Spigot 1.16 help

Hello, I am trying to host a spigot 1.16 server and need some help figuring out how to access my server. I am using freenas. Is ftp or ssh enabled by default?

SFTP and SSH is enabled, however not for root (by default). You can use the mc account to access.

To set up a Spigot server, I had attempted and posted the steps I took here. The example is for another server, but the process is the same.