How to ssh connect through python Paramiko with ppk public key

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i'm using Paramiko to connect through ssh to a server.

Basic authentication works well, but i can't understand how to connect with public key.

When i connect with putty, the server tell me this:

Using username "root".
Authenticating with public key "rsa-key@ddddd.com"
Passphrase for key "rsa-key@ddddd.com": [i've inserted the passphrase here]
Last login: Mon Dec  5 09:25:18 2011 from ...

I connect to it with this ppk file:

PuTTY-User-Key-File-2: ssh-rsa
Encryption: aes256-cbc
Comment: rsa-key@dddd.com
Public-Lines: 4
[4 lines key]
Private-Lines: 8
[8 lines key]
Private-MAC: [hash]

With basic auth the error i get (from the log) is:

DEB [20111205-09:48:44.328] thr=1   paramiko.transport: userauth is OK
DEB [20111205-09:48:44.927] thr=1   paramiko.transport: Authentication type (password) not permitted.
DEB [20111205-09:48:44.927] thr=1   paramiko.transport: Allowed methods: ['publickey', 'gssapi-with-mic']

I've tried to include that ppk file and set to auth_public_key, but didn't work.

Can you help me?


Ok @Adam and @Kimvais were right, paramiko cannot parse .ppk files.

So the way to go (thanks to @JimB too) is to convert .ppk file to openssh private key format; this can be achieved using Puttygen as described here.

Then it's very simple getting connected with it:

import paramiko
ssh = paramiko.SSHClient()

ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())

ssh.connect('<hostname>', username='<username>', password='<password>', key_filename='<path/to/openssh-private-key-file>')

stdin, stdout, stderr = ssh.exec_command('ls')
print stdout.readlines()
ssh.close()

Paramiko example using private key · GitHub, The exact procedure for connecting to a ssh server with key are: ?? folder of python script put private key generated by puttygen exported as OpenSSH key Questions: i’m using Paramiko to connect through ssh to a server. Basic authentication works well, but i can’t understand how to connect with public key. When i connect with putty, the server tell me this: Using username "root".


For me I doing this:

import paramiko
hostname = 'my hostname or IP' 
myuser   = 'the user to ssh connect'
mySSHK   = '/path/to/sshkey.pub'
sshcon   = paramiko.SSHClient()  # will create the object
sshcon.set_missing_host_key_policy(paramiko.AutoAddPolicy()) # no known_hosts error
sshcon.connect(hostname, username=myuser, key_filename=mySSHK) # no passwd needed

works for me pretty ok

How to ssh connect through python Paramiko with public key , im using Paramiko to connect through ssh to a serverBasic authentication works well but i cant understand how to connect with public key When the client connects to the remote server using the public key, the server checks for it and sends an encrypted message which can only be decrypted with the associated private key at the client side. We will be using a Python module called Paramiko. The Paramiko module gives an abstraction of the SSHv2 protocol with both the client side and server side functionality.


To create a valid DSA format private key supported by Paramiko in Puttygen.

Click on Conversions then Export OpenSSH Key

Client, How to ssh connect through python Paramiko with public key is to convert .ppk file to openssh private key format; this can be achieved using  You have to provide a passphrase, when loading an encrypted key using the RSAKey.from_private_key_file. Though note that you do not have to load the key at all, when using the Pageant. That's the point of using an authentication agent. But only the SSHClient class supports the Pageant. The Transport class does not, on its own.


Key handling, This is used by SSHClient . Failure to do this may, in some situations, cause your Python interpreter to hang at Connect to an SSH server and authenticate to it. (The private key itself does not need to be listed in key_filename for this to​  Paramiko’s API facilitate both high level and low level control over the ssh connection. The simplest and probably the easiest way to connect to a remote machine using Paramiko is the SSHClient object. It is a high-level representation of a session with an SSH server.


SSH, SFTP, public key authentication and python, msg (Message) – an optional SSH Message containing a public key of this type. data Create a key object by reading a private key from a file (or file-like) object. Through the magic of Python, this factory method will exist in all subclasses of  I am generating private key from paramiko and tried connecting to my another machine using below code. I have saved key generated in .pub file. I have copied the same key in '~/.ssh/authorised_keys' file in my linux machine.


How to ssh in python using Paramiko?, Moreover, let's see how to work with SSH using python and execute any Here is the public key id_rsa.pub, which we send to the server owner, who will add it To connect and download files from the 'data/' directory on the remote When we installed pysftp we also installed paramiko by dependencies. I tried to puttygen -> Conversions -> Export Open SSH Key and named the file as .pem but does not work. any ideas ?! last version paramiko , python 3.6 This comment has been minimized. Sign in to view