I’ve learned that I still have a lot to learn!

Hello Everyone, hope you are doing well! It has been ages that I haven’t uploaded any articles online.

Today, I would be teaching some of the basics of NIC data checksum that most of us get confused about.

What is TCP/UDP Checksum? Where can I find it?

Checksum determine the integrity of the data transmitted over a network. You can find it under NIC Card properties:

What is TCP/UDP?

AI could make the world a better place.

Hello Everyone! I hope you all are doing well during this pandemic and fighting for the cause, caring loved one and making the world a better place to live.

New tools and technologies are embedded into our daily lives, which drives to our futuristic vision.

Today, I was trying to understand how chatbot can be implemented to automate tasks in all the sectors during this pandemic time. Chatbot can be implemented in Hospitality, Medical Care, Pharmacy, Helpdesk, Troubleshoot IT issue, contact IT helpdesk.

IBM Watson is AI for business.

Watson helps organizations predict future outcomes, automate complex processes…

Learn! Learn! Learn!

Hello Everyone, hope you all are doing well during this pandemic situation.

Today, I bring an interesting topic that most of us listen in Security world.

NOTE: This is only for Education Purpose.

What is SQL Injection?

This is one the most web hacking techniques used to destroy your database and to hack useful information. Basically, we submit SQL like queries in the webpages.

To understand how it works, let’s get into the DEMO.


1. Kali Linux ( You can select your own flavor Parrot OS, etc.).
2. Burp Suite (https://portswigger.net/burp) — “It’s a proxy based…

Education is the moment from darkness to light

Hello Everyone, hope you all doing well!

Today I would like to get you all introduced to one of my favorite Infra monitoring tool. I started using it on Dockers and on my own machines/VMs on lab.

ManageEngine OpManager is a network monitoring tool. it allows network, server, network configuration, IP address, and other types of management to help in network traffic analysis.

Download the software from here:

Click Next

Whatever good things we build end up building us.

Today I will be walking you guys on how a software vulnerabilities are being performed through SIEM, one of the SIEM tools is an AlienVault which is an open source.

For newbies, this tutorial gives an overview on how the scan is performed.

AlienVault can be used to detect software vulnerabilities in web-applications. that can be used to detect vulnerabilities need to be rectified by the Cyber Security Analyst to ensure the environment is secure from exploits and potential data breaches.

Follow steps to download and install AlienVault in lab environment

Progress is never linear, never give up.

Kubernetes is developed by Google and it has been open sourced under Apache, and in simple terms it manages containers(Includes Third-Party tool). It is an orchestration tool.

Cloud vendors such as AWS, Azure and GCP are including Kubernetes as a service on their console, they are adding value by implementing advance features to meet business objectives.

AWS calls it as EKS ( Elastic Container Service for Kubernetes).
GCP calls it as GKE (Google Kubernetes Engine).
Azure calls it as AKE (Azure Kubernetes Engine).
OR we call it as K8’s (Kubernetes).

Why Kubernetes? Why…

Live as if you were to die tomorrow

Hello Everyone, hope you all are doing well! It’s been two months and I really miss Medium.

Today, I’m going to discuss basics concepts of RESTful APIs and let’s do lab. [NOTE: Docker version of RESTful API blog will be posted in upcoming blog]

What is RESTful API? Before that we need to understand what is an API?

API Stands for Application Programming Interface.

An API is predefined interface that other application can access data present in it. API are kind of doorways for software to perform CRUD operation.

What is RESTful?

If you do not like how things are, change them (Jim Rohn)

My experience on the latest Windows AMI Images in AWS was troublesome. I wonder AWS has not mentioned about this in any of their blogs/website.

Check this out…

Let me log in to the AWS Management console.

Removed my credentials information

Select EC2 Service, and click Launch Instances. Proceed with the default settings.

Dreams do there work when you do yours

What is Cloudera ?


Cloudera delivers an Enterprise Data Cloud for any data, anywhere, from the Edge to AI.

Cloudera is an easy to installation, configure, monitor and maintain. Cloudera Manager provides supports automation deployment.

Cloudera Manager helps in end to end monitoring of the cluster, configure alerts in the real time. You can manage nodes, services. You can a node or services in the maintenance mode. [ Purchase Enterprise version]

They are architect to work as Server-Agent model. …

Push yourself, because no one else is going to do it for you.

Today, I bring you a new free and open source automation tool by Red Hat called Ansible.

Source: https://upload.wikimedia.org/wikipedia/commons/2/24/Ansible_logo.svg

I kinda love this symbol; because any gamer would love it :-), without wasting time. Let’s dive into the concepts and practicals.


What can I do with Ansible? -> Manage and control multiple servers from single machine, it is very easy to learn and script it. Good!

Why do I need it? -> Oh! I’m doing multiple updates and repetitive tasks. I can leverage Ansible to perform those tasks…

Raghavendra Hiremath

WE BELIEVE IN FREE AND OPEN SOURCE. My mission is to constantly learn and share the knowledge I gain so that you can use it to empower you.

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