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SFTP (SSH File Transfer Protocol) is a secure file protocol used to access, manage and transfer files over an encrypted SSH transport. When compared with the traditional FTP protocol, SFTP offers all the functionality of FTP, and it is easier to configure.

Nagios is one of the most popular open source monitoring system. 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.

Tomcat is an open source implementation of the Java Servlet, JavaServer Pages, Java Expression Language and Java WebSocket technologies. This tutorial covers the steps required to install Tomcat 9.0 on CentOS 7.

The tail command displays the last part (10 lines by default) of one or more files or piped data. It can be also used to monitor the file changes in real time. One of the most common use of the tail command is to watch and analyze logs and other files that change over time, usually combined with other tools like grep.

Atom is an open source cross-platform code editor developed by GitHub. It has a built-in package manager, embedded Git control, smart autocompletion, syntax highlighting and multiple panes. Under the hood Atom is a desktop application built on Electron using HTML, JavaScript, CSS, and Node.js.

phpMyAdmin is an open source PHP based tool for managing MySQL and MariaDB servers over a web-based interface. phpMyAdmin allows you to interact with MySQL databases, manage user accounts and privileges, execute SQL-statements, import and export data in a variety of data formats and much more.

GitLab is a web-based open source Git repository manager written in Ruby including wiki, issue management, code review, monitoring and continuous integration and deployment. It enables developers to build,deploy and run their applications. This tutorial covers the steps necessary for installing and configuring GitLab (CE) on a CentOS 7 system using the Omnibus packages.

Apache Maven is a free and 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 CentOS 7.

Loops are one of the fundamental concepts of programming languages. Loops are handy, if you want to run series of commands over and over again, until a condition situation is reached. In scripting languages such as Bash, loops are useful for automating repetitive tasks.

On Linux and UNIX operating systems you can use the mount command to attach (mount) file systems and removable devices such as USB flash drives at a particular mount point in the directory tree. The umount command detaches (unmounts) the mounted file system from the directory tree.

Nextcloud is an open source, self-hosted file share and collaboration platform, similar to Dropbox. It comes bundled with media player, calendar and contact management. Nextcloud is extensible via apps and has desktop and mobile clients for all major platforms.

Whether you want to access the Internet safely and securely while connected on an untrusty public Wi-Fi network, bypass Geo-restricted content or allow your coworkers to connect securely to your company network when working remotely, using a VPN is the best solution. A VPN allows you to connect to remote VPN servers, making your connection encrypted and secure and surf the web anonymously by keeping your traffic data private.

The touch command allows us to update the timestamps on existing files and directories as well as creating new, empty files.

Vagrant is an open source command line tool for building and managing virtual machine environments. In this tutorial we will walk you through installing Vagrant on CentOS 7 systems.

Deb is the installation package format used by all Debian based distributions. Deb packages can be installed and uninstalled using either the command line or the graphical package manager.

A symbolic link, also know as symlink or soft link, is a special type of file that points to another file or directory. In this guide, we will cover how to use the ln command to create symbolic links.

phpMyAdmin is an open source PHP based tool for managing MySQL and MariaDB servers over a web-based interface. phpMyAdmin allows you to interact with MySQL databases, manage user accounts and privileges, execute SQL-statements, import and export data in a variety of data formats and much more.

Django is a free and open source high-level Python web framework designed to help developers build secure, scalable and maintainable web applications. In this tutorial, we will be installing and configuring the latest stable version of Django on a CentOS 7 machine inside a Python virtual environment.

Odoo is the most popular all-in-one business software in the world. It offers a range of business applications including CRM, website, e-Commerce, billing, accounting, manufacturing, warehouse, project management, inventory and much more, all seamlessly integrated. In this tutorial, we’ll show you how to install Odoo 12 from source inside a Python virtual environment on a CentOS 7 machine.

There are times when you want to browse the Internet privately, access geo-restricted content or bypass any intermediate firewalls your network might be enforcing.