Python Network - SSH

SSH or Secure Socket Shell, is a network protocol that provides a secure way to access a remote computer. Secure Shell provides strong authentication and secure encrypted data communications between two computers connecting over an insecure network such as the Internet. SSH is widely used by network administrators for managing systems and applications remotely, allowing them to log in to another computer over a network, execute commands and move files from one computer to another.

Key Points

AS cloud servers become more affordable, SSH is the most commonly used tool to perform various tasks on cloud server. We need it for −

• Setup a web server for a client's website
• Deploy source code to a production server

In python SSH is implemented by using the python library called fabric. It can be used to issue commands remotely over SSH.

Example

In the below example we connect to a host and issue the command to identify the host type. We capture the result in and display it as a formatted text.

main.py

from fabric import Connection
result = Connection('xyz.com').run('uname -s')
msg = "Ran {.command!r} on {.connection.host}, got stdout:\n{.stdout}"
print(msg.format(result))

Output

When we run the above program, we get the following output −

Linux

This is a sample result which will depend on the server.