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I using paramiko to connect to Server1 and then from Server1 to Server2 because I only have access to Server2 from Server1 not from my local computer.

So I want to upload an file from my local computer on Server2.

To achieve this I tryd it with this code:

    import paramiko
# paramiko.common.logging.basicConfig(level=paramiko.common.DEBUG)
# Verbindung zum ersten Server herstellen
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect('server1', username='user', password='passwort123')

# Verbindung zum zweiten Server herstellen und eine SFTP-Sitzung öffnen
session1_transport = ssh.get_transport()
session1 = session1_transport.open_session()
session1.set_combine_stderr(True)
session1.get_pty()
session1.exec_command('ssh usernamev@server2')

# SSH-Verbindung zum zweiten Server herstellen und den Transport erhalten
session2 = session1.invoke_shell()
session2_transport = paramiko.Transport(sock=session2)
session2_transport.start_client()
session2_transport.auth_none('username')
session2_transport.auth_password(username='username', password='password123')

# SFTP-Verbindung zum zweiten Server herstellen
sftp = paramiko.SFTPClient.from_transport(session2_transport)

# Datei auf den zweiten Server hochladen
local_path = r"localpath/file"
remote_path = r"remotepath/file"
sftp.put(local_path, remote_path)

# SFTP-Verbindung und Sessions schließen
sftp.close()
session2_transport.close()
session1.close()
ssh.close()

The problem with this is that it always crash here:

session2 = session1.invoke_shell()

The problem is that: paramiko.ssh_exception.SSHException: Channel closed.

I also tryd it with this code: 

    import paramiko
import os

# Verbindung zum ersten Server herstellen
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect('server1', username='user', password='passwort')

# Verbindung zum zweiten Server herstellen und eine SFTP-Sitzung öffnen
transport = ssh.get_transport()
session1 = transport.open_session()
session1.set_combine_stderr(True)
session1.get_pty()
session1.exec_command('ssh userv@server2')

session2 = transport.open_session()
session2.set_combine_stderr(True)
session2.get_pty()
session2.exec_command('sftp server2')

# SFTP-Verbindung zum zweiten Server herstellen
sftp = paramiko.SFTPClient.from_transport(transport)

# Datei auf den zweiten Server hochladen
local_path = r"localpath/file"
remote_path = r"/path/to/remote/file/on/server2"

sftp.put(local_path, remote_path)

# SFTP-Verbindung und Sessions schließen
sftp.close()
session2.close()
session1.close()
ssh.close()

but with that I only can upload to server1 and not to server2

anyone an Idea what Ive been missing?

BeginnerWPF
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  • thats helpfule but Im quite confused which adress I should write there, because It seems that there only 2 Ip adressess are used in the example but I thought I need like 3 IP adress my local PC then my Server1 and then the target Server Server2 where should go which Ip and login Information? – BeginnerWPF May 08 '23 at 07:39

0 Answers0