Attack that defeats AMD chip security possible, unlikely

AMD likes to crow about how its Epyc server processors can encrypt the content of virtal machines while they’re in operation so they are secure and isolated, preventing other VMs on the processor from accessing the encrypted contents.Well, researchers from the Technical University of Berlin have found a weakness in that feature, known as Secure Encrypted Virtualization (SEV), and published a theoretical attack that defeats the protection.The paper ”One Glitch to Rule Them All: Fault Injection Attacks Against AMD’s Secure Encrypted Virtualization” details how the researchers succeeded in mounting a voltage fault-injection attack.To read this article in full, please click here

Announcing Tenant Control in Cloudflare Gateway

Announcing Tenant Control in Cloudflare Gateway
Announcing Tenant Control in Cloudflare Gateway

The tools we use at work are starting to look like the apps we use in our personal lives. We send emails for our jobs using Google Workspace and respond to personal notes in Gmail. We download PDFs from our team’s Dropbox and then upload images to our personal account. This can lead to confusion and mistakes—made worse by remote work when we forget to log off for the day.

Today, we’re excited to announce Tenant Control in Cloudflare Gateway, a new feature that helps keep our work at work. Organizations can deploy Cloudflare Gateway to their corporate devices and apply rules ensuring that employees can only log in to the corporate version of the tools they need. Now, teams can prevent users from logging in to the wrong instance of popular applications. What’s more, they can make sure corporate data stays within corporate accounts.

Controlling the application, alone, isn’t sufficient

Cloudflare Gateway provides security from threats on the Internet by sending all traffic leaving a device to Cloudflare’s network where it can be filtered. Organizations send traffic to Cloudflare by deploying the WARP agent, a WireGuard-based client built on feedback from our popular consumer app.

Announcing Tenant Control in Cloudflare Gateway

Cloudflare Gateway can be Continue reading

Running Code

There was a discussion in a working group session at the recent IETF 111 meeting over a proposal that the working group should require at least two implementations of a draft before the working group would consider the document ready. What's going on here?

kOps adds support for Calico’s eBPF data plane

Kubernetes operations (kOps) is one of the official Kubernetes (K8s) projects. The kOps project allows for rapid deployment of production-grade K8s clusters in multiple cloud platforms. By leveraging yaml manifests, kOps delivers a familiar experience to users who have worked with kubectl. Similar to K8s clusters in popular cloud platforms, kOps helps set up self-managed clusters to easily deliver high availability. Given its ease of use, it is a very popular choice when users want to deploy self-hosted Kubernetes clusters.

With the recent release of kOps (v1.19), support for the Calico eBPF data plane was added to the utility. In addition to the above-mentioned features, the latest kOps update offers an effortless way to autodeploy K8s clusters utilizing Project Calico for networking and the Calico eBPF data plane. Calico eBPF data plane implementation replaces kube-proxy and delivers equivalent functionality; it also leverages the most optimal datapath for traffic. These changes deliver a network performance boost and source IP preservation to your cluster.

In this blog post, we will showcase the steps required to deploy a cluster that utilizes these newly available features.

What is eBPF?

eBPF is a virtual machine embedded within the Linux kernel. Continue reading

With AMX, Intel Adds AI/ML Sparkle to Sapphire Rapids

All processor designs are the result of a delicate balancing act, perhaps most touchy in the case of a high performance CPU that needs to be all things to users, whether they’re running large HPC simulations, handling transaction processing, dispatching training runs or whipping out inference results. …

With AMX, Intel Adds AI/ML Sparkle to Sapphire Rapids was written by Nicole Hemsoth at The Next Platform.

Cisco: Product sales jump, so do some prices

Cisco’s 4Q and year-end financial reports highlight growth in many categories that are important to enterprise customers including wireless, campus switching, routing and security products.CEO Chuck Robbins said that the company’s fourth quarter boasts the strongest product-order growth rate the company has seen in over a decade, citing a 30% product order growth year on year, and more than 17% order growth versus pre-COVID Q4 fiscal 19 product bookings.The 10 most powerful companies in enterprise networking 2021 “In Q4, we saw double-digit revenue growth in campus switching, Catalyst 9000, high-end routing, wireless, and in our Zero Trust solutions, along with strength in our security endpoint portfolio. We also had a very strong adoption of our Acacia optical solutions,” Robbins said.To read this article in full, please click here

Building a Pet Cam using a Raspberry Pi, Cloudflare Tunnels and Teams

Building a Pet Cam using a Raspberry Pi, Cloudflare Tunnels and Teams
Building a Pet Cam using a Raspberry Pi, Cloudflare Tunnels and Teams

I adopted Ziggy in late 2020. It took me quite a while to get used to his routine and mix it with mine. He consistently jumped on the kitchen counter in search of food, albeit only when no one was around. And I only found out when he tossed the ceramic butter box. It shattered and made a loud bang in the late hours of the night. Thankfully, no one was asleep yet.

This got me thinking that I should keep an eye on his mischievous behaviour, even when I'm not physically at home. I briefly considered buying a pet cam, but I remembered I had bought a Raspberry Pi a few months before. It was hardly being used, and it had a case (like this) allowing a camera module to be added. I hadn’t found a use for the camera module — until now.

This was a perfect weekend project: I would set up my own pet cam, connect it to the Internet, and make it available for me to check from anywhere in the world. I also wanted to ensure that only I could access it and that it had some easy way to login, possibly using Continue reading

Cloudflare thwarts 17.2M rps DDoS attack — the largest ever reported

Cloudflare thwarts 17.2M rps DDoS attack — the largest ever reported

Earlier this summer, Cloudflare’s autonomous edge DDoS protection systems automatically detected and mitigated a 17.2 million request-per-second (rps) DDoS attack, an attack almost three times larger than any previous one that we're aware of. For perspective on how large this attack was: Cloudflare serves over 25 million HTTP requests per second on average. This refers to the average rate of legitimate traffic in 2021 Q2. So peaking at 17.2 million rps, this attack reached 68% of our Q2 average rps rate of legitimate HTTP traffic.

Cloudflare thwarts 17.2M rps DDoS attack — the largest ever reported
Comparison graph of Cloudflare’s average request per second rate versus the DDoS attack

Automated DDoS mitigation with Cloudflare’s autonomous edge

This attack, along with the additional attacks provided in the next sections, were automatically detected and mitigated by our autonomous edge DDoS protection systems. The system is powered by our very own denial of service daemon (dosd). Dosd is a home-grown software-defined daemon. A unique dosd instance runs in every server in each one of our data centers around the world. Each dosd instance independently analyzes traffic samples out-of-path. Analyzing traffic out-of-path allows us to scan asynchronously for DDoS attacks without causing latency and impacting performance. DDoS findings are also shared between the Continue reading

Top SD-WAN vendors and how they got there

Even in the midst of the pandemic, revenues from SD-WAN grew 18.5% from 2019 to 2020, and is expected to grow another 26.5% this year, according to IDC.In the research firm’s forthcoming Worldwide SD-WAN Infrastructure Forecast, IDC projects compound annual growth of 18.9% through 2025, when total revenues will top $7 billion.SD-WAN buyers guide: Key questions to ask vendors “We expected to see a significant drop due to the pandemic, dragging the growth rate down to at least single digits,” said Brandon Butler, Senior Research Analyst, Enterprise Networks at IDC, but the rise of cloud computing and the need to connect enterprises to cloud-based resources including video conferencing applications offset the slowdown caused by a newly remote workforce.  To read this article in full, please click here

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