Cumulus Linux — The Foundation of OpenStack Automation

OpenStack is the de facto open source orchestration standard for modern cloud infrastructure. The foundational components stitch together compute, storage and, of course, networking. Linked together, these components are used for both public and private clouds all around the world. Cumulus Networks naturally fits into this ecosystem, and Cumulus Linux is the universal underlay or enabler for such deployments.

Solution Guide

Over the past two quarters, Cumulus Networks has shared solution guides for our 2.5.x releases. In this post we’re going to dive into how you can automate a proof-of-concept OpenStack deployment. For those who learn by watching, a recent video from the OpenStack Vancouver (May 2015) summit event may be helpful; the presentation summarizes all of the behind-the-scenes tasks described below.

Prerequisites

Our goal is to set up an end-to-end OpenStack deployment with the fewest interactive steps, making it as unattended as possible, and ideally taking no more than 20 minutes. The configuration scope includes all networking, server and storage components.

To facilitate a consistent architecture, we’ve imposed a few basic cabling and physical requirements. To make the PoC easy to implement, we assume no external Internet access is available — the entire solution is autonomous with all prerequisites present or cached.

Matt-Blog Correct Pic

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Google opens up on its SDN

At this week’s Open Network Summit, Google spoke for the first time publicly about its custom data center network. For nearly a decade, we’ve been hearing, reading and writing about how Google was building its own switches and writing its own software to handle the tremendous traffic load on its search engine and applications because vendor offerings were either not up to the task, too expensive, or both.This week we found out how they did it. In a keynote presentation at ONS, Amin Vahdat, Google Fellow and Technical Lead for Networking, described the company’s data center network architecture, capabilities and capacity for a rapt audience thirsting for information on software-defined networking implementations and experiences.To read this article in full or to leave a comment, please click here

Fitbit IPO pumps up the heart rate of investors

Fitbit sprinted into Wall Street in its debut as a public company Thursday, as its shares opened 52 percent higher than the price that the wearables company had set for them.Priced at US$20 on Wednesday, the stock instead opened at $30.40. Earlier in the week Fitbit had increased the price range of its IPO to $17 to $19 from the original range of $14 to $16.With its shares trading for around $30, Fitbit is worth approximately $6 billion dollars.Fitbit’s wearables collect health and fitness data, including calories burned and steps walked. While smartwatches also offer these features, some analysts are bullish about fitness trackers, saying that they generally have simpler user interfaces, longer battery lives and lower prices.To read this article in full or to leave a comment, please click here

EU faces IT staff shortfall of 825,000, redoubles training

The European Union faces a huge shortfall of qualified IT staff in Europe by 2020, prompting EU countries to redouble efforts to offer technology training.There are not enough IT specialists graduating in Europe to fill all jobs, creating a digital skills gap that could lead to 825,000 vacancies in the sector five years from now, according to figures released by the European Commission on Thursday.The news comes as four more countries join a program begun in 2013 to increase opportunities for workers to learn IT skills across the EU.Almost 24 million of the EU’s 500 million inhabitants are looking for work, according to Commission figures, yet businesses are having difficulty finding skilled IT workers.To read this article in full or to leave a comment, please click here

Outlook for iOS, Android get enhanced management features

Microsoft updated its Outlook apps for iOS and Android Thursday to let system administrators have greater control over how employees use corporate email accounts.The update brings support for the company’s Intune mobile application management solution and a Conditional Access feature that requires users enroll in mobile device management before getting their Office 365 email through Outlook. Administrators can deploy the Outlook app to devices that are enrolled in a company’s Intune system, and then manage them under a custom policy.That policy can include a variety of limitations, like preventing users from copying corporate email content to applications or other email accounts that aren’t managed by the company and encrypting data from the Outlook app. At the same time, the profile can be set up so that personal email accounts added to the Outlook app aren’t managed under corporate policy.To read this article in full or to leave a comment, please click here

6 historic tech items that were rescued from the trash

Image by Brian Dunnette CC BY 2.0All technology, sooner or later, becomes obsolete at which point it’s often simply disposed of in one way or another and forgotten about. Sometimes that piece of technology is a one-of-kind or is historic for some other reason but its importance isn’t recognized at the time and it’s lost for good. Every once in a while, though, a historic piece of hardware or software is saved from such an inglorious fate through the hard work of those who appreciate its historic value or thanks simply to dumb luck. Use the arrows above to read about 6 historic tech items that were literally pulled out of a dumpster, landfill, or recycling center - or were rescued just before they made it into one.To read this article in full or to leave a comment, please click here

6 productivity tips for Chromebook power users

Chromebook productivity tipsImage by Koman90 via WikimediaChromebooks are more than toy computers for running the Chrome Web browser. Google’s rapid development of Chrome OS has given the cloud-based operating system a significant set of power-user tools to help make you more productive and to ensure your data is secured.To read this article in full or to leave a comment, please click here

Go has a debugger—and it’s awesome!

Something that often, uh... bugs1 Go developers is the lack of a proper debugger. Sure, builds are ridiculously fast and easy, and println(hex.Dump(b)) is your friend, but sometimes it would be nice to just set a breakpoint and step through that endless if chain or print a bunch of values without recompiling ten times.

CC BY 2.0 image by Carl Milner

You could try to use some dirty gdb hacks that will work if you built your binary with a certain linker and ran it on some architectures when the moon was in a waxing crescent phase, but let's be honest, it isn't an enjoyable experience.

Well, worry no more! godebug is here!

godebug is an awesome cross-platform debugger created by the Mailgun team. You can read their introduction for some under-the-hood details, but here's the cool bit: instead of wrestling with half a dozen different ptrace interfaces that would not be portable, godebug rewrites your source code and injects function calls like godebug.Line on every line, godebug.Declare at every variable declaration, and godebug.SetTrace for breakpoints (i.e. wherever you type _ = "breakpoint").

I find this solution brilliant. What you get out Continue reading

Anger

"

I suppose that when one hears a tale of hideous cruelty anger is quite the wrong reaction, and merely wastes the energy that ought to go in a different direction: perhaps merely dulls the conscience which, if it were awake, would ask us, “Well, what are you doing about it? How much of your live have you spent in really combating this?”

" C.S. Lewis —

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The Upload: Your tech news briefing for Thursday, June 18

Microsoft hands control of devices to Windows boss Myerson, pushes Elop overboardStephen Elop is leaving Microsoft for a second time, as CEO Satya Nadella hands control of the devices division he ran to Windows chief Terry Myerson, Computerworld reports. Elop previously left Microsoft to run Nokia, rejoining his former employer when it bought Nokia’s smartphone business. Myerson will now run the combined “Windows and Devices Group,” making him one of his own best customers.Uber goes to court in California to deny a driver employee rightsTo read this article in full or to leave a comment, please click here

Samsung wants court to review damages in patent fight with Apple

Samsung Electronics has asked that a full bench of an appeals court should review a damages award in a long-standing patent infringement dispute with arch-rival Apple.Apple sued Samsung in 2011 alleging that Samsung phones infringed on several iPhone patents. The U.S. District Court for the Northern District of California awarded Apple damages of US$930 million after a jury found that Samsung infringed Apple’s design and utility patents and diluted its trade dresses, which relate to the overall look and packaging of a product.A three-judge panel of the U.S. Court of Appeals for the Federal Circuit agreed last month with the jury’s verdict on the design patent infringements, the validity of two utility patent claims, and the damages awarded for the design and utility patent infringements appealed by Samsung. But the appeals court reversed the jury’s findings that the asserted trade dresses are protectable, and vacated the damages relating to trade dress dilution.To read this article in full or to leave a comment, please click here

LinkedIn says private bug bounty program works for it better

LinkedIn plans to continue closely vetting researchers for its bug bounty rewards program, saying it reduces the number of distracting erroneous and irrelevant reports.The decision to keep its program private “gives our strong internal application security team the ability to focus on securing the next generation of LinkedIn’s products while interacting with a small, qualified community of external researchers,” wrote Cory Scott, LinkedIn’s director of information security, in a blog post.Security researchers with vetted backgrounds are invited to participate, which allow them to have the same experience as if they were on LinkedIn’s internal security team, Scott wrote.To read this article in full or to leave a comment, please click here

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