The Eco server tool will start automatically once the important server data has been loaded. Here, you can choose the important settings and options for your server. You can also choose settings for progress (experience, craft time, costs, etc.), meteor (start time of the meteor, impact date), or seed and size of the world. A detailed overview is provided by the official Eco Wiki.
The most important settings are the backup function and the server settings.
Configure server backup:
The Eco server’s backup function is activated by default and it is an important feature for saving the game in its current state. However, the backup copies will take up a lot space on your server as the game progresses, so you need to pay attention to your capacities. You can turn off the feature by going to the “Backup” tab inthe tool and changing the “Enabled” line to “False”. Alternatively, you can lower the maximum number of hourly, daily, and weekly backups by entering the appropriate values.