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Nutanix Scales Out on Objects Update

Nutanix updated its object storage platform to bring “simplicity” and “performance” to big...

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Juniper, Cox Pump $216M Into StackPath Coffers

In addition to leading the Series B, Juniper and Cox are also StackPath customers although they use...

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SoftIron Bets on SONiC With Hyperscale Switches

"Networking is the most neglected integrated thing that exists in IT right now," says SoftIron CEO...

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Day Two Cloud 040: Building And Operating A Private Cloud

Today's Day Two Cloud delves into how and why to build a private cloud that functions as well as a public cloud. We examine the design and operational challenges of assembling and running cloud infrastructure on premises. Our guest is Bryan Sullins, Senior Systems Engineer for a large retailer.

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Day Two Cloud 040: Building And Operating A Private Cloud

Today's Day Two Cloud delves into how and why to build a private cloud that functions as well as a public cloud. We examine the design and operational challenges of assembling and running cloud infrastructure on premises. Our guest is Bryan Sullins, Senior Systems Engineer for a large retailer.

The post Day Two Cloud 040: Building And Operating A Private Cloud appeared first on Packet Pushers.

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A New Path For Certifications

Cisco leads the industry when it comes to respected and valued IT infrastructure certification paths and last month Cisco made some significant changes to the way they do certifications. In today’s episode we discuss some of these changes and what the implications are for those of us pursuing new Cisco certifications or maintaining the certifications we already hold.  

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Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

The post A New Path For Certifications appeared first on Network Collective.

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The problem with thread^W event loops

Back when Cloudflare was created, over 10 years ago now, the dominant HTTP server used to power websites was Apache httpd. However, we decided to build our infrastructure using the then relatively new NGINX server.

There are many differences between the two, but crucially for us, the event loop architecture of NGINX was the key differentiator. In a nutshell, event loops work around the need to have one thread or process per connection by coalescing many of them in a single process, this reduces the need for expensive context switching from the operating system and also keeps the memory usage predictable. This is done by processing each connection until it wants to do some I/O, at that point, the said connection is queued until the I/O task is complete. During that time the event loop is available to process other in-flight connections, accept new clients, and the like. The loop uses a multiplexing system call like epoll (or kqueue) to be notified whenever an I/O task is complete among all the running connections.

In this article we will see that despite its advantages, event loop models also have their limits and falling back to good old threaded architecture is sometimes Continue reading

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Solving “NAME is not exported by MODULE” When Using Local NPM Dependencies

This blog post will focus on a topic I don’t usually dive into (Javascript and related tooling), but I felt like others might benefit from the solution to a problem I encountered while doing local development for antidote-web, the web front-end that powers NRE Labs. A quick aside on the architecture for the front-end code for the Antidote platform - the antidote-web project is the lynchpin for everything. It’s where the general structure of the front-end app is managed.

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Google Cloud Next Now Postponed Due to COVID-19

The company's headquarters in Mountain View, California, are under a "shelter in place" ordinance...

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How to Efficiently Detect Domain Generation Algorithms (DGA) in Kubernetes with Calico Enterprise

Introduction

2020 is predicted to be an exciting year with more organizations adopting Kubernetes than ever before. As critical workloads with sensitive data migrate to the cloud, we can expect to encounter various Advanced Persistent Threats (APT) targeting that environment.

Domain Generation Algorithm (DGA) – What is It?

DGA is a technique that fuels malware attacks. DGA by itself can’t harm you. But it’s a proven technique that enables modern malware to evade security products and counter-measures. Attackers use DGA so they can quickly switch the command-and-control (also called C2 or C&C) servers that they’re using for malware attacks. Security software vendors act quickly to block and take down malicious domains hard-coded in malware. So, attackers used DGA specifically to counter these actions. Now DGA has become one of the top phone-home mechanisms for malware authors to reach C2 servers. This poses a significant threat to cloud security.

Mitre defines DGA as “The use of algorithms in malware to periodically generate a large number of domain names which function as rendezvous points for malware command and control servers”. Let’s examine this definition more closely. DGA at its core generates domains by concatenating pseudo-random strings and a TLD (e.g. .com, . Continue reading

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Daily Roundup: Remote Workers Strain Services

Remote worker influx stifled services; Cisco, Hitachi sliced jobs; and Red Hat, Intel bridged the...

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A new era for Cumulus in the Cloud

When we launched Cumulus in the Cloud (CitC) over two years ago, we saw it as a way for our customer base to test out Cumulus Linux in a safe sandboxed environment. Looking back, September 2017 feels like an eternity ago.

Since then, CitC has become a place where we’ve been able to roll out new functionality and solutions to customers and Cumulus-curious alike — and we’ve done some really interesting things (some of our favs include integrating it with an Openstack demo and Mesos demo). It’s pretty much become a Cumulus technology playground.

As our CitC offering has evolved, we’ve also taken stock of the requirements from our customers and realized the direction we want to take CitC. So where is it heading? We’re excited to share that with the launch of our production-ready automation solution last week, CitC will have a new user experience and user interface.

Out with the old:

In with the new:

This redesigned UI comes with some really great enhancements:

• Auto-deployed production ready demos

• Customized external connectivity to oob-mgmt-server to run user customized applications

• Default lifetime increased to 12 hours

• NetQ native integration within the demo

• Ability to store and wake up Continue reading

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Coronavirus: What companies are ready for our new reality?

One class of companies is already equipped to work in a fully distributed employee model. Another going to have a difficult time adapting to most employees having to work from home. Some won’t survive if this lasts more than a few weeks.

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Infinera Pushes 800G Further in Latest Trial

The trial marks the successful use of a transceiver that's headline data rate can be achieved over...

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Cisco, Hitachi Vantara Slicing Hundreds of Silicon Valley Jobs

The job cuts include nearly 400 Cisco employees and 151 Hitachi Vantara employees.

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Liqid Composes Inspur OCP Racks, Western Digital Storage

The OCP-compliant Inspur system includes Nvidia GPUs and enables composability via PCIe...

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BiB089 Why Coronavirus Pandemic Could Ignite Cloud Repatriation

Could COVID19 lead to walk back from public cloud ? A discussion with Mike Dvorkin.

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BiB089 Why Coronavirus Pandemic Could Ignite Cloud Repatriation

Could COVID19 lead to walk back from public cloud ? A discussion with Mike Dvorkin.

The post BiB089 Why Coronavirus Pandemic Could Ignite Cloud Repatriation appeared first on Packet Pushers.

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Beyond Kube-Proxy: Project Calico Harnesses eBPF for a Faster Data Plane

Thanks to the power of the newly-introduced Calico network management software with a new data plane mode, one that can speed pod-to-pod data communication and eliminate the dependency on Kubernetes’ kube-proxy for traffic management. Tigera had started releasing work with eBPF almost a year ago, but this is the first release of Calico that fully harnesses the power of the new Linux kernel technology, Tigera co-founder and chief technology officer, said. “We wanted to derive what we were doing from fundamentals, to be confident we were building the right thing for users,” said scale Continue reading

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Telnyx api/sms saves my plants! Every single time.

When its a holiday, I do some house-hold farming, mostly into Hydroponics which is based on water and associated nutrients and does not require soil as a medium.

Let me show an example.

As you can see, Plant drinks up water, and the one which you are seeing is lemon plant from its seed stage, Monitoring water level is extremely important and for me there are many more in home so cant be keeping track of everything.

So sensor gets the data, Raspberry Pi talks to AWS IOT securely since Microcontrollers are still a pain to handle SSL and Rpi makes it easy and after processing MQTT message AWS IOT will process based on the Rules, in our case if the treshold is below 500 then plant is drying up.

Why Not Inbuilt SES/SMS with AWS ?

SES works great but I check my emails only once in two days and there is no way to alert based on the email, SMS I wanted to used multiple number pool (thinking to expand) and Cost with Telnyx is Really Amazing to do any Communication services

I have tried other vendors and results are not great either my carrier has some integration problems Continue reading