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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Improving WordPress Performance

Recently I had the opportunity of working on improving the performance of a WordPress website for a customer. I will describe my experience in this blog post. Slow website loading times can distract your website visitors and discourage them from visiting your website again.

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