017

The social networking giant Facebook has a data center problem that probably looks very much like the challenges that you are currently facing. The box has four ports that are each designed to send data over fiber optic networks at up to 200 Gbps. Facebook, the social networking giant, has faced the same problems.

Data Center 124

Data Center Data Hardware Open Source 124

Scott Lowe

JANUARY 28, 2016

Networking. 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. See this SDx Central article or this Network World article for more details.). The project itself is open source and hosted on GitHub.

Vmware 60

Vmware Linux Open Source Devops 60

Storage IO Blog

APRIL 12, 2015

It’s springtime in Kentucky and recently I had the opportunity to have a conversation with Kendrick Coleman to talk about S3motion, Buckets, Containers, Objects, AWS S3, Cloud and Object Storage, node.js, EMCcode and open source among other related topics which are available in a podcast here, or video here and available at StorageIO.tv.

Cloud 40

Cloud Storage Backup Open Source 40

Scott Lowe

FEBRUARY 9, 2018

Networking. Matt Oswalt tackles the idea of “intent-driven” or “intent-based” networking—all the rage right now—and outlines how something like this must interact with domains outside of networking in order to be effective. Who knows, maybe I’ll throw a rant or two in there.)

Vmware 60

Vmware Linux Network Storage 60

Scott Lowe

JANUARY 14, 2016

Networking. NAPALM (Network Automation and Programmability Layer with Multivendor support) looks like a really cool tool. Gabriele (the author of that post) also has a nice article on some resources to get you started with network automation. Here’s hoping you find something useful to you! Virtualization.

Vmware 60

Vmware Devops Storage Linux 60

Scott Lowe

APRIL 15, 2022

My personal and professional life has kept me busy over the last couple of months, so things have been quiet here on the blog. Networking. Want to understand kube-proxy , a key part of Kubernetes networking, a bit better? More information is available in this Helm blog post. Start here. Version 3.8.0 Virtualization.

Linux 74

Linux Load Balancer IPv6 Licensing 74

Scott Lowe

FEBRUARY 28, 2022

Networking. Koyeb describes , at a high level, the global networking stack for their serverless platform. Components involved include the open source Kuma service mesh (in turn leveraging Envoy), anycast BGP, and mutual TLS (mTLS). Jim Jones has an article on getting started with S3-compatible object storage.

Storage 79

Storage Hardware Policies Open Source 79

Scott Lowe

JUNE 24, 2022

Networking. Tetragon is Isovalent’s newly open-sourced security framework. Read more about it on the Isovalent blog. Although it isn’t technically specific to storage, there are significant storage themes in this article on what might happen if you lock yourself out of your digital life.

Vmware 74

Vmware Linux Storage Virtualization 74

Scott Lowe

APRIL 19, 2019

Networking. Part 2 of Stark and Wayne’s container-to-container networking for Cloud Foundry and Kubernetes dig deep into CNI workings. Milind Gunjan shares some tips for troubleshooting Linux bridged networking on a KVM host. This article discusses four open source secrets management tools. configurations.

Open Source 60

Open Source Tools Policies Cloud 60

Scott Lowe

OCTOBER 5, 2018

Here’s another collection of articles and blog posts about some of the common technologies that modern IT professionals will typically encounter. Networking. Brian Boucheron provides a great article on how to inspect and debug Kubernetes network primitives. Welcome to Technology Short Take #105! Servers/Hardware.

Hardware 60

Hardware Open Source Vmware Linux 60

The Accidental Successful CIO

AUGUST 14, 2013

The petabytes of content that may consist of video, audio, and images is too large to be moved across your company’s network let alone be backed up. The reason that tape storage might be something that once again you should consider as you enter into the world of big data is that all data is not created the same.

Big Data 183

Big Data Backup Data Storage 183

Scott Lowe

AUGUST 6, 2021

Networking. Back in April of this year, Patrick Ogenstad announced Netrasp , a Go package for writing network automation tooling in Go. I saw this blog post about Curiefense , an open source Envoy extension to add WAF (web application firewall) functionality to Envoy. Servers/Hardware.

Open Source 60

Open Source Load Balancer WAN Architecture 60

Galido

APRIL 27, 2020

Information Technology Blog - - Why Kubernetes Is So Popular in the Tech World - Information Technology Blog. However, even though the project was promising, in 2015, Google released this tool as an open-source project. Kubernetes — an orchestration tool like no other in the world! Great industry support and community.

Load Balancer 94

Load Balancer Tools Applications Open Source 94

Scott Lowe

JANUARY 28, 2016

Networking. 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. See this SDx Central article or this Network World article for more details.). The project itself is open source and hosted on GitHub.

Vmware 60

Vmware Open Source Linux Devops 60

Scott Lowe

MAY 25, 2017

Networking. I enjoyed Dave McCrory’s series on the future of the network (see part 1 , part 2 , part 3 , and part 4 —part 5 hadn’t gone live yet when I published this). Michael Kashin has a handy little tool that functions like ssh-copy-id on servers, but for network devices (leveraging Netmiko). In any case, enjoy!

Linux 60

Linux Open Source Network Vmware 60

Scott Lowe

MAY 25, 2017

Networking. I enjoyed Dave McCrory’s series on the future of the network (see part 1 , part 2 , part 3 , and part 4 —part 5 hadn’t gone live yet when I published this). Michael Kashin has a handy little tool that functions like ssh-copy-id on servers, but for network devices (leveraging Netmiko). In any case, enjoy!

Linux 60

Linux Open Source Network Vmware 60

Scott Lowe

JULY 5, 2019

Networking. 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. This blog post outlines some of the changes/new features in kubeadm with the Kubernetes 1.15 Kubernetes 1.15

Storage 60

Storage Hardware Open Source Vmware 60

Scott Lowe

MARCH 17, 2016

Networking. At DevOps Networking Forum 2016, I had the opportunity to share a presentation on some Linux networking options. Here’s another topic that came up at the recent DevOps Networking Forum: Spotify’s SDN Internet Router (SIR). Here’s some information on Nuage Networks’ experimental Docker Network plugin.

Vmware 60

Vmware Linux Network Open Source 60

Scott Lowe

OCTOBER 5, 2012

Networking. Some folks from Nicira (now part of VMware) recently published a blog post discussing the OVSDB IETF draft (see here ). I think this three-part series on new network models for cloud computing ( part 1 , part 2 , and part 3 ), while almost a year old, is quite good. storage enhancements. It starts here.

Storage 92

Storage Vmware Linux Virtualization 92

Scott Lowe

JANUARY 14, 2016

Networking. NAPALM (Network Automation and Programmability Layer with Multivendor support) looks like a really cool tool. Gabriele (the author of that post) also has a nice article on some resources to get you started with network automation. Here’s hoping you find something useful to you! Virtualization.

Devops 60

Devops Vmware Storage Open Source 60

Scott Lowe

APRIL 24, 2020

Networking. This isn’t necessarily networking-related, but it does pertain to a very well-known content creator who specializes in networking. Andreas Wittig takes a look at some advanced AWS networking pitfalls to avoid. Here’s a primer on hot potato routing vs. cold potato routing. ‘Nuff said.

Storage 60

Storage Tools Architecture Network 60

Scott Lowe

JANUARY 19, 2018

Networking. Matt Klein breaks down service mesh components , using terms networking professionals know well, like “data plane” and “control plane.” ” Those familiar with networking concepts will identify well with the ideas in this article, I think. Here’s hoping you find something useful!

Vmware 60

Vmware Open Source Linux Cloud 60

Scott Lowe

APRIL 3, 2013

Clearly there are some real benefits to using OpenFlow in certain use cases (here’s one example ), but that doesn’t mean OpenFlow—especially hop-by-hop OpenFlow, where OpenFlow is involved at every “hop” of the packet forwarding process throughout the network—is the right solution for all environments.

Load Balancer 108

Load Balancer Network HP Virtualization 108

Scott Lowe

MAY 4, 2017

Networking. There’s lots of talk about applying test-driven development (TDD) principles in various automation contexts, but I like the fact that Ajay Chenampara provides some practical examples in his blog post on applying TDD in network automation using Ansible. You can get more details via this Google blog post.

Vmware 60

Vmware Storage Network Examples 60

Scott Lowe

MARCH 2, 2020

Networking. Said van de Klundert has a post on screen scraping basics for network engineers. For network engineers just getting started with network automation, I suspect that the information shared here may prove quite useful. For readers who may be new to networking, Daniel Wray has a write-up on network cabling.

Linux 60

Linux Windows Hardware Network 60

Scott Lowe

APRIL 8, 2013

Networking. —but I wonder how much cooperation Big Switch will get from the major networking vendors with regards to OpenFlow interoperability now that Big Switch is competing even more directly with them via Switch Light. Just getting started in the networking field? Cormac Hogan has more information in this blog post.

Storage 111

Storage Vmware WAN Virtualization 111

Scott Lowe

DECEMBER 6, 2019

Networking. Brian Linkletter has a post on how to run the Antidote network emulator on KVM for better performance. Antidote, as I understand it, is the network emulator that runs the labs on the NRELabs web site (which is another cool thing in and of itself). Enjoy some light reading over your festive holiday season!

Vmware 60

Vmware Network Linux Hardware 60

Scott Lowe

MAY 3, 2019

Networking. Via the Kubernetes blog , Box announced it has open sourced a project called kube-iptables-tailer , which turns packet drops from iptables into Kubernetes events that can be logged for easier troubleshooting. Via BlueCat Networks, John Capobianco shares his network automation journey.

Vmware 60

Vmware Open Source Intel Applications 60

Scott Lowe

MARCH 2, 2017

Networking. I was sure I had mentioned Skydive before, but apparently not (a grep of all my blog posts found nothing), so let me rectify that first. Skydive is (in the project’s own words) an “open source real-time network topology and protocols analyzer.” Welcome to Technology Short Take #79! Virtualization.

Linux 60

Linux Devops Open Source Virtualization 60

Scott Lowe

AUGUST 16, 2017

Networking. I enjoyed Dave McCrory’s series on the future of the network (see part 1 , part 2 , part 3 , and part 4 —part 5 hadn’t gone live yet when I published this). Michael Kashin has a handy little tool that functions like ssh-copy-id on servers, but for network devices (leveraging Netmiko).

Open Source 60

Open Source Network Linux Engineering 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 Networking. Numan Siddique describes the native DHCP support available in OVN (Open Virtual Network).

Vmware 60

Vmware Hardware Storage Linux 60

Scott Lowe

NOVEMBER 7, 2014

Networking. This post by Matt Oswalt—the first in a series, apparently—provides a great introduction to 5 development tools for network engineers. Matt also recently posted part 4 (of 5) in his series on SDN protocols; this post covers OpFlex and declarative networking. I hope you are able to glean something useful.

Vmware 69

Vmware Linux Storage Virtualization 69

Scott Lowe

APRIL 27, 2018

Networking. Cilium, the open source project working to bring eBPF-powered networking and security to Kubernetes environments, has hit the 1.0 The Kubernetes blog has some more details on the Container Storage Interface (CSI) in Kubernetes 1.10, which has moved from alpha to beta as part of the 1.10

Vmware 60

Vmware Storage Open Source Security 60

Scott Lowe

FEBRUARY 11, 2016

Networking. see below in the “Operating Systems/Applications” section), Metaswitch has announced a Container Networking Interface (CNI) plugin for Project Calico. First up, Matt goes on a bit of a rant regarding SDN and network automation. Both these articles came out of Network Field Day 11 , by the way.).

Vmware 60

Vmware Network Operating Systems Virtualization 60

Scott Lowe

FEBRUARY 24, 2018

Networking. The engineering team at Lyft recently discussed a new overlay-free networking approach they’ve been working on for Kubernetes: IPVLAN-based CNI stack for running within VPCs on AWS. (For VPCs, or Virtual Private Clouds, are Amazon’s software-defined networking mechanism for workloads running on AWS.).

Vmware 60

Vmware Load Balancer Network Open Source 60

Linux Academy

MARCH 28, 2019

High speed low latency networks now allow us to add these nodes anywhere in a cloud infrastructure and configure them under existing load balancers. Once federated storage solutions other than the Prometheus time series database may be used to record metrics over longer periods of time.

Open Source 60

Open Source Devops Linux Cloud 60