I've gone through all the possible threads and answers and still I'm not sure how to achieve this. Is following scenario even possible in the first place?
I've ubuntu 16.04 server which has OpenVPN installed and running. I can connect to this VPN through Windows client. The server also hosts some files that I need an access to, and I would like to use FTP for time being (SFTP is better, I know). Can I make it so, that the FTP port is only accessible through my VPN connection?
Because I'm not sure and this same question has been asked hundreths of times, could someone point me in the right direction?