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Cron is a scheduling daemon that executes tasks at specified intervals. These tasks are called cron jobs and are mostly used to automate system maintenance or administration.
The time command is used to determine how long a given command takes to run. It is useful for testing the performance of your scripts and commands.
Laravel is an open-source PHP web application framework with expressive, elegant syntax. Laravel allows you to easily build scalable and flexible web applications, restful APIs and eCommerce solutions.
In this tutorial we will show you how to install Laravel on an Ubuntu 18.04 system. The same instructions apply for Ubuntu 16.04 and any Ubuntu based distribution, including Linux Mint, Kubuntu and Elementary OS.
Apache Maven is an open source project management and comprehension tool used primarily for Java projects. Maven uses a Project Object Model (POM) which is essentially a XML file containing information about the project, configuration details, the project’s dependencies, and so on. In this tutorial we will show you two different ways to install Apache Maven on Debian 9.
Magento is leading enterprise-class e-commerce platform built on open source technology combining powerful features with flexibility and user friendly interface. In this tutorial we will show you how to install Magento 2.3 on an Ubuntu 18.04 machine. We’ll be using Nginx as a web server, the latest PHP 7.2 and MySQL/MariaDB as a database server.
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 moved from the RAM to the swap space. This tutorial explains how to add a swap file on CentOS 7 systems.
In this tutorial, we will show you how to create users in Linux systems using the useradd command.
FTP (File Transfer Protocol) is a standard network protocol used to transfer files to and from a remote network. For more secure and faster data transfers, use SCP or SFTP. There are many open source FTP servers available for Linux. The most popular and widely used are PureFTPd, ProFTPD and vsftpd.
Anaconda is the most popular python data science and machine learning platform, used for large-scale data processing, predictive analytics and scientific computing. Anaconda distribution ships with more than 1,000 data packages, the conda command-line tool and with a desktop graphical user interface called Anaconda Navigator.
Nagios is one of the most popular open source monitoring systems. Nagios keeps an inventory of your entire IT infrastructure and ensures your networks, servers, applications, services, and processes are up and running. In case of failure or suboptimal performance Nagios will send notification alerts via various methods.
Redmine is one of the most popular open source project management and issue tracking software tools. It is cross-platform and cross-database and built on top of the Ruby on Rails framework. Redmine includes support for multiple projects, wikis, issue tracking system, forums, calendars, email notifications, and much more.
Redis is an open-source in-memory key-value data store. It can be used as a database, cache and message broker and supports various data structures such as Strings, Hashes, Lists, Sets, etc. Redis provides high availability via Redis Sentinel including monitoring, notifications Automatic failover. It also provides automatic partitioning across multiple Redis nodes with Redis Cluster.
In Linux, all files are associated with an owner and a group. The chown command is used to change the user and group ownership of a given file, directory or link.
TeamViewer is a cross-platform solution that can be used for remote control, desktop sharing and file transfer between computers. TeamViewer is proprietary computer software and it is not included in the Ubuntu repositories. This tutorial explains how to install TeamViewer on Ubuntu 18.04.
Apache Tomcat is an open source application server which supports Java Servlet, JavaServer Pages, Java Expression Language and Java WebSocket technologies. It is one of the most widely used application and web server in the world today. This tutorial will show you how to install Apache Tomcat 9.0 on Debian 9 and configure the Tomcat web management interface.
Gradle is an open source build automation system used primarily for Java projects. It combines the best features of Ant and Maven. Unlike its predecessors which use XML for scripting, Gradle uses Groovy, a dynamic, object-oriented programming language for the Java platform to define the project and build scripts.
Django is the most popular Python web framework designed to help developers build secure, scalable and maintainable web applications. Django can be installed system-wide or in a Python virtual environment using pip. Django packages are included in the official Debian repositories and can be installed using the apt package manager. This is the easiest method to install Django on Debian 9, but not as flexible as installing in a virtual environment. Also, the version included in the repositories is always several releases behind the latest version of Django.
Zabbix is one of the most popular open source monitoring software tools. Zabbix collects metrics from your networks devices, systems and applications and ensures they are up and running. In case of any issues Zabbix will send notification alerts via various methods.
Zabbix can be deployed for agent-based and agent-less monitoring. The Zabbix agent has a small footprint and can run on various platforms, including Linux, UNIX, macOS and Windows.
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 moved from the RAM to the swap space. This tutorial covers the steps necessary to add a swap file on Ubuntu 18.04 systems.
WordPress is the most popular open source blogging and CMS platform worldwide, powering a quarter of all websites on the internet today. It is based on PHP and MySQL and packs a ton of features that can be extended with free and premium plugins and themes. WordPress is the simplest way to create your online store, website, or blog.
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