There is a white IP on the Yota modem and Upvel Wi-Fi router, how to organize access from outside?

Question

network hardware

There is a white IP on the Yota modem and Upvel Wi-Fi router, how to organize access from the outside to the printer (files in a shared folder, or 1C)?

Answer 1

The terminal server is the best. Everything else is either not safe or crooked or will not really work.
Synchronize the shared folder via dropbox's similar service, there is no need to climb it somewhere by modem.