Tag: Ubuntu

How to install Apache Cassandra on Ubuntu 22.04

In this article, we will see how to install Apache Cassandra on Ubuntu 22.04 step by step.

Apache Cassandra is a high-performance opensource NoSQL database engine that provides fault tolerance, linear scalability, and consistency across multiple nodes. Apache Cassandra is ideal in IoT applications where massive data is collected. It also comes in handy in social media analytics, messaging services, and retail applications.

Among the companies that make use of Apache Cassandra include Netflix, Facebook, Cisco, Hulu, Deloitte, Bosch, Twitter, and many more.

Install Apache Cassandra on Ubuntu 22.04

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How to install and configure Java on Ubuntu 22.04 Linux

In this article, we will see how to install and configure Java on Ubuntu 22.04 Linux step by step.

Java is one of the most popular programming languages and the JVM (Java’s virtual machine) is the run-time environment to run Java applications.

Verify java is installed or not on in Linux by running command.

java -verison
Command 'java' not found, but can be installed with:
sudo apt install openjdk-11-jre-headless  # version 11.0.17+8-1ubuntu2~22.04, or
sudo apt install default-jre              # version 2:1.11-72build2
sudo apt install openjdk-17-jre-headless  # version 17.0.5+8-2ubuntu1~22.04
sudo apt install openjdk-18-jre-headless  # version 18.0.2+9-2~22.04
sudo apt install openjdk-19-jre-headless  # version 19.0.1+10-1ubuntu1~22.04
sudo apt install openjdk-8-jre-headless   # version 8u352-ga-1~22.04

So Java is not installed.

Install and configure Java on Ubuntu 22.04 Linux

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How to install minikube on Ubuntu 22.04 LTS

In this article, we will how to install minikube on Ubuntu 22.04 LTS step by step.

minikube is a tool that lets you run Kubernetes locally. minikube runs a single-node Kubernetes cluster on your personal computer (including Windows, macOS and Linux PCs) so that you can try out Kubernetes, or for daily development work.

Prerequisites to install minikube:

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How to install Docker on Ubuntu 22.04 LTS

In this article, we will see How to install Docker on Ubuntu 22.04 LTS step by step.

Prerequisites to install Docker on Ubuntu:

OS Requirements:

To install Docker Engine, we need the 64-bit version of one of these Ubuntu versions:

Ubuntu Jammy 22.04 (LTS)
Ubuntu Impish 21.10
Ubuntu Focal 20.04 (LTS)
Ubuntu Bionic 18.04 (LTS)

Continue reading How to install Docker on Ubuntu 22.04 LTS

How to install MongoDB on Ubuntu 20.04

In this article, We will learn how to install MongoDB on Ubuntu 20.04 LTS step by step.

MongoDB is one of the most popular NoSQL databases, it is open source and freely available to download. It stores data in the form of flexible documents like JSON rather than the usual table style method found in SQL databases.

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How to install Docker on Ubuntu

In this article, we will see how to install Docker on Ubuntu.

1. Update the apt package index.

sudo apt-get update

2. Install packages to allow apt to use a repository over HTTPS.

sudo apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg-agent \
    software-properties-common

How to install Docker on Ubuntu

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PuTTY Fatal Error Network error: Connection refused Kali Linux

We have received error when connecting to Linux server using Putty client: PuTTY Fatal Error Network error: Connection refused Kali Linux. This error generally occurs if ssh service is down.


PuTTY Fatal Error
---------------------------
Network error: Connection refused
---------------------------
OK   
---------------------------

PuTTY Fatal Error Network error: Connection refused Kali Linux

Solution:
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