Even today, when some cloud and hosting providers offer automated backups for VPS’s at a relatively low cost, you will do well to create your own backup strategy using your own tools in order to save some money and then perhaps use it to buy extra storage or get a bigger VPS. Once the installation completes, we will exclusively use sftp in various scenarios, both to back up and to restore the data. Our test environment consists of a CentOS 7 box (to be backed up) and a Debian 8 machine (backup server).
Let’s begin by creating the SSH keys in our CentOS box and transfer them to the Debian backup server.
The below commands assumes the sshd daemon is listening on port XXXXX in the Debian server.

To create the entropy needed for the creation of the keys, you can log on to the server via another terminal window and perform a few tasks or run some commands to generate entropy (otherwise you will have to wait for a long time for this part of the process to finish).
The string highlighted in yellow above is known as the public key ID, and is a requested argument to encrypt your files. The material in this site cannot be republished either online or offline, without our permission. When it comes to protecting and preserving precious data, it is best to go the extra mile and make sure you can depend on your backups if the need arises. In this article we will show you how to use a tool called Duplicity to backup and encrypt file and directories.

He works for a worldwide leading consumer product company and takes great pleasure in using FOSS tools to increase productivity in all areas of his daily work.

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