To set up a new on-prem installation please follow the guides here: https://ftrack.zendesk.com/hc/en-us/articles/360015591557-Introduction-to-on-premise
If you are migrating from an existing classic on-prem installation, please see the following article: https://ftrack.zendesk.com/hc/en-us/articles/360009303718-Migrating-from-Centos-6