I want to transfer files between two Ubuntu Servers using scp, i have tested scp between the two systems and it worked perfectly fine.So i dont want to execute the command everytime i need to get files so i want to write a python script which automatically downloads files from other host using scp.
While searching online i found this Paramiko module and i have trouble installing this and i have rectified this using module cryptography
.Now the real trouble is explained with the terminal below.
>>> from paramiko import SSHClient
>>> from scp import SCPClient
>>> ssh = SSHClient()
>>> ssh
<paramiko.client.SSHClient object at 0x1a41c90>
>>> ssh.load_system_host_keys()
>>> ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
>>> ssh.connect('[email protected]')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python2.7/dist-packages/paramiko/client.py", line 296, in c onnect
to_try = list(self._families_and_addresses(hostname, port))
File "/usr/local/lib/python2.7/dist-packages/paramiko/client.py", line 200, in _ families_and_addresses
addrinfos = socket.getaddrinfo(hostname, port, socket.AF_UNSPEC, socket.SOCK_S TREAM)
socket.gaierror: [Errno -2] Name or service not known
>>> ssh.connect('192.168.100.100')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python2.7/dist-packages/paramiko/client.py", line 361, in c onnect
server_key)
File "/usr/local/lib/python2.7/dist-packages/paramiko/client.py", line 672, in m issing_host_key
raise SSHException('Server %r not found in known_hosts' % hostname)
paramiko.ssh_exception.SSHException: Server '192.168.100.100' not found in known_hos ts
I have changed the ip and username for safe use somename is replaced
but i have tried with original username
.So i tried this several times but i still getting the same error.
Any suggestions on this problem?Please Help.
Maybe you are missing the missing_host_key_policy
What about this one:
proxy = None
client = paramiko.SSHClient()
client.load_system_host_keys()
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
client.connect(host['hostname'], username=host['user'], sock=proxy)
more examples here: www.programcreek.com