IBM continued to reshape the mainframe with an eye toward further integrating it within hybrid clouds and securing Linux-based workloads.On the hardware side, IBM rolled out two entry-level, 19” single-frame, air-cooled platforms, the z15 Model T02 and LinuxONE III Model LT2. The new machines are extensions of the IBM z15 family that Big Blue rolled out in September of last year. To read this article in full, please click here
Many enterprises don’t think much about where their obsolete IT gear winds up, but it’s possible to be green-minded, not bust the budget, and even benefit a little from proper disposal. Here is how.Go back to where you bought
The first option to consider is returning the equipment the vendor or reseller you bought it from, says Susan Middleton, research director, financing strategies at IDC. “Every year we ask customers, ‘How do you handle end-of-lease?’ Overwhelmingly, they return to vendor or partner who are better equipped to handle recycling,” she says.[Get regularly scheduled insights by signing up for Network World newsletters.]
Vendors often give a fair-market buyout for the devices that can go toward new products, Middleton says. “The big players like IBM and HPE do a great job because they can clean them up and resell them, and the facilities to do that are pretty big,” she says.To read this article in full, please click here
We recently migrated hundreds of ZooKeeper instances from individual server instances to Kubernetes without downtime. Our approach used powerful Kubernetes features like endpoints to ease the process, so we’re sharing the high level outline of the approach for anyone who wants to follow in our footsteps. See the end for important networking prerequisites.
eBPF is a hot topic right now; most of the infrastructure-focused conferences and events have included talks on eBPF over the past year, which is creating a lot of interest in the technology.
You might be wondering what eBPF is. eBPF stands for “extended Berkeley Packet Filter” which is a feature in modern Linux kernels that allows you to write mini-programs that are attached to low-level hooks in the Linux kernel, that execute based on certain events (e.g. filtering network traffic). While Calico is primarily focused on networking and security use cases, eBPF is a broad technology that applies to many other use cases as well.
We’ve always been tracking eBPF and it’s potential to enhance Calico, however, most users have not been ready for it. Improving on Calico’s already excellent dataplane using eBPF requires the latest Linux kernels, that are not always available to our enterprise customers that require a vendor-supported Linux distribution to run in production. Nevertheless, we decided to add an eBPF dataplane to support those users that are able to use the latest Linux kernels, as well as provide a future-proofed path for those who will wait until their vendor-supported Linux distributions will support the Continue reading
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Learn to balance architecture trade-offs and design scalable enterprise-level software. Check out Educative.io's bestselling new 4-course learning track: Scalability and Continue reading
With so many countries in lockdown and so many people working (and learning) from home, online usage has risen significantly but so far, the internet is holding up well.
Internet traffic is generally to 25% to 30% higher than usual, and what we do online is also changing. Internet usage often increases goes up in a typical month; for Akamai that’s usually 3% growth, in the last month it’s been 30%. In March 2019 their peak traffic was 82Tbps; this March it was 167Tbps and the sustained daily traffic rate is higher than last year’s peak for March. Internet exchanges in Amsterdam, Frankfurt and London saw 10-20% increases in traffic around March 9th, which the exchange in Milan had a 40% increase the day Italy was quarantined.
Disturbingly, attacks are up too: Akamai Cloudflare tracks varies by city; it’s only up 11% in Berlin and 22% in London between early January and late March (and 17% up for the UK as whole), but it’s grown by 40% in New York and 48% in San Francisco and Silicon Continue reading
One of the most common challenges we hear from developers is how getting started with containers can sometimes feel daunting. It’s one of the needs Docker is focusing on in its commitment to developers and dev teams. Our two aims: teach developers and help accelerate their onboarding.
With the benefits of Docker so appealing, many developers are eager to get something up and running quickly. That’s why, with Docker Desktop Edge 2.2.3 Release, we have launched a brand new “Quick Start” guide which displays after first installation and shows users the Docker basics: how to quicklyclone, build, run, and share an image to Docker Hub directly in Docker Desktop.
To keep everything in one place, we’ve crafted the guide with a built-in terminal so that you can paste commands directly — or type them out yourself. It’s a light-touch and integrated way to get something up and running.
Continue learning in an in-depth tutorial
You might expect that this new container you’ve spun up would be just a run-of-the-mill “hello world”. Instead, we’re providing you with a resource for further hands-on learning that you can do at your own pace.
Today, we’re proud to announce another milestone: the number of network
operators that commit to the Mutually Agreed Norms for Routing Security (MANRS)
has surpassed 300.
The current number of network operator program participants stands at 322. These Internet Service Providers (ISPs) joined the initiative by showing their conformance with the actions to improve the resilience and security of the Internet’s routing infrastructure.
Launched in 2014 with a group of nine operators, the number of MANRS participants reached 100 in 2018 and has risen rapidly in the last two years, with 156 joining in 2019 alone, and 45 so far in 2020.
This includes operators in more than 60 countries across all continents; with Brazil leading the way with nearly 70 MANRS participants, followed by the US with nearly 50.
According to BGPStream, the number of reported routing incidents was on the decrease from 2017 to 2019 (see chart below), while the number of MANRS participants grew in the period. While this does not mean one caused the other, a correlation between the two can be observed.
The MANRS community has grown rapidly through its other programs, too. In 2018, the initiative expanded to include Internet Exchange Providers (IXPs), which Continue reading
We announced support for HTTP/3, the successor to HTTP/2 during Cloudflare’s birthday week last year. Our goal is and has always been to help build a better Internet. Collaborating on standards is a big part of that, and we're very fortunate to do that here.
Even though HTTP/3 is still in draft status, we've seen a lot of interest from our users. So far, over 113,000 zones have activated HTTP/3 and, if you are using an experimental browser those zones can be accessed using the new protocol! It's been great seeing so many people enable HTTP/3: having real websites accessible through HTTP/3 means browsers have more diverse properties to test against.
When we launched support for HTTP/3, we did so in partnership with Google, who simultaneously launched experimental support in Google Chrome. Since then, we've seen more browsers add experimental support: Firefox to their nightly builds, other Chromium-based browsers such as Opera and Microsoft Edge through the underlying Chrome browser engine, and Safari via their technology preview. We closely follow these developments and partner wherever we can help; having a large network with many sites that have HTTP/3 enabled gives browser implementers an excellent testbed against which to Continue reading