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Category Archives for "Networking"

Google could be getting serious about IoT with release of Android Things

Google I/O, the company's annual developer conference, grabs fewer headlines than it used to in ages past – the reveal of Google Glass was one for the record books, even the biggest Google detractor would have to admit. But Google's still planning to make some waves this year, particularly with what seems likely to be a full roll-out of Android Things 1.0, the variant Android OS designed for IoT.The idea behind Things is to provide a unified, one-size-fits-all software option for the developers of constrained devices like smart displays, kiosks and digital signage, among others. Device makers won’t be allowed to modify parts of Android Things’ code, specifically the parts that ensure Google can flash updates to all devices running the software at any time.To read this article in full, please click here

Hackathon at Africa Internet Summit Focuses on Time, Vehicular Communications, and Network Programmability

We are pleased to announce the 2nd Hackathon@AIS will be held in Dakar, Senegal, on 9-10 May, alongside the Africa Internet Summit. Participants from 14 countries have confirmed their participation and will work on activities centered around three main topics:

  • The Network Time Protocol (or NTP)
  • Wireless communication in vehicular environments – based on Intelligent Transportation Systems
  • Network Programmability

Working on open Internet standards involves a collaborative effort whereby individuals from different backgrounds provide input and expertise to improve the Internet. Work is focused on common objectives with set timelines. This work is mostly done by people in different geographical locations using the Internet (and online tools) to collaborate on the work. In some cases, short technical events called hackathons place experts in one physical location to work collaboratively to solve a problem or develop a new product or output in a short period of time.

Last year, the Internet Society’s African Regional Bureau, together with AFRINIC, organized a hackathon in Kenya, during the 2017 Africa Internet Summit. In Africa, work on open Internet standards development is low, with only a handful of Request For Comments (RFCs) known to have been published by experts from the region. One of Continue reading

A Secure Supply Chain for Kubernetes

With KubeCon EU happening in Copenhaguen, we looked back at the most popular posts with our readers on Docker and Kubernetes. For those of you that have yet to try Docker EE 2.0, this blog highlights how Docker EE 2.0 provides a secure supply chain for Kubernetes.

The GA release of the Docker Enterprise Edition (Docker EE) container platform last month integrates Kubernetes orchestration, running alongside Swarm, to provide a single container platform that supports both legacy and new applications running on-premises or in the cloud. For organizations that are exploring Kubernetes or deploying it in production, Docker EE offers integrated security for the entire lifecycle of a containerized application, providing an additional layer of security before the workload is deployed by Kubernetes and continuing to secure the application while it is running.

Mike Coleman previously discussed access controls for Kubernetes. This week we’ll begin discussing how Docker EE secures the Kubernetes supply chain.

What is a Software Supply Chain?

When you purchase something from a retail store, there is an entire supply chain that gets the product from raw materials to the manufacturer to you. Similarly, there is a software supply chain that takes an application from Continue reading

Automation Win: Zero-Touch Provisioning

Listening to the networking vendors it seems that zero-touch provisioning is a no-brainer … until you try to get it working in real life, and the device you want to auto-configure supports only IP address assignment via DHCP, configuration download via TFTP, and a DHCP option that points to the configuration file.

As Hans Verkerk discovered when he tried to implement zero-touch provisioning with Ansible while attending the Building Network Automation Solutions course you have to:

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Stateless datacenter load-balancing with Beamer

Stateless datacenter load-balancing with Beamer Olteanu et al., NSDI’18

We’ve spent the last couple of days looking at datacenter network infrastructure, but we didn’t touch on the topic of load balancing. For a single TCP connection, you want all of the packets to end up at the same destination. Logically, a load balancer (a.k.a. ‘mux’) needs to keep some state somewhere to remember the mapping.

Existing load balancer solutions can load balance TCP and UDP traffic at datacenter scale at different price points. However, they all keep per-flow state; after a load balancer decides which server should handle a connection, that decision is “remembered” locally and used to handle future packets of the same connection. Keeping per-flow state should ensure that ongoing connections do not break when servers and muxes come or go…

There are two issues with keeping this state though. Firstly , it can sometimes end up incomplete or out of date (especially under periods of rapid network change, such as during scale out and scale in). Secondly, there’s only a finite amount of resource to back that state, which opens the door to denial of service attacks such as SYN flood attacks.

Beamer is Continue reading

OSPF LSA Types

Link-state advertisements (LSA) are used to communicates the router’s local routing topology to all other local routers in the same OSPF area. There are 11 types of LSAs although only the 6 most commonly used ones are described in this post.

Worth Reading: Automatically detecting peering infrastructure outages

Given the high concentration of interconnections, the uptime of peering infrastructures is crucial for overlay Internet applications. Facilities and IXPs strive to meet Service Level Agreements (SLAs) of ‘five nines’ (five minutes downtime per year), and ‘four nines’ (50 minutes downtime per year). However, outages still occur due to power failures, human errors, attacks, and natural disasters. —Vasileios Giotsas @APNIC

IDG Contributor Network: IT teams are drowning in data – throw them a lifeline

Today’s businesses thrive on Big Data insights — from sales reports and customer demographics, to business expenses and trend analysis. This explosion of data is multiplied by escalating social media, rich multimedia files and the Internet of Things (IoT). It’s no wonder that the growth of network data traffic continues to defy expectations, and IT support teams are struggling to keep up.But beyond simply being awash in the sheer volume of data traffic, a more complex challenge for enterprise IT is how to make the best use of network performance metadata to streamline workflows, enhance productivity and meet service level expectations, while optimizing the user experience. All too often, IT support teams are drowning in a sea of data, treading water without direction while the end user waits for resolution of their issue.To read this article in full, please click here

New to the INE Course Library: Infrastructure as Code in AWS With Terraform

This course will teach you how to use Terraform to provision your AWS infrastructure. It will guide you through setting up Terraform with your AWS account and take you through creating your first resource with Terraform in AWS.

 

About the Course:

This course is taught by Kevin Holditch and is 4 hours and 28 minutes long.

What You’ll Learn:

  • All of the resource types Terraform can create and how you can use variables to create more advanced infrastructure setups
  • How to group a set of resources into a reusable module allowing you to easily create common setups again and again
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