How to Install Docker Compose on Ubuntu 20.04


Docker Compose is used to launch, execute, communicate, and close containers with a single coordinated command. It is used for defining and running multi-container Docker applications. Follow this step-by-step guide to install Docker Compose on…

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How to Check Java Version Installed on Linux


Need to check your Java version? Use one of these three methods to find the Java version installed on your system (Ubuntu, CentOS, or Debian).

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How To Install Apache ZooKeeper on Ubuntu


Monitor and manage group services on with ZooKeeper, a centralized coordination service that manages configuration information, naming, distributed synchronization, and provisioning. Configure ZooKeeper in standalone mode for evaluating,…

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How to Install ELK Stack (Elasticsearch, Logstash, and Kibana) on Ubuntu 18.04 / 20.04


Need to install the ELK stack to manage server log files on your CentOS 8? Follow this step-by-step guide and set up each layer of the stack - Elasticsearch, Logstash, and Kibana.

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APT vs APT-GET: What’s the Difference?


Since Linux introduced the apt command line tool with the Ubuntu 16.04 release, many users wondered what the difference between apt and apt-get is. Learn why the apt command was created, when to use it and how it differs from the apt-get command.

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How to Install Apache Hive on Ubuntu


This tutorial shows you how to install, configure, and perform basic commands in Apache Hive. Improve your Hadoop cluster by allowing it to communicate with relational databases conveniently.

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How to Fix Could not get lock /var/lib/dpkg/lock Error on Ubuntu


This tutorial lists the steps that will help you fix the E: Could not get lock /var/lib/dpkg/lock error you may get on Ubuntu while trying to install an application. In some cases waiting helps, but in other, you may have to try one of the methods…

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How to Install Ubuntu 20.04 LTS Desktop (Focal Fossa)


This article helps you install Ubuntu 20.04 on your machine. The latest Ubuntu Focal Fossa was released on April 23, 2020 and is a LTS release. The release will receive support and updates until April 2025.

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How to Install Hadoop on Ubuntu 18.04 or 20.04


This detailed guide shows you how to download and install Hadoop on a Ubuntu machine. It also contains all the configuration files you need to set up Hadoop in a single-node cluster. Find out how to access and manage your new cluster using a…

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How to Upgrade to Ubuntu 20.04


Ubuntu 20.04 (Focal Fossa) is the newest Ubuntu LTS release. You can upgrade to the latest release from an existing 18.04 or 19.10 system in a couple of simple steps.

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