Improve the way you work with Secure Shell

Safety First

© Lead Image © Maksym Yemelyanov,

© Lead Image © Maksym Yemelyanov,

Article from Issue 197/2017

Many Linux users employ Secure Shell to log in remotely and work as if on a local machine. But SSH can do even more – the application will send commands, route other TCP connections through an encrypted tunnel, and provide multiplexing support.

The man pages for the OpenSSH tool [1] read like novels. Most users know only a fraction of the options, and this article, too, is restricted to just a few features. It provides tips on SSH multiplexing, tunneling, and various configuration files.

On My Mark!

One of the oldest SSH tricks is to define a command that SSH runs at the opposite end when executed; this saves you time and typing. The output appears in the local terminal:

<heike@home:~$> ssh pwd


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