Redis® is an open-source key-value data store. Redis® stores data in RAM, so accessing the data is quite fast. Because of that Redis® is often used as a cache. This guide explains how to set up Redis® as a cache for WordPress websites to boost performance. Before you begin, you should: * Deploy [a fully updated](https://docs.vultr.com/how-to-update-a-vultr-cloud-server#how-to-update-debian--ubuntu) Ubuntu 20.04 server. * [Create a non-root user with sudo privileges](https://docs.vultr.com/how-to......