OpenFlow and Firewalls Don’t Mix Well

In one of my ExpertExpress engagements the customer expressed the desire to manage their firewall with OpenFlow (using OpenDaylight) and I said, “That doesn’t make much sense”. Here’s why:

Obviously if you can't imagine your life without OpenDaylight, or if your yearly objectives include "deploying OpenDaylight-based SDN solution", you can use it as a REST-to-NETCONF translator assuming your firewall supports NETCONF.

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DockerCon 2016 Organizer Summit recap

A huge part of Docker’s success can be attributed to the hard work and dedication of the 400+ Docker meetup organizers in 73 countries who collectively support a global community of over 115,000 members. Local Docker meetups help keep the community engaged and updated on all things Docker. With over 250 groups and counting, we are continuously humbled by the dedication and time these individuals take to organize events and all that they do for their local communities. Continue reading

A surge of Pokemon Go-related apps is out to steal your data

Privacy fears about the Pokemon Go app have been largely addressed, but dozens of other apps that piggy back on the popular game have raised further concerns.Since the game launched last week, a swarm of unofficial apps has emerged and is trying to capitalize on the title’s success. And many are hungry for your personal data.These unofficial apps have been offering cheats, tips and even songs from the hit game. But in exchange, they demand permission to access sensitive data on your phone, said Chad Salisbury, a security engineer with RiskIQ, which monitors mobile malware.To read this article in full or to leave a comment, please click here

A surge of Pokemon Go-related apps is out to steal your data

Privacy fears about the Pokemon Go app have been largely addressed, but dozens of other apps that piggy back on the popular game have raised further concerns.Since the game launched last week, a swarm of unofficial apps has emerged and is trying to capitalize on the title’s success. And many are hungry for your personal data.These unofficial apps have been offering cheats, tips and even songs from the hit game. But in exchange, they demand permission to access sensitive data on your phone, said Chad Salisbury, a security engineer with RiskIQ, which monitors mobile malware.To read this article in full or to leave a comment, please click here

BRKRST-2042 – Highly Available Wide Area Network Design

Presented by: David Prall, Communications Architect, Cisco

For reference, David is the “father of IWAN”.

This session was not what I was expecting. I was expecting design and architecture, but it was all about features in IOS and IOS-XE (eg, FHRPs, talked about routing protocol timers, PfRv3, BFD). I guess I need to pay more attention to the session code (RST == routing; ARC == architecture).

Original article: BRKRST-2042 – Highly Available Wide Area Network Design

Copyright © 2016 Joel Knight . All Rights Reserved.

IBM and AT&T are cozying up to IoT developers

Big IoT partnerships are coming thick and fast these days. A deal between IBM and AT&T to help developers turn IoT ideas into reality is just the latest tie-up involving major enterprise vendors in this field.The partnership will combine AT&T’s connectivity with IBM’s Watson and Bluemix analytics platforms. Through APIs (application programming interfaces) and development environments, plus open-source tools, the two companies say they’ll make life easier for developers.IoT involves so many parts that it’s almost inevitable enterprises will be working with several vendors to get their infrastructure up and running. Devices that collect data, clouds that analyze it, and networks that link the two are just the main components of systems that can rival the complexity of anything in IT.To read this article in full or to leave a comment, please click here

BRKEWN-2017 – Understanding RF Fundamentals and the Radio Design of 11n/ac Networks


Presenter: Fred Niehaus, Technical Marketing Engineer, Cisco Wireless Networking Group

Basic understanding of radio:

  • Every radio wave has a physical size (proportionate to its wavelength)
  • The lower the frequency, the physically longer the radio wave
  • Higher frequencies have shorter waves and as such, takes more power to move them greater distances
  • 5Ghz UNI 2 and UNI 2 Ext overlap with DFS (RADAR)
  • Dynamic Freq Selection (DFS) requires that if a radio is operating in UNI 2/UNI 2 Ext and it hears something that is not WiFi, it has to get off that channel

Antenna basics:

  • Directional or omnidirectional (360 degree)
  • Cisco color markings: blue: 5, black 2.4, orange 2.4 and 5ghz
  • Low gain omnidirectional antennas radiate in a beach ball pattern
  • Omni-direction dipoles in a pancake pattern
  • Yagis are directional; radiate more like a flashlight
  • Patch: multiple elements in a square form factor; radiates like a flashlight
  • Dipole: does not require a ground plane as the bottom half is the ground
  • Monopole requires a (conductive surface) ground plate; monopoles are shorter than dipoles and often used on APs (because of the smaller size) and they can use the metal in the AP as the ground plate.
  • Azimuth: how Continue reading

iPhone 7 to have nearly 15% bigger battery than the iPhone 6s

Noted iPhone leaker OnLeaks (aka Steve Hemmerstoffer of Nowhereelse.fr) published an interesting tweet earlier today indicating that the iPhone 7 may finally address one of the more longstanding complaints about Apple's iconic smartphone: battery life. To be clear, Apple has made tremendous improvements in the iPhone's battery technology over the years, but as we continue to demand more and more from our smartphones, many people find that they can't even go a full day on their iPhone with a single charge.That being the case, OnLeaks's tweet relays that the iPhone 7's battery will have nearly 15% more capacity than the iPhone 6s battery. Pretty reliable (not 100% but almost...) source told me #iPhone7 battery = 1960mAh (#iPhone6s = 1715mAh)To read this article in full or to leave a comment, please click here

UNH SDN consortium promises interoperability testing, benchmarking

Looking to help business customers ensure their Software Defined Networking products and applications work and perform properly, the University of New Hampshire InterOperability Laboratory (UNH-IOL) this week said it would form consortium to perform controller and switch interoperability, conformance and benchmark testing. The Software-Defined Networking (SDN) Consortium expects to open for business August 1 and the 28,000 square foot lab will be working with Spirent Communications and Ixia to develop performance tests said Timothy Winters, UNH-IOL Senior Executive, Software and IP Networking.To read this article in full or to leave a comment, please click here

UNH SDN consortium promises interoperability testing, benchmarking

Looking to help business customers ensure their Software Defined Networking products and applications work and perform properly, the University of New Hampshire InterOperability Laboratory (UNH-IOL) this week said it would form consortium to perform controller and switch interoperability, conformance and benchmark testing. The Software-Defined Networking (SDN) Consortium expects to open for business August 1 and the 28,000 square foot lab will be working with Spirent Communications and Ixia to develop performance tests said Timothy Winters, UNH-IOL Senior Executive, Software and IP Networking.To read this article in full or to leave a comment, please click here

Microsoft customizes Surface tablets for enterprises

Microsoft is doing new things with its Surface tablets, and hoping that enterprises will find a lot to like.The company is taking steps to tailor the tablets to the needs of enterprises. The goal of customization is to differentiate the Surface from look-alike products, and to tie devices closely to a company's operations."We're going to meet the enterprise on their terms," said Hayete Gallot, general manager of Microsoft Devices, in an interview with the IDG News Service.Surface tablets have been successful with consumers and professionals, and Microsoft is giving it an additional enterprise twist. The effort comes as companies look to upgrade to Windows 10 PCs, with tablet-laptop hybrids like Surface being popular replacements.To read this article in full or to leave a comment, please click here

Microsoft reveals details of Windows 10 subscription model

It was always Microsoft's intention to turn Windows 10 into a cloud service with a monthly subscription attached, and now the company has rolled out details of its new subscriptions for enterprise customers, which will be introduced later this year. Microsoft made the announcement at the Worldwide Partner Conference currently taking place in Toronto. Starting this fall, the company will offer Windows 10 Enterprise E3 through its Cloud Solution Provider (CSP) network on a subscription basis at $7 per seat.To read this article in full or to leave a comment, please click here

New York driver crashes car into tree while playing Pokémon Go

A driver in New York state ran his car off the road and into a tree last night as a result of playing "Pokémon Go."Police in Auburn, a town near Syracuse in upstate New York, were called to a traffic accident shortly before 11 p.m."The driver admitted to actively playing the Pokémon Go game while driving causing him to become distracted and run off the roadway into a tree," the police said in a statement.The car was badly damaged in the accident and police say the driver is lucky he was not seriously injured."This is an example of how easily accidents can occur when someone is engaged in the game and not paying attention," the police said.To read this article in full or to leave a comment, please click here

The Ansible At Red Hat Summit Recap

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Red Hat Summit 2016 was the largest gathering of customers, partners and open source contributors yet with Ansible users and executives contributing in various sessions throughout Summit. These sessions covered topics on DevOps, Automation, Management, Best Practices and more. 

Did you miss us at Summit in San Francisco? Well good news, we've compiled a list of all Ansible related sessions below. Also, AnsibleFest 2016 in San Francisco is also right around the corner on July 28th. But if you want to start digging deeper into Ansible now, see below:

 

DevOps Lessons Automating the Deployment of J.Crew's Website with Ansible (PDF)

Oscar Gonzalez

 

Ansible Best Practices For Startups to Enterprises (PDF)

Tim Appnel and James Martin

 

Red Hat Satellite and Ansible Tower by Red Hat: Doing More Together (Video)

Justin Nemmers and Chris Wells

 

When Flexibility Met Simplicity: The Friendship of OpenStack and Ansible (PDF)

Robyn Bergeron and Major Hayden

 

Reduce Complexity and Increase Optimization with Ansible Automation (PDF)

Jon Davila

 

Ansible Accelerates Deployment at Société Générale (Blog)

Fabrice Bernhard and Justin Nemmers

 

Using Ansible to Install Containers On Red Hat Enterprise Linux Atomic Host (Blog)

Matt Micene and Greg DeKoenigsberg

 

Ansible Essentials: Deploy Apps, Manage Systems, and Securely Continue reading

Slideshow: Inside Facebook’s lab where it tests 2,000 phones at once

Facebook can test its code on 2,000 phones at onceImage by FacebookFacebook makes thousands of changes in its code every week. Any one of them could accidentally cause Facebook software to take up more data, memory or battery life on your phone. So the company tests code on more than 2,000 phones to account for different hardware models, operating systems and network connections.To read this article in full or to leave a comment, please click here

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