PostgreSQL (host)

Unit

Field	Value
Service	postgresql@16-main.service
Version	16
Listen	127.0.0.1:5432, ::1:5432
Auth	local peer / password
Data directory	default under /var/lib/postgresql/

Notes

• Not exposed on the public interface.
• Nextcloud’s compose file also runs container Postgres 16 with bind data at ~/nextcloud/db/. Confirm which engine a database actually uses before dump/restore.