Redis is a caching application that can be utilised by a number of CMS's to speed up your site, e.g. Magento or WordPress (via WP-Rocket). It's installed on all Nimbus servers but the service itself isn't enabled by default. This guide explains the steps to enable Redis on your server.
Steps
Firstly make sure you are connected to your server via SSH as the root user. Your servers root password can be found in the Nimbus client area under https://youraccount.nimbushosting.co.uk > Services > My Services > Click on your package and this will take you to the product info page.
Once you are connected then the commands to enable Redis are as follows:
To start the service
systemctl start redis-server
Setting Redis to start on boot
systemctl enable redis-server
Checking the status of the Redis service
systemctl status redis-server