Archive

Category Archives for "Networking"

KVM Host High CPU Fix

I run my labs on an Ubuntu 1604 host using KVM for the hypervisor and some of the network VM images (Cisco CRS1000v, Juniper vMX, etc..) run with very high CPU. A recent thread on Twitter helped me to find a solution to this problem so I will outline it here as it may be helpful for others. ...

Newest OpenStack release comes with bare-metal installs in mind

The OpenStack Foundation has announced the general availability of the 18th iteration of its cloud platform, called OpenStack Rocky. The major new functionalities to the platform are faster upgrades and enhanced support for bare metal infrastructure.Bare-metal cloud is a term for cloud services that come with zero software. When you rent an instance on Amazon S3 or Microsoft Azure, you get a virtualized environment that is run on a hypervisor and shared with another, unknown user. This often causes performance issues, since you never know what kind of neighbor you will get each time.To read this article in full, please click here

Newest OpenStack release comes with bare-metal installs in mind

The OpenStack Foundation has announced the general availability of the 18th iteration of its cloud platform, called OpenStack Rocky. The major new functionalities to the platform are faster upgrades and enhanced support for bare metal infrastructure.Bare-metal cloud is a term for cloud services that come with zero software. When you rent an instance on Amazon S3 or Microsoft Azure, you get a virtualized environment that is run on a hypervisor and shared with another, unknown user. This often causes performance issues, since you never know what kind of neighbor you will get each time.To read this article in full, please click here

Weekend Reads 090718

Did the passage of gDPR impact the amount of spam on the ‘net, or not? It depends on who you ask.

The folks at the Recorded Future blog examined the volume of spam and the number of registrations for domains used in phishing activity, and determined the volume of spam was not impacted by the implementation of Europe’s new privacy laws.

There were many concerns that after the European Union’s General Data Protection Regulation (GDPR) went into effect on May 25, 2018, there would be an uptick in spam. While it has only been three months since the GDPR went into effect, based on our research, not only has there not been an increase in spam, but the volume of spam and new registrations in spam-heavy generic top-level domains (gTLDs) has been on the decline.

John Levine at CircleID, however, argues the measures used in the Recorded Future piece are not useful measures of spam volume in relation to the controls imposed by GDPR:

To understand the effect of GDPR, the relevant questions are: Is GDPR enabling damage, because it makes detection, blocking, and mitigation harder?

Note that the CircleID article only addresses the domain registration question, and does Continue reading

Come Visit Our Booth at DevOpsDays Raleigh 2018!

DevOpsDays is a technical conference for developers, system administrators and anyone else, whether expert or beginner, involved in technology. With technology and responsibilities crossing over spaces, DevOps is a movement that has rapidly spread through the technical community along with the adoption of agile techniques. DevOps Days take place all over the world as self-organized events which community members who are passionate about their work attend. The format of presentations, Ignites and Open Spaces is unique to this event. It is highly interactive and invigorating for attendees.

Come say hi, give us your feedback, and you could win a Nintendo Switch!

We’d love to get feedback from you, our customers, on what courses you’d like to see next. We’re constantly working to create new content which caters to a variety of technical certifications. We need your help deciding the best topics to add to our ever-exanding DevOps course library. As a token of appreciation, everyone who visits our booth and assists us by suggesting DevOps course topics will be entered into a contest to win a Nintendo Switch.

 

INE is also looking for talented individuals to propose and execute new courses.

Interested in working with us? We’re looking for Continue reading

We Need a Common Language for the Internet of Things

When someone tells me they have bought smart light bulbs, an Internet-connected pet cam, or any other Internet of Things (IoT) device, I always get an unsettled feeling in the pit of my stomach. They’re so excited about the affordances or their new IoT devices and apps, but I am skeptical about the privacy and security vulnerabilities. How do I have a conversation about these concerns without coming across as hyper paranoid? Perhaps the answer is that we aren’t quite ready to discuss these issues on a societal level.

Privacy and security advocates all over the world have been talking about the threats that IoT may pose to society – unless standards and regulations are put in place to help mitigate some of these risks. They champion that privacy and security should be built into design and should not come as an afterthought.

While I praise the work that advocates are doing, IoT devices are on the shelves right now and we need to be able to have conversations with everyday folk about what privacy and security risks look like in the digital economy. However, how can we have these conversations when we haven’t yet established understandable and common terms Continue reading

A Review of Ubiquiti Wireless

About six months ago, I got fed up with my Meraki MR34 APs. They ran just fine, but they needed attention. They needed licenses. They needed me to pay for a dashboard I used rarely but yet had to keep up yearly. And that dashboard had most of the “advanced” features hidden away under lock and key. I was beyond frustrated. I happen to be at the Wireless LAN Professionals Conference (WLPC) and ran into Darrell DeRosia (@Darrell_DeRosia) about my plight. His response was pretty simple:

“Dude, you should check out Ubiquiti.”

Now, my understanding of Ubiquiti up to that point was practically nothing. I knew they sold into the SMB side of the market. They weren’t “enterprise grade” like Cisco or Aruba or even Meraki. I didn’t even know the specs on their APs. After a conversation with Darrell and some of the fine folks at Ubiquiti, I replaced my MR34s with a UniFI AP-AC-HD and an AP-AC-InWall-Pro. I also installed one of their UniFi Security Gateways to upgrade my existing Linksys connection device.

You may recall my issue with redundancy and my cable modem battery when I tried to install the UniFi Security Gateway for Continue reading

IDG Contributor Network: 5 reasons why it’s important to mix and match in your cloud strategy

The rise of the cloud settled the age-old debate about whether IT teams should choose an array of exceptional technologies from various providers, or a fully integrated stack of (mostly unexceptional) applications from a single vendor.Thanks to cloud computing, you can have the very best applications—and the very best clouds—for the IT tasks at hand. And you don't have to deal with the headache of investing heavily in infrastructure and building it yourself.Here's a quick look at five ways the cloud and related technologies enable your IT team to launch, integrate, scale, and secure the full spectrum of applications.1. You can pick the best cloud for the job While businesses may end up running most applications in a single cloud, there are lots of reasons to diversify and adopt a multi-cloud strategy. The major cloud infrastructure providers have individual strengths—and a well-planned multi-cloud strategy enables you to pick the cloud platform that offers the best combination of technical features, pricing, and performance for each application.  Some examples of workloads that may be better running on one hyper-scale cloud over another could be enterprise business applications, big data or high-performance computing (HPC) workloads.To read this article Continue reading

IDG Contributor Network: 5 reasons why it’s important to mix and match in your cloud strategy

The rise of the cloud settled the age-old debate about whether IT teams should choose an array of exceptional technologies from various providers, or a fully integrated stack of (mostly unexceptional) applications from a single vendor.Thanks to cloud computing, you can have the very best applications—and the very best clouds—for the IT tasks at hand. And you don't have to deal with the headache of investing heavily in infrastructure and building it yourself.Here's a quick look at five ways the cloud and related technologies enable your IT team to launch, integrate, scale, and secure the full spectrum of applications.1. You can pick the best cloud for the job While businesses may end up running most applications in a single cloud, there are lots of reasons to diversify and adopt a multi-cloud strategy. The major cloud infrastructure providers have individual strengths—and a well-planned multi-cloud strategy enables you to pick the cloud platform that offers the best combination of technical features, pricing, and performance for each application.  Some examples of workloads that may be better running on one hyper-scale cloud over another could be enterprise business applications, big data or high-performance computing (HPC) workloads.To read this article Continue reading

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