Ubuntu

Introduction> Introduction # Postfix is a popular open-source Mail Transfer Agent (MTA) that can be used to route and deliver email on a Linux system. It is estimated that around 25% of public mail servers on the internet run Postfix.

Introduction> Introduction # An indispensable tool in modern software development is some kind of version control system. Version control systems allow you to keep track of your software at the source level.

Introduction> Introduction # Databases grow over time, sometimes outgrowing the space on their original file system. You can also run into I/O contention when they’re located on the same partition as the rest of the operating system.

Introduction> Introduction # Python is a popular command processor available on Linux by default. We have previously covered how to install Nagios monitoring server on Ubuntu 12.10 x64. This time, we will expand on this idea and create Nagios plugins using Python.

Introduction> Introduction # Graphite is a graphing library that allows you to visualize different kinds of data in a flexible and powerful way. It graphs data sent to it by other statistics collecting applications.

Introduction> Introduction # Want to access the Internet safely and securely from your smartphone or laptop when connected to an untrusted network such as the WiFi of a hotel or coffee shop?

Introduction> Introduction # The Ubuntu operating system’s latest Long Term Support (LTS) release, Ubuntu 18.04 (Bionic Beaver), was released on April 26, 2018. This guide will explain how to upgrade an Ubuntu system of version 16.

Introduction> Introduction # Ruby on Rails uses sqlite3 as its default database, which works great in many cases, but may not be sufficient for your application. If your application requires the scalability, centralization, and control (or any other feature) that is provided by a client/server SQL database, such as PostgreSQL or MySQL, you will need to perform a few additional steps to get it up and running.

Status: Deprecated> Status: Deprecated # This article covers a version of Ubuntu that is no longer supported. If you are currently operate a server running Ubuntu 12.04, we highly recommend upgrading or migrating to a supported version of Ubuntu:

Introduction> Introduction # Django is a flexible framework for quickly creating Python applications. By default, Django applications are configured to store data into a lightweight SQLite database file. While this works well under some loads, a more traditional DBMS can improve performance in production.

Introduction> Introduction # In this tutorial, we will teach you how to use HAProxy as a layer 7 load balancer to serve multiple applications from a single domain name or IP address.

Introduction> Introduction # Hadoop is a Java-based programming framework that supports the processing and storage of extremely large datasets on a cluster of inexpensive machines. It was the first major open source project in the big data playing field and is sponsored by the Apache Software Foundation.

The author selected the COVID-19 Relief Fund to receive a donation as part of the Write for DOnations program. Introduction> Introduction # At some point, you may find yourself on a network that is insecure or has an overly restrictive firewall and you’ll want to make sure no one is watching your traffic.

Introduction> Introduction # On Ubuntu, by default, the Nginx web server stores its documents in /var/www/html, which is typically located on the root filesystem with the rest of the operating system.

Status: Deprecated> Status: Deprecated # This article covers a version of Ubuntu that is no longer supported. If you are currently operate a server running Ubuntu 12.04, we highly recommend upgrading or migrating to a supported version of Ubuntu:

Introduction> Introduction # Implementing a firewall is an important step in securing your server. A large part of that is deciding on the individual rules and policies that will enforce traffic restrictions to your network.

Introduction> Introduction # MySQL is an open-source database management system, commonly installed as part of the popular LAMP (Linux, Apache, MySQL, PHP/Python/Perl) stack. It uses a relational database and SQL (Structured Query Language) to manage its data.

Introduction> Introduction # When you are ready to deploy your Ruby on Rails application, there are many valid setups to consider. This tutorial will help you deploy the production environment of your Ruby on Rails application, with PostgreSQL as the database, using Unicorn and Nginx on Ubuntu 14.

Introduction> Introduction # WordPress is a popular and powerful CMS (content management system) platform. Its popularity can bring unwanted attention in the form of malicious traffic specially targeted at a WordPress site.

Introduction> Introduction # Jenkins is an open source automation server intended to automate repetitive technical tasks involved in the continuous integration and delivery of software. Jenkins is Java-based and can be installed from Ubuntu packages or by downloading and running its Web application ARchive (WAR) file — a collection of files that make up a complete web application which is intended to be run on a server.