OrientDB is a next-gen multi-model open source NoSQL DBMS. With support for multiple data models, OrientDB can provide more functionality and flexibility in a scalable, high-performance operational database. In this tutorial, I will demonstrate how to install OrientDB Community Edition on a CentOS 7 server instance. - A Vultr CentOS 7 server instance with sufficient memory. 2GB or more of memory recommended. Say its IP address is `203.0.113.1`. - You have logged into the server instance as a [su......