Installing latest version of Php

PHP is a popular programming language commonly used for building web based applications. Most Linux distributions provide PHP out of the box. However the version of PHP in most cases is not the current stable version.

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Preventing spam messages with Contact Form 7 WordPress plugin

Contact Form 7 is a plugin for WordPress that allows website visitors to contact website owners. It is one of the most popular WordPress plugins with over 5 million active installations.

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Upgrading MySQL server from version 5.6 to 8.0

The latest version of MySQL server currently is 8.03. To upgrade MySQL server from a previous version we need to ensure that we are upgrading from the last stable release. For example from version 5.7 to 8.0.

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Upgrading R from version 3.0 to 3.5

R is a free software package for statistical computing. It is part of most Linux distributions. However the latest version of R is not always available. To install the latest version of R we need to add the URL of a CRAN mirror to a file in /etc/apt/sources.list.d.

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Upgrading from Debian Jessie to Debian Stretch

Debian 9, also known as Debian Stretch is currently the latest stable version of the Debian operating system. It was released on 17th June 2017 as successor to Debian 8 also known as Debian Jessie.

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