CODEWITHSUNDEEP
pythonlinuxwindowsssh
Alex
Alex

Reputation: 44405

How can I execute a command on a remote Linux/Windows machine from a Linux/Windows machine using python?

I have two machines, A and B. Both machines can be either Windows or Linux machines, but - for simplicity - I know beforehand which is which. I also know a username and a password for the remote machine B (no other authentication method). So I have four possible combinations: 

A=Windows  B=Windows
A=Windows  B=Linux
A=Linux    B=Windows
A=Linux    B=Linux

I am looking for a small python script (or better: standard library) with which it is possible to execute a remote command on B from A. To be precise: On machine A I start a python script to run some command cmd on the remote machine B. Is there a generic way to do so in python?

For the Linux->Linux combination I could think using ssh for example and subprocess, but I probably run into problems with the username/password authentication.

For the Windows->Windows combination there is a tool called psservice which I already have been using (together with subprocess).

Any idea how to solve this problem in a most pythonic way? Does not need to be one function, it can be implemented in four different ways. And, if possible, without the use of third-party libraries (which is somewhat inconsistent, as psservice is already a third-party library I am using...).

Upvotes: 2

Views: 3241

Answers (2)

BartRising
BartRising

Reputation: 11

Try paramiko. I am using it and it is very simple to use.

EDIT 1

host='IP'
username='user'
password='password'

ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())

ssh.connect(host, username, password)

stdin, stdout, stderr = ssh.exec_command("pwd")
stdout.read()
ssh.close()

EDIT 2:

ssh = paramiko.SSHClient()

ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(host, username=user, password=password)

stdin, stdout, stderr = ssh.exec_command('pwd')

stdout.read()
ssh.close()

EDIT 3 Here also a solution using private/public keys:

key = paramiko.RSAKey.from_private_key_file(keyDest, keyPass)
ssh = paramiko.SSHClient()

ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())

ssh.connect(host, username=user, pkey=key)

stdin, stdout, stderr = ssh.exec_command('pwd')
stdout.read()
ssh.close()

Both, EDIT 1 and EDIT 3 works fine in my script..

Upvotes: 1

Corey Goldberg
Corey Goldberg

Reputation: 60644

I suggest using ssh/sftp, via the paramiko library.

All major ciphers and hash methods are supported. SFTP client and server mode are both supported too.

And it is cross-platform.

Upvotes: 1

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