Sending emails using Apache Nifi

Apache Nifi, an awesome open-source tool from the Apache Software Foundation for implementation of data routing, transformation, and system mediation logic. For the purpose of smooth handling of data, this tool provides a set of processor, each designed for a dedicated task. In this post, we will see how one can send email to others using some processors provided by Apache Nifi. Follow for more detailed steps….

Securing Nifi with firewalld

In our previous post, we have learned how to secure Apache Nifi with Google’s OAuth2. In that post we saw, how user can be authenticated via Google’s OAuth client ID.

In this post, we will see how the outside user can be blocked permanently from accessing Apache Nifi’s UI. Here outside user means, the user who is accessing UI from different machine. Follow for more detailed steps….

Integrating Apache Nifi with Azure Storage

Apache Nifi, a nice tool for handling data with data pipeline approach. On the other hand, Azure Blob storage is Microsoft’s object storage solution for the cloud, which is optimized for storing massive amounts of unstructured data. Unstructured data is data that doesn’t adhere to a particular data model or definition, such as text or binary data. In this post, we will see how to use Apache Nifi to handle the files (uploading, downloading, and deleting) in Azure blob storage. Check out this for detailed steps…

Securing NiFi with Google’s OAuth 2.0 provider

Apache Nifi, a nice tool for handling data with data pipeline approach. But by default, this is not secure anyone with the IP and port can access your data data and potentially damage the data. In this post, we will see how to secure Apache Nifi with Google’s OAuth2.0 provider. Check out this for detailed steps…

Ansible: Installation and Configuration

Ansible is an open-source software provisioning, configuration management, and application deployment tool. It runs on many Unix-like systems, and can configure both Unix-like systems as well as Microsoft Windows. Before proceeding for the installation, it is necessary to get yourself comfortable with basic knowledge.

Ansible Wikipedia:
Official Documentation:

Click here to proceed for quick guied on Installation and configuration

Installation of Cloudify CLI on Ubuntu 14.04 for service deployment using TOSCA standard

Before moving towards installation of Cloudify, it is recommended to obtain the basic concept of Cloudify and TOSCA standard.  In this post we will see how to install Cloudify CLI, through which we can deploy, scale and monitor the different cloud service. For better understanding lets install this in local machine. The basic steps can be refereed and extended for actual cloud environment.

The steps are as follows: <read more…>

Working with Cloudify and ARIA TOSCA – Beginner

TOSCA is a standard that enhance the portability and operational management of cloud and other types of applications and services across the entire life-cycle. On the other hand, Cloudify is an open source cloud orchestration framework and it Domain Specific Language is based on TOSCA standard. Click here to read in more detail.

What is Fat Tree and how to construct it in 4-steps ?

Fat tree network topology looks like a tree topology like below example. In tree topology, we have same terminologies like Root, parent, child etc. This is mainly used to connect a large number of physical servers/ computers in a large data center. Continue reading…

Cloud computing for layman

Before digging to the concept of cloud computing, Let’s see how we consume electricity. Basically in every region, some companies/ organizations are providing electricity to every house. Electricity provider uses Copper or Aluminium wire to provide electricity to our houses. In addition to that, the external electric meter is attached in every house to monitor the amount of electric power we are consuming. Continue reading…

Virtualization: The technology behind cloud

Virtualization is the dominant technology used to set up cloud environment. In traditional approach, without using virtualization technology, only one OS can be installed onto one physical machine. However, using virtualization technology, multiple machines can be created, called Virtual machines (VMs) or virtual server. Continue reading…