Add SFTP to Network Storage

Hello as title say, i need sftp storage support so that i can mount storage on my server that is on internet and use that as local i have try with cifs and nfs but i cant get it to work over internet

Good thing. They are not supposed to be used on public networks. If you have exposed your cifs or nfs network to the internet, stop it. Seriously. Now!

Thay are not, since its not working, so no need to use it