PostgreSQL (postgres or pg) is an amazing open source relational database that provides the SQL DSL for interacting with data. Installation is a breeze with any package manager, packages to grab: postgresql and postgresql-common: core server postgresql-client-common and postgresql-client: client libs and binaries postgresql-contrib: useful bolt on modules Once installed, is managed as a daemon by systemd. $ sudo systemctl start postgresql $ sudo systemctl stop postgresql $ sudo systemctl restart postgresql $ sudo systemctl reload postgresql $ sudo systemctl status postgresql Core Concepts Configuration Depends on distro, generally somewhere like /etc/postgresql/11/main.