Technical Solution

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| 4 min read
Amazon S3 provides API for multipart upload of large files. Multipart upload allows you to upload a large object as a set of small parts/portion of the object's data. You can upload these small object parts independently. If transmission of any part does not succeed, you can retransmit it without affecting other parts. Amazon S3 combines all the parts and make a single object after all the parts are uploaded.
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| 5 min read
OpenMeeting is an open-source project from Apache. It is a web application suitable for video conferencing, instant messaging, whiteboard, collaborative document editing, etc. The main requirement of an open meeting is Oracle Java. OpenMeeting uses a Red5 streaming server for remoting and streaming. The open meeting is an open-source solution for institutions/organizations that want to keep the conferences private and within their parameter.
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| 2 min read
The client has a large volume of content namely stock market news for different companies. The client site is integrated with multiple third-party systems where real-time news articles are aggregated via custom API integrations. The information thus received is sent as the content of the bulk subscription emails for the different users real-time, daily, and weekly. The issue or the problem was with the emails sent to users who are subscribed to a watch-list. A watch-list is a set of companies that the user is interested in so that emails will be sent in constant intervals (daily or weekly) with the news of these companies. These watch-list emails could contain hundreds of content titles and other data. But the issue was Gmail clip’s emails that have size in excess of 102 Kb.
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| 4 min read
Youtube does not allow audio files to be uploaded. However, you can easily convert any audio file into a video file using the given audio file and a fixed image as a background. The following works on Ubuntu and any variants of GNU/Linux. For converting a single mp3 file you can use the following. ffmpeg -v quiet -i "picture.jpg" -i input.mp3 -shortest -acodec copy output.mp4; done For converting a batch of files in a folder you can use the following
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| 5 min read
The application developed is used to find the best possible participant (household member) from a particular house during the survey of Non-Communicable Disease Monitoring and Verbal Autopsy. An ODK collect application is used for collecting information from people by filling the forms/tables during the survey and is saved as a .xml file inside the ODK collect. The collected information is sent to the NCD Survey application to process and find out the participant using KISH algorithm and return the result to the ODK collect.
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| 3 min read
Drush is a command-line shell for Drupal that enables you to perform many website maintenance tasks and administrative tasks from the terminal instead of using the Drupal administrative interface. Drush aliases allow you to run Drush commands on your local server but actually, the command executes on a remote server. This is a real-time saver while working locally and you want to do something on the remote server.
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| 2 min read
The article Introduction to iContact API describes a small introduction for iContact. Actually the data passed to iContact is in JSON format or in XML format. Mainly contact information and emails are passed to iContact. Data are passed to iContact in the following format.
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| 2 min read
Open Data Kit (ODK) is an open-source suite of tools that helps to Build survey form, Collect data on a mobile device and send it to a server and Aggregate the collected data on a server and extract it in useful formats. ODK Aggregate can be deployed on Google's App Engine, by creating google account. ODK Aggregate can also be deployed locally on a Tomcat server backed with a MySQL or PostgreSQL database server. Steps to setup ODK Aggregate in our server,
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| 3 min read
If you are looking to move your website from an http protocol to https protocol then you don't necessarily have to go for a paid SSL certificate. You could use the certificate provided by Let's Encrypt, which is a valid certifying authority. Here is a high level outline of what you should do to set up https on your webserver. We have documented how you should do it for nginx but a similar approach should work for other webservers as well.
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| 4 min read
According to a recent British government research, two third of large UK businesses are hit by cyber breach or attacks in the last year 1. The British government is urging business to protect themselves against cyber attacks. Cybersecurity measures can be to a large extent handled proactively with a well mapped out strategy that is reviewed continuously.
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| 3 min read
For those who are new to the Linux Operating system (an open-source and mostly POSIX-compliant operating system modeled on UNIX, assembled under free and open-source software development model), may found difficulty in navigate to directories via Linux terminal. You can install a nautilus-open-terminal to open the directory in the terminal if you are using Nautilus, which is the default file manager. To install nautilus-open-terminal, follow the steps below.
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| 2 min read
OpenMeeting is an open-source and independent alternative for Google Hangouts. It allows video/audio conference, collaborative editing, screen sharing, instant messaging, etc. OpenMeeting community provides plugins for integrating to common platforms like Moodle, Sakai, Jira, Joomla, Bitrix, Confluence, SugarCRM, Redmine. Unfortunately, the Drupal plugin for open meetings is not open-source. A good news is, OpenMeeting provides a SOAP API for integrating OpenMeeting with other platforms. I will explain how to create a new conference via OpenMeeting's SOAP API.