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The purpose of this blog is to put together all the articles that have helped us. It may help us again and someone else can also benefit from it. All the credits for included articles go to the original authors. We’ll try our best to include credits with every article, but if we miss someone, excuse us, since this site is not used for commercial purposes.

March 7, 2024
Agile vs Kanband
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Kanban VS Scrum: Which Agile Framework is Right For Your Project?

Two popular Agile frameworks that organizations often use are Kanban and Scrum. Both methodologies have their unique characteristics and benefits. Understanding the differences between Kanban and Scrum is essential to determine which is the right fit for your project.  We’ll discuss the details of Kanban and Scrum, highlighting their key […]
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December 29, 2017
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SPF, DKIM, DMARC Related Configuration for Google Apps Account

Configure SPF records Create a TXT record containing this text: v=spf1 include:_spf.google.com ~all. If you are sending email from your server (e.g. a web application sending emails through postfix server configured on your cloud), you need to add it’s IP address as well, like so, v=spf1 ip4:192.168.10.10 include:_spf.google.com ~all DKIM Related […]
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September 4, 2015
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Ubuntu – “node: No such file or directory” error on using express-generator

Issue: After you install express-generator on your Ubuntu machine and try to run it like express -h You may encounter an error saying “/usr/bin/env: node: No such file or directory” Solution: The issue is that the Node executable for Ubuntu is nodejs instead of node. So to get around this situation, […]
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June 14, 2015
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Uploading multiple files with Carrierwave in Rails 4

This post shows how to use carrierwave gem to upload multiple files in Rails 4 Let suppose the following scenario. We have multiple projects and each project can have multiple screenshots. In project.rb class Project < ActiveRecord::Base has_many :screenshots accepts_nested_attributes_for :screenshots, :allow_destroy => true end In screenshot.rb class Screenshot < ActiveRecord::Base […]
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June 14, 2015
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Using has_many with Nested Form in Rails 4

This post shows how to use field_for and accepts_nested_attributes_for to created nested form for has_many model Let suppose the following scenario. We have multiple projects and each project can have multiple screenshots. Following will be the definition of model classes. class Project < ActiveRecord::Base has_many :screenshots end class Screenshot < ActiveRecord::Base […]
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April 14, 2015
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Using Private key with PuTTY

This article is intended for the members of TeamDX. Following are the steps you need to take in order to log in to server using private key provided to you by your team lead.  Start PuTTY by double-clicking its executable file. PuTTY's initial window is the Session Category (navigate PuTTY's various categories, […]
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January 16, 2015
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Error installing debugger gem on ubuntu

I recently encountered error while bundle install. The issue was with debugger gem. Following is the error I was getting No source for ruby-1.9.3-p484 provided with debugger-ruby_core_source gem. extconf.rb failed After searching Google for answer, I found that this gem depends upon another one named "debugger-ruby_core_source" as specified in error. […]
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January 7, 2015
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500 error with rails application running in production via apache2 & passenger

I sometimes face 500 Internal Server Error when running Ruby on Rails application on Apache Passenger but the same application is working fine with webrick server. One of the following reasons are responsible for the issue. 1. Permission Issues Check permission of the files and directories of your project. It […]
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