How to securely synchronize folders on two servers?

Question

linux

Hello.
Server A is the main, Server B is a replica.
I need one-way synchronization A -> B.
Now I use rsync, I would like to abandon it in favor of SFTP synchronization.
Who will tell you how to be?
Thank you.

Answer 1

Well, in principle, you can still git

Answer 2

I advise you to use rsync over ssh.
sudo rsync -e 'ssh -p 22' --rsync-path='sudo rsync' -varzHAX --numeric-ids --delete [email protected]:/A /mnt/B
The backupuser user must have the required rights. Example at 192.168.1.1: /etc/sudoers

Defaults:backupuser !requiretty
backupuser ALL=NOPASSWD: /usr/bin/rsync