Vox

JANUARY 29, 2021

Angry CEOs, operating system updates, and maybe even a lawsuit — the feud continues. Apple’s tracking-optional mobile operating system update is coming to iPhones this spring, and the new privacy-preserving features will give users the ability to opt out of being followed around the internet via trackers in their apps.

Apple 105

Apple Operating Systems Mobile Open Source 105

Scott Lowe

OCTOBER 23, 2020

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. ” Ivan Pepelnjak attempts to answer the question, “How much do I need to know about Linux networking?” Servers/Hardware.

Open Source 60

Open Source Vmware Disaster Recovery Linux 60

Scott Lowe

SEPTEMBER 8, 2023

Networking Brent Salisbury shares some code intended to help you “ChatGPT your project documentation.” 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. What about preventing it?

Vmware 74

Vmware Network Hardware Cloud 74

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. Servers/Hardware. I saw this blog post about Curiefense , an open source Envoy extension to add WAF (web application firewall) functionality to Envoy.

Open Source 105

Open Source Load Balancer WAN Architecture 105

Scott Lowe

DECEMBER 31, 2021

Networking. Ivan Pepelnjak has a post on running network automation tools in a container. Tom Hollingsworth likens networking disaggregation to “cutting the cord” and switching away from cable. Tom Hollingsworth likens networking disaggregation to “cutting the cord” and switching away from cable.

Open Source 94

Open Source Virtualization Applications Security 94

Network World

APRIL 5, 2017

A critical vulnerability in the widely used Xen hypervisor allows attackers to break out of a guest operating system running inside a virtual machine and access the host system's entire memory. The new vulnerability affects Xen 4.8.x, x, and 4.4.x x and has existed in the Xen code base for over four years.

Virtualization 60

Virtualization Operating Systems Open Source Data Center 60

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

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. Networking. The first is a post on Cilium and F5 load balancer integration , while the second discusses implementing Kubernetes network policies with Cilium and Linkerd.

Vmware 60

Vmware Hardware Load Balancer Apple 60

Scott Lowe

OCTOBER 5, 2018

Networking. Brian Boucheron provides a great article on how to inspect and debug Kubernetes network primitives. Servers/Hardware. The big news in the hardware space recently was the article regarding the purported Chinese hardware supply chain attack. Operating Systems/Applications. Probably not.

Hardware 60

Hardware Open Source Vmware Linux 60

Cloud Musings

MARCH 9, 2018

According to the former Equifax CEO’s testimony to Congress , one of the primary causes of this now infamous data breach was the company’s failure to patch a critical vulnerability in the open source Apache Struts Web application framework. Equifax also waited a week to scan its network for apps that remained vulnerable. [1]

Operating Systems 79

Operating Systems Enterprise Enterprise Virtualization 79

Scott Lowe

MAY 27, 2022

Networking. network virtualization). Is the relationship between network virtualization and service mesh closer than some folks might wish to admit? Servers/Hardware. now has a follow-up exploit that exposes Aruba and Avaya network switches to remote code execution. Operating Systems/Applications.

Virtualization 79

Virtualization Storage Programming Network 79

Scott Lowe

SEPTEMBER 24, 2021

Well, let’s see…stuff on Envoy, network automation, network designs, M1 chips (and potential open source variants!), Networking. Russ White shares some thoughts on the collapsed spine network design. Justin Pietsch talks about simplifying networks and the resulting engineering trade-offs.

Open Source 60

Open Source Cloud Network Storage 60

Scott Lowe

JANUARY 15, 2021

Networking. Servers/Hardware. The popular open source cryptography library known as Bouncy Castle has uncovered a severe authentication bypass vulnerability. Heidi Howard and Ittai Abraham illustrate some of the challenges of the Raft consensus protocol when there is a network partition. Compute safely.

Linux 60

Linux Firewall Open Source Vmware 60

CIO Business Intelligence

JUNE 15, 2022

Public cloud providers such as AWS, Google, and Microsoft Azure publish shared responsibility models that push security of the data, platform, applications, operating system, network and firewall configuration, and server-side encryption, to the customer. Monitored your network environment for ongoing threats?

Cloud 131

Cloud Open Source Applications Storage 131

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). Servers/Hardware. Seriously.). I just came across this relatively-new EKS News site.

Storage 79

Storage Hardware Policies Open Source 79

Scott Lowe

MARCH 1, 2019

Networking. Daniel Dib has a great article on how network engineers need to evolve. The network isn’t going away, it’s just changing. I referenced part 1 of Ajay Chenampara’s series on the Ansible network-engine command parser back in Technology Short Take 102 (July of last year). Servers/Hardware.

Operating Systems 60

Operating Systems Authentication Network Open Source 60

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. Servers/Hardware. I saw this blog post about Curiefense , an open source Envoy extension to add WAF (web application firewall) functionality to Envoy.

Open Source 60

Open Source Load Balancer WAN Architecture 60

ForAllSecure

APRIL 19, 2023

It’s time to evolve beyond the UNIX operating system. So while I was editing this podcast on self-healing operating systems, I was reminded of an article that I never finished for Fobes.com. It’s a radical rethinking of how we even view our current choices of UNIX-derived operating systems.

Operating Systems 40

Operating Systems System Open Source Applications 40

Scott Lowe

APRIL 15, 2022

Networking. Want to understand kube-proxy , a key part of Kubernetes networking, a bit better? 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.

Linux 74

Linux Load Balancer IPv6 Licensing 74

Scott Lowe

APRIL 3, 2016

Networking. Phil Gervasi has an article on fate sharing in the network core , where he discusses some of the advantages—and disadvantages—of centralizing the control plane in network designs. The examples Phil uses include StackWise, Virtual Switching System, and Virtual Port Channels. Servers/Hardware. Good stuff.

Vmware 60

Vmware Network Linux Hardware 60

Scott Lowe

DECEMBER 27, 2019

Networking. Servers/Hardware. Ahmet Alp Balkan talks about how the Knative Serving component addresses some key networking challenges within Kubernetes. Geert Baeke walks readers through deploying AKS with Nginx, External DNS, the Helm Operator, and Flux (all using an Azure DevOps pipeline, if I read the article correctly).

Open Source 60

Open Source Vmware Authentication Storage 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). Servers/Hardware.

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). Servers/Hardware.

Linux 60

Linux Open Source Network Vmware 60

Scott Lowe

FEBRUARY 10, 2015

This time around, the content is a bit heavier on cloud management and applications/operating systems, but still lots of good content all the way around (I hope, anyway). Networking. Matt Oswalt recently wrapped up his 3-part “DevOps for Networking” series. tech preview of virtual networks for Docker.

Open Source 60

Open Source Vmware Network IBM 60

ForAllSecure

FEBRUARY 9, 2022

Vulnerability scanning is the process of identifying security vulnerabilities in systems or networks. These vulnerabilities can be exploited by attackers to gain access to sensitive data or systems. Internal vulnerability scans are performed on systems and networks that are owned and managed by the organization.

Authentication 40

Authentication Applications Network Operating Systems 40

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. Open source has become so critical to so many aspects of our computing infrastructure. Uh oh… more hardware exploits.

Linux 60

Linux Vmware Open Source 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

Vox

APRIL 21, 2021

Tile says that Apple is not only creating hardware that’s similar to its own, but is also designing Apple software in a way that favors its own products and disadvantages Tile’s products. “We Tile has long argued that Apple unfairly designed its mobile operating system, iOS, and the Find My app to favor its own location-tracking tools.

Apple 69

Apple Open Source System Operating Systems 69

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. Milind Gunjan shares some tips for troubleshooting Linux bridged networking on a KVM host.

Open Source 60

Open Source Tools Policies Cloud 60

Scott Lowe

JANUARY 21, 2022

Networking. Servers/Hardware. The story of a developer deliberately polluting their open source projects—as outlined here for the “colors.js” Operating Systems/Applications. And now for the content! Mike Fiedler explores differences in ways for container-to-container communication to occur.

Load Balancer 90

Load Balancer Linux Intel Cloud 90

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

Vmware 60

Vmware Linux Open Source Devops 60

Kitaboo

MAY 19, 2020

The Open Source Foundation aims to develop technology for expediting the adoption of ePUB3 and the Open Web Platform by the Digital Publishing Industry. It strives to deliver leading-edge functionality that is fully specified, free, open, and interoperable. x, audiobooks, Web Pub, and image-based books such as Manga.

Architecture 78

Architecture eBook Open Source Applications 78

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

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). Servers/Hardware. Operating Systems/Applications.

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. Servers/Hardware.

Vmware 60

Vmware Open Source Intel Applications 60

Scott Lowe

JANUARY 14, 2016

Networking. 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). Using Python and Netmiko for network automation is the topic of this post by Colin McAlister.

Vmware 60

Vmware Devops Storage Linux 60

Phil Windley

DECEMBER 28, 2020

Zittrain masterfully describes the extreme generativity of the internet and its attached PCs, explains why openness of both the network and the attached computers is so important, discusses threats to the generativity nature of the internet, and proposes ways that the internet can remain generative while addressing some of those threats.

Internet 135

Internet Network Architecture Security 135