Stuff The Internet Says On Scalability For July 19th, 2019

Wake up! It's HighScalability time—once again:

 

XKCD

 

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10x Engineers – Don’t Believe The Hype

The idea of a 10x engineer is just too good to be true. In this Short Take I take a look at the recent controversy and share my thoughts about the twitter thread that sparked it all. Here’s a hint, there’s no such thing as a 10x engineer but there are some things to be learned from what the author had to say.

Jordan Martin
Host

The post 10x Engineers – Don’t Believe The Hype appeared first on Network Collective.

Ansible + ServiceNow Part 2: Parsing facts from network devices using PyATS/Genie

blog_ansible-and-service-now-part2

This blog is part two in a series covering how Red Hat Ansible Automation can integrate with ticket automation. This time we’ll cover dynamically adding a set of network facts from your switches and routers and into your ServiceNow tickets. If you missed Part 1 of this blog series, you can refer to it via the following link: Ansible + ServiceNow Part 1: Opening and Closing Tickets.

Suppose there was a certain network operating system software version that contained an issue you knew was always causing problems and making your uptime SLA suffer. How could you convince your management to finance an upgrade project? How could you justify to them that the fix would be well worth the cost? Better yet, how would you even know?

A great start would be having metrics that you could track. The ability to data mine against your tickets would prove just how many tickets were involved with hardware running that buggy software version. In this blog, I’ll show you how to automate adding a set of facts to all of your tickets going forward. Indisputable facts can then be pulled directly from the device with no chance of mistakes or accidentally being overlooked Continue reading

Securing infrastructure at scale with Cloudflare Access

Securing infrastructure at scale with Cloudflare Access

I rarely have to deal with the hassle of using a corporate VPN and I hope it remains this way. As a new member of the Cloudflare team, that seems possible. Coworkers who joined a few years ago did not have that same luck. They had to use a VPN to get any work done. What changed?

Cloudflare released Access, and now we’re able to do our work without ever needing a VPN again. Access is a way to control access to your internal applications and infrastructure. Today, we’re releasing a new feature to help you replace your VPN by deploying Access at an even greater scale.

Access in an instant

Access replaces a corporate VPN by evaluating every request made to a resource secured behind Access. Administrators can make web applications, remote desktops, and physical servers available at dedicated URLs, configured as DNS records in Cloudflare. These tools are protected via access policies, set by the account owner, so that only authenticated users can access those resources. These end users are able to be authenticated over both HTTPS and SSH requests. They’re prompted to login with their SSO credentials and Access redirects them to the application or server.

Continue reading

TOGAF 9 Certified

After passing more technical certification tests than I care to count, the concept of studying for a non-technical exam seemed surreal. Studying for exam that was not going to teach or test me about protocols, signals, or configurations just sounded so foreign. I do have to admit that there were doubts, the thought of studying […]

Meta-learning neural Bloom filters

Meta-learning neural bloom filters Rae et al., ICML’19

Bloom filters are wonderful things, enabling us to quickly ask whether a given set could possibly contain a certain value. They produce this answer while using minimal space and offering O(1) inserts and lookups. It’s no wonder Bloom filters and their derivatives (the family of approximate set membership algorithms) are used everywhere. Hash functions are the key to so many great algorithms, and Bloom filters are one of my favourite applications of them.

But Rae et al. think we can do even better, especially when it comes to the space required by an approximate set membership data structure. Being an ICLR paper of course, you won’t be surprised to learn that the solution involves neural networks. This puts us in the same territory as SageDB and ‘The case for learned index structures.’ Probably my favourite sentence in the whole paper is this one, which crisply sets out where machine learning might be able to find an advantage over traditional algorithms:

We build upon the recently growing literature on using neural networks to replace algorithms that are configured by heuristics, or do not take advantage of the data distribution.

Bloom Continue reading

Get Ready for the Tech Preview of Docker Desktop for WSL 2

Today at OSCON, Scott Hanselman, Kayla Cinnamon, and Yosef Durr of Microsoft demonstrated some of the new capabilities coming with Windows Subsystem for Linux (WSL) 2, including how it will be integrated with Docker Desktop. As part of this demonstration, we are excited to announce that users can now sign up for the end of July Docker Desktop Technical Preview of WSL 2. WSL 2 is the second generation of a compatibility layer for running Linux binary executables natively on Windows. Since it was announced at Microsoft Build, we have been working in partnership with Microsoft to deliver an improved Linux experience for Windows developers and invite everyone to sign up for the upcoming Technical Preview release.

Improving the Linux Experience on Windows

There are over half a million active users of Docker Desktop for Windows today and many of them are building Java and Node.js applications targeting Linux-based server environments. Leveraging WSL 2 will make the Docker developer experience more seamless no matter what operating system you’re running and what type of application you’re building. And the performance improvements will be immediately noticeable.
WSL 2 introduces a significant architectural change as it is a full Linux kernel built Continue reading

Worst DNS attacks and how to mitigate them

The Domain Name System remains under constant attack, and there seems to be no end in sight as threats grow increasingly sophisticated.DNS, known as the internet’s phonebook, is part of the global internet infrastructure that translates between familiar names and the numbers computers need to access a website or send an email. While DNS has long been the target of assailants looking to steal all manner of corporate and private information, the threats in the past year or so indicate a worsening of the situation.To read this article in full, please click here

Worst DNS attacks and how to mitigate them

The Domain Name System remains under constant attack, and there seems to be no end in sight as threats grow increasingly sophisticated.DNS, known as the internet’s phonebook, is part of the global internet infrastructure that translates between familiar names and the numbers computers need to access a website or send an email. While DNS has long been the target of assailants looking to steal all manner of corporate and private information, the threats in the past year or so indicate a worsening of the situation.To read this article in full, please click here

The Field Guide to the Cloud Networking Sessions at VMworld 2019

Meet the expanded VMware NSX Product Family

Last year, we expanded the VMware NSX family of products to include NSX Data Center, NSX Cloud, AppDefense, VMware SD-WAN by Velocloud, NSX Hybrid Connect and NSX Service Mesh. This year, AVI Networks has joined our family. 

With the combined portfolio, we’re delivering on the Virtual Cloud Network vision of connecting, automating and protecting applications and data, regardless of where they are— from the data center, to the cloud and the edge. NSX delivers the full L2-7 services, enabling the public cloud experience for on-premises environments. 

Join us at VMworld US 2019

We will have an exciting line-up for VMworld US 2019. Our engineers, technologists and customers will be speaking on 80+ topics throughout the conference spanning beginner to advanced levels throughout the conference. Some session topics include:

  • Multi-cloud Networking
  • Container Networking
  • Multi-site Networking
  • Network Automation
  • Service Mesh 

Cloud Networking Sessions at VMworld

In this post, we will focus on our cloud networking sessions and showcase keynotes. Use this handy guide to begin planning your exciting week and bookmark the sessions you want to attend. 

If you’re interested in security focused sessions, read the blog Continue reading

Smart cities offer window into the evolution of enterprise IoT technology

Powering smart cities is one of the most ambitious use cases for the internet of things (IoT), combining a wide variety of IoT technologies to create coherent systems that span not just individual buildings or campuses but entire metropolises. As such, smart cities offer a window into the evolution of enterprise IoT technologies and implementations on the largest scale.And that’s why I connected with Christophe Fourtet, CSO and co-founder of Sigfox, a French global network operator, to learn more about using wireless networks to connect large numbers of low-power objects, ranging from smartwatches to electricity meters. (And I have to admit I was intrigued by the 0G network moniker, which conjured visions of weightless IoT devices floating in space, or maybe OG-style old-school authenticity. That’s not at all what it’s about, of course.)To read this article in full, please click here

A Tale of Two (APT) Transports

A Tale of Two (APT) Transports

Securing access to your APT repositories is critical. At Cloudflare, like in most organizations, we used a legacy VPN to lock down who could reach our internal software repositories. However, a network perimeter model lacks a number of features that we consider critical to a team’s security.

As a company, we’ve been moving our internal infrastructure to our own zero-trust platform, Cloudflare Access. Access added SaaS-like convenience to the on-premise tools we managed. We started with web applications and then moved resources we need to reach over SSH behind the Access gateway, for example Git or user-SSH access. However, we still needed to handle how services communicate with our internal APT repository.

We recently open sourced a new APT transport which allows customers to protect their private APT repositories using Cloudflare Access. In this post, we’ll outline the history of APT tooling, APT transports and introduce our new APT transport for Cloudflare Access.

A brief history of APT

Advanced Package Tool, or APT, simplifies the installation and removal of software on Debian and related Linux distributions. Originally released in 1998, APT was to Debian what the App Store was to modern smartphones - a decade ahead of its time!

Continue reading

BrandPost: Assessing Your Current WAN State is Key to Making Effective Changes

If your wide-area network (WAN) has been with you for many years, it may be time to think about an upgrade, especially given the emergence of technologies such as software-defined WANs (SD-WAN). But rather than just dive in, assuming SD-WAN will be a good fit, it’s helpful to perform an assessment of your current situation and what outcomes you’d like to see out of an upgrade.Making this type of assessment means asking a series of questions, the answers to which may – or may not – lead you toward adopting SD-WAN technology. To learn what sort of questions to ask, I talked with Mike Lawson, Manager of SD-WAN/NFV Solutions Architecture for CenturyLink, a global network provider.Lawson spends his time in the trenches with network architects and customers, accumulating an excellent sense of whether a company is a good candidate for SD-WAN.To read this article in full, please click here

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