Arista Bakes AI Into WiFi Software
Cognitive WiFi provides visibility into WiFi users’ experience and initiates root cause analysis...
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Deploying IPv6 in Public Clouds is Easy
One of the hands-on exercises in our Networking in Public Cloud Deployments online course asks the attendees to deploy a full-blown virtual networking solution with a front-end (web) server in a public subnet, and back-end (database) server in a private subnet.
The next (optional) exercise asks them to add IPv6 to the mix for a full-blown dual-stack deployment.
On Duplicates
Packet duplication wastes bandwidth and can lead to significant network performance degradation or even outages.
In multicast routing, packets are replicated by the network, so there is always a fundamental risk of duplicate traffic. Special safeguards exist to avoid …
On this 50th Earth Day, We Are Using The Internet To Change The World
50 years ago when the first Earth Day happened, the networks that would later form the Internet were only beginning.
20 years later, when Earth Day 1990 turned the celebration into a global event, the World-Wide Web existed only as a single website in Switzerland.
Today, the Internet is our lifeline. In a world locked down by coronavirus, the Internet is how we connect. It is how we communicate, collaborate, and create together. It is how we work and how we play. And on this Earth Day 2020, we will use the Internet to celebrate the 50th anniversary.
Each and every day, we are using the Internet to respond to climate change and other environmental issues:
- Scientists are collaborating and sharing their knowledge. They are finding new solutions and creating new programs.
- Projects are crowdsourcing vast amounts of data from regular people around the world (ex. Earth Challenge 2020)
- We are sharing ideas and learning from each other.
- Policy makers are learning what works in other regions.
- We are avoiding unnecessary travel and reducing our carbon footprint.
- Activists are joining in global movements.
- We are seeing that what affects someone in one part of the world may affect us Continue reading
Coding Packets the 11ty Edition
The story of how and why I migrated codingpackets.com to 11ty.Coding Packets the 11ty Edition
Last year I migrated codingpackets.com to a rails stack hosted on a digital ocean droplet. You can read about that here. I really love rails and was completely happy with that choice however, I am tired of managing infrastructure for what is essentially a static site. Therefore I decided...T-Systems Taps Juniper for Managed SD-WAN
Juniper claims its technology will provide customers with a cost-effective alternative to MPLS,...
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Daily Roundup: Cisco, Google SD-WAN Soars
Cisco, Google drove SD-WAN to the cloud; Commvault sued competitors Cohesity and Rubrik; and IBM...
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Pulumi Supercharges Its Code Bridge
The vendor's 2.0 update includes testing and infrastructure provisioning capabilities that its CEO...
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Designing On-Prem Kubernetes Networks for High Availability
Designing and maintaining networks is hard. When deploying Kubernetes in your on-prem data center, you will need to answer a basic question: Should it be an overlay network on top of an existing network, or should it be part of an existing network? The Networking options table provides guidelines to choose the right type of networking based on various factors. If you decide to use native peering (pre-dominant option for on-prem), you will have to configure the network to ensure availability in the event of network outage (ex. Cable disconnected, TOR switch failure etc.). We cover a typical L3 highly-available network design in this post.
A cluster spans multiple racks. In an L3 deployment, these racks have different CIDR ranges. So the nodes in different racks should be able to talk to each other. Referring to the diagram below, that traffic goes through the network fabric. If you want to build out such a lab for your own learning, here is the example.
If you have a leaf-spine fabric with a single TOR (top-of-rack, or leaf switch), then that TOR becomes a point of failure for the entire rack. If all the master nodes are on the same Continue reading
SAP Axes 2-Headed CEO Structure
Long-time executive and short-time co-CEO Jennifer Morgan is set to leave the company on April 30....
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IBM Capped by COVID-19 Pandemic, Red Hat Helps
IBM CEO Arvind Krishna told financial analysts that “in the last few weeks we faced a shift in...
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Dell Combats COVID-19 With $9B Financing
The Payment Flexibility Program offers customers 0% interest financing with no down payment and up...
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Commvault Sues Cohesity, Rubrik for Patent Infringement
“The unauthorized use of our patented technology by Rubrik and Cohesity forces us to compete...
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Full Stack Journey 041: Talos Builds An Open-Source OS For Kubernetes
Today's Full Stack Journey examines the Talos open source project, which is aimed at building a fit-for-purpose OS designed expressly for running Kubernetes. My guests are Tim Gerla and Andrew Rynhard of Talos Systems. We discuss the goals of this project, the problems they aim to solve, and more.
The post Full Stack Journey 041: Talos Builds An Open-Source OS For Kubernetes appeared first on Packet Pushers.
Full Stack Journey 041: Talos Builds An Open-Source OS For Kubernetes
Today's Full Stack Journey examines the Talos open source project, which is aimed at building a fit-for-purpose OS designed expressly for running Kubernetes. My guests are Tim Gerla and Andrew Rynhard of Talos Systems. We discuss the goals of this project, the problems they aim to solve, and more.
Thought for My Day: Personal Profit by Not Travelling to An Office
I earned about 5% by not working in an office
The post Thought for My Day: Personal Profit by Not Travelling to An Office appeared first on EtherealMind.
Deploying Gateway using a Raspberry Pi, DNS over HTTPS and Pi-hole
Like many who are able, I am working remotely and in this post, I describe some of the ways to deploy Cloudflare Gateway directly from your home. Gateway’s DNS filtering protects networks from malware, phishing, ransomware and other security threats. It’s not only for corporate environments - it can be deployed on your browser or laptop to protect your computer or your home WiFi. Below you will learn how to deploy Gateway, including, but not limited to, DNS over HTTPS (DoH) using a Raspberry Pi, Pi-hole and DNSCrypt.
We recently launched Cloudflare Gateway and shortly thereafter, offered it for free until at least September to any company in need. Cloudflare leadership asked the global Solutions Engineering (SE) team, amongst others, to assist with the incoming onboarding calls. As an SE at Cloudflare, our role is to learn new products, such as Gateway, to educate, and to ensure the success of our prospects and customers. We talk to our customers daily, understand the challenges they face and consult on best practices. We were ready to help!
One way we stay on top of all the services that Cloudflare provides, is by using them ourselves. In this blog, I'll talk about Continue reading