portmapper exposed on Hetzner machine

We have received a report of an exposed portmapper port on at least one of our machines. This should be remediated, although it needs checking to ensure it isn't required for backup services on the machine. first.

Start by identifying the affected Hetzner machine and checking whether its portmapper port is required by backup services. Review the machine's current configuration and determine how the exposed port can be remediated without disrupting backups. Done means the exposure is removed and backup requirements remain satisfied.

Written by the indexing model from the issue text.