Learning how to use SSH and SCP

Back in the 1990s, it was a pretty natural thing to use the Telnet, rlogin, and FTP protocols. Come to think of it, using (anonymous) FTP is still done a lot. Bearing in mind that most local networks in the 1990s were based around network hubs (not switches) and the fact that all of these protocols are plain-text protocols that are easy to eavesdrop on via network sniffers, it really isn't all that strange that we're not using these devices and/or protocols as much anymore. As book authors, we haven't heard of anyone using rlogin since the late 1990s, although Telnet is still widely used to configure network devices (mostly switches and routers). This is the reason why SSH was developed (as a Telnet/rlogin replacement), and, along with SSH, SCP was developed (as a replacement for FTP). To put things into perspective, the first version of SSH was released in the mid-1990s. Let's see how it works.

Getting ready

We just need one...