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Tech Tips, Tricks & Trivia

by 'Anil' Radhakrishna
An architect's notes, experiments, discoveries and annotated bookmarks.

Search from over a hundred HOW TO articles, Tips and Tricks


This Week I Learned - Week #232

Saturday, September 16, 2017
This Week I Learned -

B-Series is a new Azure VM family that provides the lowest cost of any existing size with flexible CPU usage.

Map of Azure & AWS data centers

AWS Quick Start reference deployments, part of the AWS Architecture Center help you rapidly deploy fully functional software on the AWS Cloud, following AWS best practices for security and availability. An AWS CloudFormation template automates the deployment, and a deployment guide describes the architecture and implementation in detail. Quick Starts are modular and customizable; you can layer additional functionality on top or modify them for your own implementations.

JSON2Table can show JSON content as a HTML table and in treeview format.

json2html is an open source javascript library that uses JSON templates to convert JSON objects to HTML.

A Computer Science degree isn’t required for Google's software engineering or product manager roles.

Telugu ranks as the fifth-largest Indian language on Wikipedia with nearly 67,000 articles. It has been growing over the years since 2003, when the Telugu Wikipedia started.

* The majority of flu vaccines contain viruses which are already dead, so you can’t get the flu from them

Contrary to popular belief, stress does not influence a person’s chances of graying.

* According to Central Government statistics, one out of 89 children live with autism displaying symptoms that include poor eye contact, decreased social response, repetitive behaviours, lack of expected language and social development, and decreased non-verbal communication and gestures. While there is no cure for autism, known as a lifelong disorder, early intervention can improve the quality of life in these children, say medical experts - The Hindu

* In June, the RBI identified 12 major companies for insolvency proceedings, each owing over Rs 5,000 crores. Bhushan Steel, Electosteel Steel and Lanco Infratech headed the dirty dozen, owing a whopping Rs 1,75,000 crore (almost a quarter of all bad bank loans) - Swaminomics

* In the past three years, personal loans have grown at twice the rate of growth in personal disposable income, leading to a steady rise in household indebtedness. At the end of March this year, Indians owed Rs 25.2 lakh crore to banks and listed non-banking finance companies (NBFCs), up 65 per cent in the past three years - Rediff

* The Sardar Sarovar Dam has been inaugurated 56 years after its foundation was laid by then PM Jawaharlal Nehru.

* Backward Class (BC) communities are said to constitute about 50 per cent of the Telangana's population. According to sources, chief minister K Chandrasekhar Rao wants to set up a Most Backward Classes (MBC) finance corporation with a fund of  Rs 1000 crore - Times of India

* "Unlike the French aristocracy, which believed that the natural state of man is idleness, I think passionate work is essential to happiness. Instead of detaching oneself from work, Krishna advises us to act desirelessly, which means not to seek personal credit or reward from one’s work. When I am absorbed in passionate work, I find that my ego tends to disappear. Passionate, self-forgetting work is of high quality because you are not distracted by the ego. This is my recipe for making a life, and it is also the secret of happiness" - Gurcharan Das

‘Life isn’t about finding yourself, it is about creating yourself’ - George Bernard Shaw

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What drive letters should you use for your Azure VM Data Disks?

Saturday, September 09, 2017
On an Azure VM the SYSTEM disk is deployed on the C: drive.

The D: drive is temporary. This means that when you shut down a VM, anything you stored on that disk in your session would be lost. This D: drive could be used for things like page files.

By default the E: drive is used for the DVD drive by Azure.

The data disks on your VM start at drive letter F: and goes up from there (G:, H:, I:, etc.). This is where you would store data files.

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This Week I Learned - Week #231

Friday, September 08, 2017
This Week I Learned -

The Azure Portal may not tell you everything. RTFM - To convert an existing Azure Traffic Manager profile to geographic routing type, you first need to associate geographic regions to all its endpoints using the Azure Traffic Manager REST API before changing the routing type to geographic. If using portal, first delete the endpoints, change the routing method of the profile to geographic and then add the endpoints along with their geographic region mapping.

Traffic Manager is only eligible for use with App Services (formerly known as Azure Websites and Azure Mobile Services) at the 'Standard' level or above. If you downgrade your App Service to the Free or Basic tiers, it shows as 'stopped' in Traffic Manager

* Azure Traffic Manager can provide failovers under 10 seconds after an endpoint goes unhealthy

* You can view, add, edit and remove files to be hosted in Azure Web App using the Kudu service Dashboard & just the browser.

* PowerShell Module Browser can search all PowerShell modules and cmdlets from Microsoft

* Whether or not you take the Google Certified Mobile Web Specialist certification exam, the study guide [PDF] has a list of good mobile web app development topics to go through

* Sabeer Bhatia was twenty-six when he started Hotmail

* Bigbasket offers its search feature for 18,000 products in 7 Indian languages

* Under US federal law, foreign governments, companies and citizens are prohibited from spending money to influence American elections. Providing new evidence of Russian interference in the 2016 election, Facebook disclosed on Wednesday that it had identified more than $100,000 worth of divisive ads on hot-button issues purchased by a shadowy Russian company linked to the Kremlin - NY Times

* ...owing to the nature of machine-learning, all facial-recognition systems inevitably deal in probabilities. Google has explicitly turned its back on matching faces to identities, for fear of its misuse by undemocratic regimes. Other tech firms seem less picky. Amazon and Microsoft are both using their cloud services to offer face recognition; it is central to Facebook’s plans.

Raw Pressery cold-pressed juices have a shelf life of 21 days. Raw Pressery draws inspiration from organic, non-GMO, cold-pressed Suja Juice which contain ingredients like superherb, ashwagandha and turmeric. Cold-Pressured refers to the process by which fresh food products, such as juice, are preserved using High Pressure Processing (HPP) as opposed to high heat. HPP is a method of preserving packaged food products using extremely high pressure. Hydraulic fluid (normally water) is placed in a chamber and pressurized with a pump. This pressure is transmitted through the package into the food itself. This process extends the shelf life & helps to maintain the essential vitamins, minerals & enzymes in our organic cold-pressed juices and functional beverages.

* The construction industry is the second largest employment generator in India after agriculture.

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Azure Site Recovery vs other DR strategies

Tuesday, September 05, 2017
A comparison of Azure Site Recovery and other DR strategies from the Microsoft Ignite session "Migrate and disaster recover Azure workloads"

click on image for enlarged view

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This Week I Learned - Week #230

Sunday, September 03, 2017
This Week I Learned -

* Azure Container Instances are billed per second

Managed disk support for "Azure to Azure DR" scenario using Azure Site Recovery is currently not supported. Recovery points are generated every 5 minutes. On top of that, if you select the "latest (lowest RPO)" option during Test Failover or Failover, the RPO will be even lesser. Site Recovery takes advantage of the Azure network infrastructure that connects regions to keep RTO and RPO very low.

Web App Checklists to bookmark

CloudPassage provides an automation platform, delivered via software as a service, that improves security for private, public, and hybrid cloud computing environments.

US President Donald Trump wiped off close to $5.7 billion through a single tweet wiped from the stock value of Amazon for a brief period. The US President had tweeted on Wednesday that the company was ‘doing great damage to tax paying retailers’.

* Infosys founders together own about 12.75 per cent stake in Infosys. It has 19 $100M+ clients

* The sun is 400 times larger than the moon, but it also happens to be 400 times farther away, which to the observer on the ground means they are almost identical in size.

* The Global Assets Under Management (AUM) of Open-end Mutual Fund schemes exceeded US$ 37.1 trillion, across 100,494 schemes as on Dec 31, 2015. The US had over $17.7 trillion in AUM, while Europe had $12.7 trillion. Asia Pacific countries had $4.7 trillion, of which Australia, China and Japan accounted for $1.52 Trillion, $1.26 Trillion and $1.33 Trillion respectively. Brazil, had over $743 Billion in Mutual Fund Assets. India had Assets of $168 Billion

RuPay cards presently has over 36% of market share in Indian card payment scheme behind Visa which has over 50% of the market share. More than 20% of the transactions in India is done through RuPay cards in India today.

* Sunnis are the more dominant form of Islam – at least 80 per cent of Muslims worldwide. Some Sunni dominated countries include Saudi Arabia, Egypt, Turkey and Syria

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