NASA Pi Day Challenge 2017: Don’t crater…

NASA is encouraging teachers to share its Pi Day Challenge with students on March 14, which is known in mathematical circles as Pi Day (i.e., 3.14). After all, who can't get fired up to learn more about the mathematical constant that is the ratio of a circle's circumference to its diameter?Jet Propulsion Laboratory for the fourth straight year has created an illustrated quiz aimed at students in grades 6 through 12 features four math problems (using pi) that NASA scientists and engineers must solve to understand space.Topics touched on in the quiz include Mars craters, a total solar eclipse, Saturn and the search for life beyond Earth.To read this article in full or to leave a comment, please click here

Ansible For Networking Part 2

This is part two of a series on Anisble for network engineers. In this part of the series we will take the playbook from part one and convert it into roles. Roles in Ansible allow for easy re-use and sharing of code and it is important to understand them as they will use role based...

Configuring Cisco IOS XE With YANG-based YAML Files

One thing that puts a lot of network engineers off NETCONF and YANG is the complexity of the device configuration process. Even the simplest change involves multiple tools and requires some knowledge of XML. In this post I will show how to use simple, human-readable YAML configuration files to instantiate YANG models and push them down to network devices using a single command.

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iPhone 8 Rumor Rollup: The Great iPhone 8 freak-out, no worries about Galaxy S8, new concept design

This past week featured the Great iPhone 8 freak-out, with more rumors that the 10th anniversary Apple smartphone would be delayed past September and that it might not even be called the iPhone 8 or the iPhone X. No, instead the Apple Watch-esque iPhone Edition is the latest possible name to be bandied about.THE NEW EDITION  Forbes picked up on a report from hit or miss Japanese site Mac Otakara that Apple is mulling iPhone Edition as the name for its next flagship smartphone. This name for the speculated to be $1,000 device would align with the top-end Apple Watch, dubbed Watch Edition. To read this article in full or to leave a comment, please click here

On web’s 28th anniversary, its creator Tim Berners-Lee takes aim at fake news

Today, on the 28th anniversary of the web, its creator warned of three trends that must die for the web to be all that it should be. One of those is the spreading of fake news.On March 12, 1989, Tim Berners-Lee submitted his original proposal for the creation of the World Wide Web. 28 years later, in an open letter, Berners-Lee said that in the last 12 months, “I’ve become increasingly worried about three new trends, which I believe we must tackle in order for the web to fulfill its true potential as a tool which serves all of humanity.” We’ve lost control of our personal data. It’s too easy for misinformation to spread on the web. Political advertising online needs transparency and understanding. As it stands now for most of the web, people get free content in exchange for their personal data. Once companies have our data, we no longer have control over with whom it is shared. We can’t pick and choose what gets shared; it’s generally “all or nothing.”To read this article in full or to leave a comment, please click here

On web’s 28th anniversary, its creator Tim Berners-Lee takes aim at fake news

Today, on the 28th anniversary of the web, its creator warned of three trends that must die for the web to be all that it should be. One of those is the spreading of fake news.On March 12, 1989, Tim Berners-Lee submitted his original proposal for the creation of the World Wide Web. 28 years later, in an open letter, Berners-Lee said that in the last 12 months, “I’ve become increasingly worried about three new trends, which I believe we must tackle in order for the web to fulfill its true potential as a tool which serves all of humanity.” We’ve lost control of our personal data. It’s too easy for misinformation to spread on the web. Political advertising online needs transparency and understanding. As it stands now for most of the web, people get free content in exchange for their personal data. Once companies have our data, we no longer have control over with whom it is shared. We can’t pick and choose what gets shared; it’s generally “all or nothing.”To read this article in full or to leave a comment, please click here

Father of the Web cites 3 big concerns about his 28-year-old baby

Sir Tim Berners-Lee, who 28 years ago this March 12 submitted a document laying out his vision for what would become the worldwide web, is proud of what his creation has become but he's also concerned enough about certain issues that he's released an open letter about them today through the Web Foundation.To read this article in full or to leave a comment, please click here

Turkiyede CCDE Egitimi

Bu Turkce paylastigim ilk post olacak. Heyecanliyim. Ama daha cok , Turkiyede ve Turkce CCDE Egitimi verecek olmaktan dolayi heyecanliyim. Takipcilerim bilirlerki 2 yildan fazla bir suredir Cisco CCDE Egitimi vermekteyim ve egitimlerime Dunyanin her yerinden 100 lerce kisi katilmistir. Cogunlukla Online/Live olmakla birlikte, Amerikada, Dubai de , Afrika da , Qatar ve Avrupada Onsite […]

The post Turkiyede CCDE Egitimi appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.

MPLS Layer 3 VPN Deployment

MPLS Layer 3 VPN Deployment In this post I will explain MPLS Layer 3 VPN deployment by providing a case study. This deployment mainly will be for green field environment where you deploy network nodes and protocols from scratch. This post doesn’t cover migration from Legacy transport mechanisms such as ATM and Frame Relay migration as […]

The post MPLS Layer 3 VPN Deployment appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.

The Gearhead Toolbox, first opening, and look! Static web sites!

Welcome to the first opening of The Gearhead Toolbox. There are so many really amazing tools and services appearing these days I’m going to start regularly posting a selection from the Toolbox to make sure you know what’s hot. In this, the first installment, we focus on static web site generators and hosting.StaticGen, choosing a static web site generatorThere are lots of web publishing frameworks and a design that’s become extremely popular is static web sites. The rationale for sites built this way is that they are simple to host (there’s little or no server side configuration required) and compared to products like WordPress they present no attack surface making it trivially easy to secure your content from hackers. On top of that, without the overhead of running databases and tons of supporting backend code, static web sites are really fast so you’ll get better SEO ratings!To read this article in full or to leave a comment, please click here

Ansible For Networking Part 1

This is part one of a series on Anisble for network engineers. The series will concentrate on Ansible as a configuration management tool for networking and is aimed at those with a basic understanding of Ansible. If you are just starting out with Ansible, see my quick start guide here and...

A reader asks: How can I create an autoblog?

Long time reader and old friend, Jim Sterne, recently wrote to me with a question: Dear Gearhead,I'd like to start publishing a newsletter about a specific area of interest, using the latest in feeds, bots, scrapers and content management organizers to make things as automated as possible but still being able to keep my eye on what gets posted, emailed, tweeted and projected directly into the corneas of avid, would-be readers.What’s out there at the moment?Many thanks,Jim Sterne One more publisher on the InterWebsTo read this article in full or to leave a comment, please click here

MPLS Transport Profile (MPLS-TP) Basic Explanation and Key Points

MPLS Transport Profile (MPLS-TP) Multi-Protocol Label Switching Transport Profile (MPLS-TP) is a new technology developed jointly by the ITU-T and the IETF. The key motivation is to add OAM functionality to MPLS in order to monitor each packet and thus enable MPLS-TP to operate as a transport network protocol.   Motivations for MPLS Transport Profile  […]

The post MPLS Transport Profile (MPLS-TP) Basic Explanation and Key Points appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.

Quality of Service Best Practices

Quality of Service Best Practices What is best practice ? Below is a Wikipedia definition of best practice. This apply to education as well.   A best practice is a method or technique that has been generally accepted as superior to any alternatives because it produces results that are superior to those achieved by other […]

The post Quality of Service Best Practices appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.

Some confusing language in the 0day debate

As revealed in last week's CIA #Vault7 leaks, the CIA has some 0days. This has ignited the debate about whether organizations like the CIA should be disclosing these 0days so that vendors can fix them, rather than "stockpiling" them. There seems to be some confusion about language.


Stockpile

The word "stockpile" has multiple connotations, as shown below:


This distorts the debate. Using the word "stockpile" strongly implies "reserve for use" at some time in the future. This prejudices the debate. If the the 0day is sitting on a shelf somewhere not being used, then it apparently has little value for offense, and thus, should be disclosed/patch for defense.

The truth is that that government does not buy 0days to sit on the shelf. With few exceptions, it buys 0days because it plans to use them in an offensive operation. This was described in that recent RAND report:

It's the sellers who might keep 0days on the shelf, because the buyers have no immediate need. It's not the government buyers who are stockpiling.

Words like "stockpiling", "amassing", or "hoarding" also bring the connotation that the number is too big. Words like "hoarding" bring the connotation that the government is doing something Continue reading

The Internet’s Gilded Age

The rise of the Internet has heralded rapid changes in our society. The opportunities presented by a capable and ubiquitous communications system and a global transportation network have taken some corporations from the multinational to the status of truly global mega-corporation. There are a handful of large scale winners in this space and many losers. But this is not the first time we’ve witnessed a period of rapid technological and social change.

White Box Switches Have Grown Up

White box switches have come a long way. The recent activities in OCP validate the vision and progress of white box switches, and more importantly it is clear that this trend is progressing from data centers to enterprises. I remember when Zeus Kerravala wrote in his 2016 article, “White Box Switches are Now Ready for Prime Time,” he pointed out three important advantages:

– Cost and reliability
– Features and capabilities
– Network operations

As a NOS vendor, we see NOS is being adopted into production environments. Even though there are still challenges with white box switches going from data centers to other segments, there is no doubt the networking industry has moved onto the path toward white box switches.

From what we saw at OCP Summit, the overall reliability of white box switches is improving, and in many cases, they are more reliable than some brand-name hardware. We can now find dozens of vendors providing white box switches. These vendors come with different backgrounds and carry out different approaches in designing their hardware platforms. In OCP, we can see three clearly different types of vendors providing white box switches:

Microsoft updates Cortana for iOS with a fresh look

Microsoft gave its Cortana app for iOS a facelift Friday, replacing its old black and blue aesthetic with a new look that puts the assistant’s key features at users’ fingertips.The app now features Quick Actions, so that users can tap a couple buttons and get Cortana to create an alarm, set a reminder, or tell them a joke. That means users can get at key features without having to talk or type queries, and it also gives them a framework for what they can do with the app, without them having to discover it on their own.The virtual assistant market is a crowded one, between Cortana, Siri, Alexa and the Google Assistant all competing for users’ time and interest. Microsoft’s assistant is built deeply into PCs with Windows 10, but the company also needs to keep its apps for other mobile platforms up to date in order to meet users where they are.To read this article in full or to leave a comment, please click here

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