Scott Lowe

MARCH 21, 2014

Some time ago, I introduced you to the idea of Linux network namespaces, and provided an overview of some of the commands needed to interact with network namespaces. In this post, I’ll follow up on that post with some additional information on using network namespaces with other types of network interfaces.

Linux 67

Linux Network Virtualization Examples 67

Scott Lowe

DECEMBER 8, 2023

This is the next installation in my semi-regular series that shares links and articles from around the interwebs on various technology areas of interest. Networking The networking section this time around is focused on application level protocols…but hey, they’re still networking protocols, right?

Linux 91

Linux Vmware Resources Network 91

Scott Lowe

AUGUST 30, 2013

Basically, the statement was that it was possible to create do-it-yourself network virtualization. What are the core components of a network virtualization solution? Programmable edge virtual switches in the hypervisor. An encapsulation protocol to isolate logical networks from the physical network.

Virtualization 60

Virtualization Network Linux Open Source 60

Scott Lowe

FEBRUARY 23, 2024

Here’s your weekend reading—a collection of links and articles from around the internet on a variety of data center- and cloud-related topics. Networking The good folks over at Packet Pushers have compiled a list of open source networking projects. I hope you find something useful here!

Construction 75

Construction Open Source Virtualization Cloud 75

Scott Lowe

NOVEMBER 27, 2013

One of the cool things about libvirt is the ability to work with multiple hypervisors and virtualization technologies, including Linux containers using LXC. If you aren’t familiar with Linux containers and LXC, I invite you to have a look at my introductory post on Linux containers and LXC. LTS, as I am.).

Linux 63

Linux Virtualization Network Examples 63

Scott Lowe

SEPTEMBER 11, 2012

This is session COMS002, titled “Next Generation Cloud Infrastructure with Data Plane Virtualization.” Verplanke believes that DPDK (Data Plane Development Kit) and virtualization are key to virtualizing workloads that move around lots and lots of packets, such as firewalls, routers, and other similar functions.

Virtualization 109

Virtualization Intel Cloud Data 109

Scott Lowe

SEPTEMBER 9, 2014

This is a live blog of session DATS004, titled “Bare-Metal, Docker Containers, and Virtualization: The Growing Choices for Cloud Applications.” Weaver includes a discussion of the drivers behind virtualization as well as the pros and cons of virtualization. That, naturally, leads to a discussion of containers.

Virtualization 89

Virtualization Linux Intel Construction 89

Scott Lowe

DECEMBER 2, 2013

I’ve been doing some experimenting with virtual Ethernet (veth) interfaces in Ubuntu as part of the ongoing work with network namespaces, LXC, and related technologies. Because of this, nothing works—I can’t use the veth pair to connect network namespaces, or to connect a Linux bridge to OVS, or anything else.

Virtualization 60

Virtualization Linux Network Storage 60

Scott Lowe

NOVEMBER 25, 2013

In this post, I’m going to provide a brief introduction to working with Linux containers via LXC. Both full machine virtualization and containers have their advantages and disadvantages. Both full machine virtualization and containers have their advantages and disadvantages. Introducing Linux Network Namespaces.

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Linux Virtualization Operating Systems Architecture 85

Network World

APRIL 8, 2019

The resultant virtual image can then be booted and run without anything else being present. To read this article in full, please click here Any drivers, I/O routines and support libraries that are required are included in the single executable. And they will often run 10 to 20 times faster than a container.

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Applications Linux How To Internet 112

Scott Lowe

AUGUST 12, 2022

Well, you’ll have to read the whole article to find out for sure, but I have links to articles on…well, lots of different topics! DNS, BGP, hardware-based security, Kubernetes, Linux—they’re all in here. Networking. Here’s an article on updating running Docker containers using Watchtower.

Linux 90

Linux Storage Virtualization Hardware 90

Scott Lowe

MARCH 10, 2023

Networking Kevin Jin’s post on the APNIC blog about network automation tools is a great read. He discusses Netmiko, NAPALM, and Nornir in some detail, and provides some guidance around which network automation tool may be right for you. Anton Kuliashov writes about why Palark uses Cilium for Kubernetes networking.

IPv6 74

IPv6 Linux Tools Network 74

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. Networking. Michael Kashin shares the journey of containerizing NVIDIA Cumulus Linux.

Linux 90

Linux Load Balancer Malware Virtualization 90

Scott Lowe

MAY 27, 2022

I mean, don’t you want to spend this weekend catching up on some technology-related articles instead of cooking on the grill and gathering with friends and family? Still, for those who need a little technology fix over the weekend, hopefully I’ve included something useful in the list of articles below. Networking.

Virtualization 79

Virtualization Storage Network Programming 79

Linux Academy

FEBRUARY 22, 2019

This article shares some of the key lessons I learnt along the way on such a journey. If we start with Service Endpoints, it helps to understand that this is actually a property of a virtual network. Run the CLI command below: az network vnet subnet update -g vnet1rg --vnet-name vnet1 -n subnet1. Service Endpoints.

Firewall 60

Firewall Storage Network Resources 60

Scott Lowe

OCTOBER 8, 2021

There’s some networking stuff, a few security links, and even a hardware-related article. Networking. As Alec shares in the article, it turns out that adding Tor to a “standard” DoH configuration doesn’t significantly impact performance (as measured by latency). Virtualization.

IPv6 97

IPv6 Storage Hardware Vmware 97

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. Networking. This is a great article on using jq with kubectl.

Linux 60

Linux Load Balancer Malware Virtualization 60

Scott Lowe

OCTOBER 28, 2022

In any case, I’ve spent the last month collecting links to articles and tutorials from around the web on all the various technologies that us IT folk are likely to encounter in our day-to-day adventures. Networking. Ivan Pepelnjak addresses the idea that network automation is harmful. Good stuff! Using Auth0?

Open Source 79

Open Source Apple Vmware Cloud 79

Scott Lowe

JANUARY 27, 2023

I’ve got another collection of links to articles on networking, security, cloud, programming, and career development—hopefully you find something useful! Networking William Morgan’s 2022 service mesh recap captures some of the significant events in service mesh in 2022, although through a Linkerd-colored lens.

Programming 90

Programming Open Source Cloud Devops 90

Scott Lowe

OCTOBER 18, 2012

Over the last few days, I’ve been unsuccessfully trying to get Open vSwitch (OVS) running on Red Hat Enterprise Linux (RHEL) 6.3 (as The rationale behind this is that RHEL/CentOS are the sort of battle-tested, well-supported Linux distributions that enterprises will (and do) deploy in their data centers. as well as CentOS 6.3).

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Enterprise Enterprise Linux Virtualization 109

Scott Lowe

MARCH 2, 2020

It seems like the natural progression of the Tech Short Takes is moving toward monthly articles, since it’s been about a month since my last one. Networking. Said van de Klundert has a post on screen scraping basics for network engineers. Said van de Klundert has a post on screen scraping basics for network engineers.

Linux 60

Linux Windows Hardware Network 60

Scott Lowe

APRIL 29, 2022

My link of links and articles from around the Internet is a bit light on networking and virtualization this time around, but heftier in the security, cloud, and OS/application sections. Networking. Jorge Castro encourages folks to just kill the silly myths (regarding desktop Linux). Virtualization.

Linux 74

Linux Storage Programming Applications 74

Scott Lowe

DECEMBER 3, 2013

In this post I’m going to expand a little bit on using libvirt to connect Linux containers (created using LXC ) to Open vSwitch (OVS). If you aren’t familiar with these projects, I suggest you have a look back at other articles I’ve written about them in the past. This post aims to provide those details.

Linux 63

Linux Virtualization Network Storage 63

Scott Lowe

FEBRUARY 2, 2017

I’ve got a new collection of links and articles from around the Web on various data center-focused technologies. Networking. Michael Kashin has a great article on how Open Virtual Network (OVN, part of the Open vSwitch project) implements virtual networks in OpenStack. Good advice. Servers/Hardware.

Linux 60

Linux Network Virtualization IPv6 60

Scott Lowe

APRIL 15, 2022

Networking. This article contains some good information on IPv6 for those who are just starting to get more familiar with it, although toward the end it turns into a bit of an advertisement. Want to understand kube-proxy , a key part of Kubernetes networking, a bit better? I hope you’re able to find something useful here!

Linux 74

Linux Load Balancer IPv6 Licensing 74

Scott Lowe

DECEMBER 11, 2020

Networking. Arthur Chiao cracks open kube-proxy , a key part of Kubernetes networking, to expose the internals, and along the way exposes readers to a few different technologies. This is a good read if you’re trying to better understand some aspects of Kubernetes networking. Virtualization. Now, on to the content!

Linux 60

Linux Network Tools Hardware 60

Scott Lowe

FEBRUARY 16, 2017

Here’s another collection of links and articles from around the Internet discussing various data center-focused technologies. Networking. The Pivotal Engineering blog has an article that shows how to use BOSH with the vSphere CPI to automate adding servers to an NSX load balancing pool. Welcome to Technology Short Take #78!

Vmware 60

Vmware Linux Storage Load Balancer 60

Scott Lowe

JUNE 19, 2020

Networking. Here’s another useful article from Eric Sloof on bridging between GNS3 and NSX-T. Lots of network engineers are familiar with GNS3, and showing how to integrate it with NSX-T for testing and simulation is, I think, going to be helpful. The inimitable Ivan Pepelnjak provides a primer on Azure networking.

Linux 60

Linux Intel Hardware Storage 60

Scott Lowe

JUNE 24, 2022

Networking. I’d never heard of Pipy before seeing it in this article , but it look like it could be quite useful for a number of use cases. BPFDoor, as it is known, is a passive backdoor that allows threat actors to remotely connect to a Linux shell. Read Dan Moren’s article for details. Virtualization.

Vmware 74

Vmware Linux Storage Virtualization 74

Network World

MARCH 30, 2020

This pre-configured virtual image is available on a CIS Hardened Linux base image and container image. To read this article in full, please click here That’s why we’re excited about the CIS Hardened Images for NGINX on Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP).

Security 74

Security Open Source Web Services Linux 74

Scott Lowe

OCTOBER 23, 2020

My list of links and articles from around the web seems to be a bit heavy on security-related topics this time. Still, there’s a decent collection of networking, cloud computing, and virtualization articles as well as a smattering of other topics for you to peruse. Networking. Virtualization.

Open Source 60

Open Source Vmware Disaster Recovery Linux 60

Scott Lowe

NOVEMBER 25, 2020

Networking. Isovalent—the company behind Cilium, the eBPF-powered networking solution for Kubernetes clusters—just launched with a $29M Series A round of funding. The void left by their decision is rapidly going to be filled by someone else (and based on this article it looks like AWS is gunning for the spot).

Linux 60

Linux Vmware Open Source Examples 60

Scott Lowe

MAY 7, 2021

In this Technology Short Take, I’ve gathered some links for you covering topics like Azure and AWS networking, moving from macOS to Linux (and back again), and more. Networking. ” Specifically, this post talks about Kubernetes networking. Virtualization. Let’s jump right into the content!

Linux 60

Linux Hardware Network Cloud 60

Scott Lowe

APRIL 6, 2017

I have another collection of links, articles, and thoughts about key data center technologies, and hopefully I’ve managed to include something here that will prove useful or thought-provoking. Networking. Further, he follows that up with a post on how automation is more than just configuration management ; it’s about network services.

Vmware 60

Vmware Linux Storage Network 60

Scott Lowe

FEBRUARY 17, 2023

Over the last few weeks, I’ve been collecting articles I wanted to share with readers on major areas in technology: networking, security, storage, virtualization, cloud computing, and OSes/applications. Denis Mulyalin shows how to use Nornir, Salt, and NetBox to template your network tests. As fate (luck?)

Programming 96

Programming Policies Network Cloud 96

Scott Lowe

JANUARY 28, 2016

As usual, I’ve gathered what I hope to be a useful but varied collection of articles and links on key data center technologies. 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.

Vmware 60

Vmware Linux Open Source Devops 60

Scott Lowe

OCTOBER 31, 2012

Open vSwitch (OVS) is a core component in a number of prominent virtualization- and cloud-related products and projects (consider that OpenStack Quantum, CloudStack, XenServer, and Nicira NVP all leverage OVS). Enable IP routing in the Linux kernel. Wrapping libvirt Virtual Networks Around Open vSwitch Fake Bridges.

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Linux Virtualization Network Examples 117