Virtual Private Cloud is virtual as it is built on the top of public cloud. It is private as there is limited number of users access to the actual physical hardware behind. It is a cost saving option than private cloud. We are trying to explain what is virtual private cloud (VPC) in simple terms. Those who are not technical persons, they can read what is cloud computing in simple terms if concept … [Read more...]
Installing Apache Airflow On Ubuntu, CentOS Cloud Server
Apache Airflow possibly needs a small introduction. It is basically a usable part for managing servers running Big Data tools. Airflow scheduler executes tasks on an array of workers while following the specified dependencies. There is command line utilities. Similar technology is behind Luigi, Azkaban, Oozie etc. Luigi is simpler in scope than Apache Airflow. Here are the steps for installing … [Read more...]
DC Motor Speed Controller (PWM) Buying Guide
These days cheap China PCB circuits with knobs are sold as LED Dimmer, Voltage Regulator, Motor Speed Controller. Here is DC Motor Speed Controller (PWM) buying guide for understanding. If you do not understand what is PWM - that is Pulse-width Modulation, you need to watch our Arduino guide for DC motor control which has a video. In that video, we had way to input 0 to 255 values to control the … [Read more...]
Real-time Big Data Analytics in Health Care Using Tools From IBM
The goal of this article is to provide the readers a basic technical understanding for big data applications in the health care system as well as provide information to develop or integrate various technologies with definite possible positive effects as return. This article, Real-time Big Data Analytics in Health Care Using Tools From IBM, does not cover the other areas of application of Big … [Read more...]
DIY Benchtop Power Supply (ATX) : List of Needed Components
In previous articles we introduced to practical work on how we can use DIY benchtop power supply, we talked about various types switches and various types of fuses used in electrical and electronics. Our target is to help the newbie who are not used with electrical, electronics, have less budget but want to learn electronics works. I talked about what is -5V like negative voltage. Those previous … [Read more...]
How They Make Huge Money From Blog
You heard that many peoples these days earn huge money from web and showbiz it. How They Make Huge Money From Blog? They write content like this article which all may read, use affiliate links & shout that is called blog. That is we spam with very low CPC AdSense. That showbiz is a marketing itself. There are very few who ever could become Darren Rowse and knowledge of Darren Rowse is … [Read more...]
Browser Based User Interface For Git Repositories
We commonly need a light option which opens a basic webpage on localhost. There are actually many browser based user interface for git repositories. Common reasons to avoid these are need of installation of too many packages, consumption of huge RAM etc. However, we are talking about quite basic option which is inbuilt present with git, too basic and another option which is slightly good looking … [Read more...]
What is Negative DC Voltage, Like -5 Volt?
Few weeks ago, we were discussing about building ATX DIY bench power supply - in that way, we can use or convert Computer Power Supply to breadboard power supply with stable, regulated voltage. Before explanation, for that DIY work - as computer's power supply is a ready to use solution for computer board, that negative DC Voltage, like -5 Volt are present. You will use only the positive DC … [Read more...]
How To Create WordPress Blog At Low Budget Using Cloud Services
You will find hundreds of dishonest blogs who are affiliates of Bluehost, Hostgator, Namecheap (to name a few) who has guides with titles like How To Create Your WordPress Blog with ABC Hosting. They are selling you overpriced shared server with less control. With time, using cloud server, virtual server has been just easy and cheap. Here is how to create WordPress blog at low budget using cloud … [Read more...]
Mistakes To Avoid While Migrating Applications To The Cloud
I noticed that one cunning website made our 4 years old Migrating Applications to the Cloud a new article in new form with fragments of sentences as sub headers! It feels beautifully odd to read such article. As in this 4 years I learned, experienced more, my idea, opinions, depth has changed. As such, number of mushrooming startup companies all over the earth is huge with over 90% failure rate. … [Read more...]
Apache Solr vs. Elasticsearch For WordPress Search
We have shown as guide how to install Apache Solr, you will likely to on some cloud server instance for testing/dev purpose. Elasticsearch as such we shown to install with Hadoop. Apache Solr vs. Elasticsearch for WordPress search is a complicated topic as the number of plugin is a matter which we need to consider. Elasticsearch basically packaged by Elastic company. Apache Solr is a direct … [Read more...]