Apache Cassandra is an open-source NoSQL database engine used to store large amounts of data in a distributed architecture with dynamic replication. It delivers high performance, linear scalability, high availability, and fault tolerance. This article explains how to how to install Apache Cassandra on Ubuntu 20.04 server. * Deploy a [fully updated](https://docs.vultr.com/how-to-update-a-vultr-cloud-server#how-to-update-debian--ubuntu) Vultr Ubuntu 20.04 Server. * Create a non-root user with sudo......