When troubleshooting system or application slowdown or misbehavior, one of the first things to check is the system memory usage. This article explains how to check RAM usage in Linux using several different commands. free Command # free is the most commonly used command for checking the memory usage of a Linux system. It displays
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How to Install Elasticsearch on Debian 10
Elasticsearch is a powerful open-source analytics and full-text search engine. It provides a distributed, multitenant-capable architecture which enables you to store, search and analyze large volumes of data faster. Elastic search is freely available under the Apache 2 license, which provides the most flexibility. In this tutorial we will show you how to install Elasticsearch
How to Install Jenkins on Ubuntu 20.04
Jenkins is an open-source automation server that can be used to easily set up continuous integration and continuous delivery (CI/CD) pipelines. Continuous integration (CI) is a DevOps practice in which team members regularly commit their code changes to the version control repository, after which automated builds and tests are run. Continuous delivery (CD) is a
How to Install TeamViewer on Ubuntu 20.04
TeamViewer is a popular cross-platform application and widely used for remote control, desktop sharing, remote meetings and file sharing between computers. In this tutorial we will explain how to install TeamViewer on Ubuntu 20.04. Prerequisites# Make sure you have logged in as root or user with sudo privileges. Installing TeamViewer on Ubuntu# TeamViewer is not
How to Count Files in Directory in Linux
Although not very often, there are times when you need to find out how many files are in a given directory. For example, if you run out of inodes on your Linux system, you’ll need to find which directory contains thousands or millions of files. In this article, we will show you several different ways
How to Check for Listening Ports in Linux (Ports in use)
While you facing network connectivity issues, the first thing is to check what ports are actually in use on your system and which application is listening on a specific port. In this tutorial described how to use netstat, ss and lsof commands to find out which services are listening on which ports. Listening Port# Port
Setting up a DevOps Pipeline in AWS
In this article, we will guide you through how to set up a DevOps pipeline in AWS. However, let’s start off with defining what DevOps actually is. In the past, application development was usually split between two teams – development and operations. The development team would write the code, test it, and then deliver it
How to Install Elasticsearch on CentOS 8
Elasticsearch is a powerful open-source analytics and full-text search engine. It provides a distributed, multitenant-capable architecture which enables you to store, search and analyze large volumes of data faster. Elastic search is freely available under the Apache 2 license, which provides the most flexibility. In this tutorial we will show you how to install Elasticsearch
How to Install Memcached on Ubuntu 20.04
Memcached is a free and open-source high-performance in-memory key-value data store. It is generally used to speed up applications by caching various objects from the results of API and database calls. This article shows how to install and configure Memcached on Ubuntu 20.04. Installing Memcached # The memcached package is included in the default Ubuntu
How to Install Apache Maven on Ubuntu 20.04
Apache Maven is a very useful open-source project management tool based on POM (project object model). Primarily, it is used to manage Java projects and manage a project’s build, reporting, and documentation. This tutorial show you how to install and configure Apache Maven on Ubuntu 20.04 LTS. Prerequisites# Make sure you are logged in as