In this tutorial, we will cover SSH port forwarding in Linux. This is a function of the SSH utility that Linux administrators use to create encrypted and secure relays across different systems.
SSH port forwarding, also called SSH tunneling, is used to create a secure connection between two or more systems. Applications can then use these tunnels to transmit data.
Source: SSH port forwarding (tunneling) in Linux – Like Geeks
Like most commands on Linux, SSH can be used with input/output redirection via | (Unix Pipe). SSH can be used with this pipeline too. The basic concept here is understanding how the Unix pipeline works.
When you understand the way pipes work, you can get seriously creative. This article covers what happens when you combine Unix pipes and SSH. It should be noted that since Unix pipes can be just about anything, there are no doubt going to be commands not on this list would also be useful.
NOTE: Among other things, this article shows how to do remote hard drive backup and restoration, by creating an image (.img file) of a hard drive on a remote system, assuming that you have sufficient space on the remote backup drive for the image file.
Source: How to Use SSH Pipes on Linux
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