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Large-scale network simulations in Kubernetes, Part 2 – Network topology orchestration

In the previous post I’ve demonstrated a special-purpose CNI plugin for network simulations inside kubernetes called meshnet. I’ve shown how relatively easy it is to build a simple 3-node topology spread across multiple kubernetes nodes. However, when it comes to real-life large-scale topology simulations, using meshnet “as is” becomes problematic due to the following reasons:

  1. Uploading topology information into etcd requires a lot of manual effort.
  2. Any customisation like startup configuration injection or exposure of internal ports is still a manual process.

That is why I built k8s-topo - an orchestrator for network simulations inside kubernetes. It automates a lot of these manual steps and provides a simple and user-friendly interface to create networks of any size and configuration.

k8s-topo overview

k8s-topo is a Python script that creates network topologies inside k8s based on a simple YAML file. It uses syntax similar to docker-topo with a few modifications to account for the specifics of kubernetes environment. For instance, the following file is all what’s required to create and configure a simple 3-node topology:

etcd_port: 32379
links:
  - endpoints: ["host-1:eth1:12.12.12.1/24", "host-2:eth1:12.12.12.2/24"]
  - endpoints: ["host-1:eth2:13.13.13.1/24", "host-3:eth1:13.13.13.3/24"]
  - endpoints: ["host-2:eth2:23.23. Continue reading

Customer Data Isn’t Always an Asset: Lessons from the Marriott Data Breach

As data analytics have improved, the massive amounts of data that companies acquire from their customers has only gained in economic value. In the corporate world of today, this data can be a real asset for companies. However, as today’s news, that the records of over 500 million guests of Marriott International’s Starwood division hotels were involved in a data breach, makes clear, corporate thinking about the value of customer data needs to be reevaluated.

Especially when it comes to corporate acquisitions, companies need to start treating customer data as a potential liability, as well as an asset.

In September 2016, Marriott International acquired Starwood for $13.6 billion. When Marriott International sought to buy the Starwood hotel chain, Starwood’s customer data, played a central role in their reasoning for the acquisition. Citing higher income and better brand loyalty among program members,  Arne Sorenson, the Marriott CEO, specifically referred to Starwood’s loyalty program as a “central, strategic rationale for the transaction.” Loyalty programs, in addition to attracting repeat customers, also “provide hotels with a wealth of information on their guests” which hotels can use to “create laser focused marketing campaigns for various different kinds of guests.”

While Continue reading

Weekend Reads 113018

You might not know the name, but you probably haven’t missed their work — highly targeted credit card skimming attacks, hitting Ticketmaster and British Airways, as well as consumer electronics giant Newegg and likely many more sites that have been silently hacked to scrape consumer credit card data at the checkout. —Zack Whittaker @Tech Crunch

Given this level of concentration, the notion of a “free and open” internet now seems almost quaint. Most information transmitted online today is sieved through a few large search engines, social media networks, and streaming video services. These firms may collectively be referred to as “edge companies”: they provide online content or services over a network, but they do not own the network themselves. —Travis Kavulla @American Affairs

Google is increasingly divided over supporting the news industry, either through direct funding, or with a set of initiatives directly aimed at improving publishers’ bottom line. —Frederic Filloux @Monday Note

To hear the moans on Wall Street, you’d think the end of the world is no longer coming—it has arrived. Successive waves of selling have pushed share prices down this year. To about where they were at the beginning of the year. Hardly a catastrophe for investors. Continue reading

IoT roundup: Retrofitting vehicle tracking, plus a new IoT stadard

The Internet of Things has reached that fun phase in which everyone has started to figure out a wider array of meaningful use cases for the technology, but few of those uses are fully mature. From the industrial IoT and predictive maintenance to nebulous smart city tech the IoT’s hitting a new growth spurt, and one of the newest applications is headed to a highway near you.Or, actually, it’s coming to a really big parking lot somewhere near you. Fleet management is one of the long-promised applications of IoT tech that’s starting to take off lately, with announcements this month from companies like Silicon Labs and Cognosos, who rolled out a vehicle-tracking system for lot operators.To read this article in full, please click here

IoT roundup: Retrofitting vehicle tracking, plus a new IoT standard

The Internet of Things has reached that fun phase in which everyone has started to figure out a wider array of meaningful use cases for the technology, but few of those uses are fully mature. From the industrial IoT and predictive maintenance to nebulous smart city tech the IoT’s hitting a new growth spurt, and one of the newest applications is headed to a highway near you.Or, actually, it’s coming to a really big parking lot somewhere near you. Fleet management is one of the long-promised applications of IoT tech that’s starting to take off lately, with announcements this month from companies like Silicon Labs and Cognosos, who rolled out a vehicle-tracking system for lot operators.To read this article in full, please click here

[Sponsored] Short Take – Anuta Networks

Anuta Networks joins Network Collective for a second time, again entrusting the message to those who use their products in the real world. In this Network Collective Short Take, Ryan Lynn of Trace3 joins us to talk about the general state of network orchestration and why Trace3 is excited about what Anuta’s ATOM provides to their customers.

Thank you to Anuta Networks for sponsoring today’s episode and supporting the content we’re creating here at Network Collective. If you would like to learn more about Anuta’s ATOM platform, you can head to https://anutanetworks.com/collective for lots of great information, white papers, case studies, and to try the ATOM platform out for yourself.

 

Ryan Lynn
Vice President of Emerging Architecture - Trace3
Jordan Martin
Host

The post [Sponsored] Short Take – Anuta Networks appeared first on Network Collective.

A Critical First Step for IoT Security in Senegal

As barriers to entry start to fall, the Internet of Things (IoT) industry could provide Africa with an opportunity to build a brighter economic future.

Several countries are already establishing tech hubs that could supply the infrastructure to fuel IoT, and while there is still a wide gap between the haves and have-nots of Internet access, with more than 60 per cent of Africa still offline, it’s easy to build a case for connectivity.

Mass urbanization is on the rise, and investing in the infrastructure needed to fuel future smart cities and connect more Africans to the opportunity the Internet offers is a logical step forward. But it’s also important that security is in place to support this promising new economy.

Unfortunately, many IoT devices are rushed to market with little thought for basic security and privacy protections. In a world with so many newly connected things, it’s hard for consumers to keep up – and to know if manufactures are protecting their privacy and security.

To address this, Senegal has taken a critical first step. They’ve signed a memorandum of understanding with the Internet Society to strengthen IoT security. Together, they will develop an IoT Security Framework for Senegal Continue reading

The Magic of the CCIE

I stumbled across a great Reddit thread this week: Is the CCIE as impossible as it seems? There are a lot of great replies on that thread about people passing and the “good old days” of Banyan Vines, Appletalk, and more. It’s also a fascinating look into how the rest of the networking industry sees exams like the CCIE and JNCIE. Because those of us that have the numbers seem to be magicians to some.

Sleight of CLI Hand

Have you ever seen the cups and balls magic trick? Here’s an excellent example of it from the recently departed Ricky Jay:

Impressive, right? It’s amazing to behold a master craftsman at work. Every time I watch that video I’m amazed. I know he’s doing sleight of hand. But I can’t catch it. Now, watch this same video but with annotations turned on. SPOILER ALERT – The annotations will tell you EXACTLY where the tricks are done:

Is it more impressive now that you know how the tricks are done? Check out this demonstration from Penn and Teller that shows you exactly how they do the tricks as well:

Okay, so it’s a little less mystifying now that you’ve Continue reading

AWS, Red Hat move to shore up hybrid cloud environments

Two more signs it’s a hybrid cloud world: This week, Red Hat, in the process of being bought by IBM, acquired a startup that specializes in managing storage across multi-cloud environments. And Amazon launched a raft of hybrid storage services, as well as a service that allows customers to run Amazon Web Services (AWS) cloud in your own data center.[ Read also: AWS does hybrid cloud with on-prem hardware, VMware help ] Red Hat acquires data storage startup NooBaa IBM is not expected to close the planned $34 billion purchase of Red Hat until the second half of 2019, so in the meantime, Red Hat continues on its way, grabbing cloud startups it sees as strategic. This week, it announced its acquisition of NooBaa, which specializes in managing data storage services across hybrid and multi-cloud deployments.To read this article in full, please click here

AWS, Red Hat move to shore up hybrid cloud environments

Two more signs it’s a hybrid cloud world: This week, Red Hat, in the process of being bought by IBM, acquired a startup that specializes in managing storage across multi-cloud environments. And Amazon launched a raft of hybrid storage services, as well as a service that allows customers to run Amazon Web Services (AWS) cloud in your own data center.[ Read also: AWS does hybrid cloud with on-prem hardware, VMware help ] Red Hat acquires data storage startup NooBaa IBM is not expected to close the planned $34 billion purchase of Red Hat until the second half of 2019, so in the meantime, Red Hat continues on its way, grabbing cloud startups it sees as strategic. This week, it announced its acquisition of NooBaa, which specializes in managing data storage services across hybrid and multi-cloud deployments.To read this article in full, please click here

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