Java is one of the most popular programming languages used to build different types of applications and systems. In this tutorial, we will explain how to install one or more…
Centos/Redhat
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This tutorial demonstrates how to set or change the timezone on Centos8 from the command line. Although, those instructions can be applied also on Centos7. Prerequisites You’ll need to be…
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Gradle is a general-purpose build tool used primarily for Java projects. It combines the best features of Ant and Maven. Gradle uses Groovy instead of using XML for scripting. In…
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Centos/RedhatDatabasesLinux
How to Install and Use PostgreSQL on CentOS 8
by Lotfi Waderni May 2, 2020PostgreSQL is a powerful, open source object-relational database system ( ORDBMS ). Unlike other relational database systems, PostgreSQL allows users to create unique operators, complex data types, aggregate functions, data…
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Swap is a space on a disk that is used when the amount of physical RAM memory is full. When a Linux system runs out of RAM, inactive pages are…
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AnsibleAnsible Tower / AWXAutomation ToolCentos/RedhatDevOpsLinux
How To Install Ansible Tower on CentOS / RHEL
by Lotfi Waderni July 10, 2019Ansible Tower, AWX is a web-based solution that makes Ansible even more easy to use for IT teams of all kinds. It’s designed to be the hub for all of…
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Centos/RedhatDevOpsDockerLinuxUbuntu
Docker Tutorial Series, Part 2: How To Install Docker CE
by Lotfi Waderni May 28, 2019In the second part of our Docker tutorial series, we’ll go through the necessary steps to installing Docker CE (Community Edition) on CentOS 7/ RHEL 7 and Ubuntu 18.04 LTS…
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Centos/RedhatDatabasesLinuxUbuntu
How to enable the slow query log in MySQL/ MariaDB Server
by Lotfi Waderni April 9, 2019When you are troubleshooting, and you want to determine which database queries take a long time to run, slow queries can affect database performance and overall server performance. The slow…
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Centos/RedhatDevOpsLinux
How To Install Latest Version of Git on CentOS 7 / RHEL 7
by Lotfi Waderni March 5, 2019Git provides support for non-linear, distributed development, allowing multiple contributors to work on a project simultaneously. Git was designed and developed by Linus Torvalds for Linux kernel development. In addition,…
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Centos/RedhatDevOpsJenkinsLinuxUbuntu
How to Add a new Slave Node to Jenkins
by Lotfi Waderni March 4, 2019Jenkins is an open source, Java-based automation server that offers an easy way to set up a continuous integration and continuous delivery (CI/CD) pipeline. Continuous Integration (CI) is the process…