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paramiko does not automatically add unknown hosts #11

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paramiko does not automatically add unknown hosts#11
@onyxfish

Description

@onyxfish
onyxfish
opened on Mar 14, 2013
Owner
Connecting to SSH session on remote port 2222
Traceback (most recent call last):
  File "/usr/local/share/python/relay", line 9, in <module>
    load_entry_point('relay==0.0.8', 'console_scripts', 'relay')()
  File "/usr/local/lib/python2.7/site-packages/relay.py", line 187, in _main
    func(*args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/relay.py", line 281, in ssh
    key_filename=env['pair_private_key']
  File "/usr/local/lib/python2.7/site-packages/paramiko/client.py", line 321, in connect
    self._policy.missing_host_key(self, server_hostkey_name, server_key)
  File "/usr/local/lib/python2.7/site-packages/paramiko/client.py", line 85, in missing_host_key
    raise SSHException('Server %r not found in known_hosts' % hostname)
paramiko.SSHException: Server '[54.244.243.254]:2222' not found in known_hosts

Activity

jmsalomr

jmsalomr commented on Oct 17, 2013

@jmsalomr
jmsalomr
on Oct 17, 2013

Hi,

I have the same problem. Is this a bug or I'm doing something wrong. I'm using paramiko in Python 2.7 32 bits over Windows 7.

jmsalomr

jmsalomr commented on Oct 17, 2013

@jmsalomr
jmsalomr
on Oct 17, 2013

Sorry, solved.

You have to use:

ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) before

ghost

ghost commented on May 31, 2014

@ghost
ghost
on May 31, 2014

You need add: ssh.load_system_host_keys() ..before ssh.connect

anirudt

anirudt commented on Dec 25, 2015

@anirudt
anirudt
on Dec 25, 2015

+1 @jmsalomr , that worked. Thanks.

anunayamar

anunayamar commented on Feb 10, 2016

@anunayamar
anunayamar
on Feb 10, 2016

@jmsalomr you saved my time. Thanks!!

JMSwag
mentioned this on Jun 7, 2016
zlshi

zlshi commented on Aug 23, 2016

@zlshi
zlshi
on Aug 23, 2016

+1 @jmsalomr , that worked. Thanks.

tao12345666333

tao12345666333 commented on Oct 31, 2016

@tao12345666333
tao12345666333
on Oct 31, 2016

@jmsalomr Thanks.

AlexandreLicinio

AlexandreLicinio commented on Sep 11, 2017

@AlexandreLicinio
AlexandreLicinio
on Sep 11, 2017

@jmsalomr thanks :) 👍

zed

zed commented on Feb 2, 2018

@zed
zed
on Feb 2, 2018

To modify ~/.ssh/known_hosts file (to save the keys permanently) in addition to AutoAddPolicy(), use client.load_host_keys(os.path.expanduser('~/.ssh/known_hosts')). Note: AutoAddPolicy() opens you to the MITM attack. See Paramiko: Add host_key to known_hosts permanently.

chasays
added a commit that references this issue on Dec 27, 2018

[unknown_host](onyxfish/relay#11)

5990972
chasays
mentioned this on Dec 27, 2018
ssbarnea
mentioned this on Aug 6, 2019
usama767

usama767 commented on Aug 13, 2020

@usama767
usama767
on Aug 13, 2020
import paramiko as paramiko
from paramiko import AutoAddPolicy

ssh = paramiko.SSHClient()
ssh.load_system_host_keys()
ssh.set_missing_host_key_policy(AutoAddPolicy())
ssh.connect('52.160.xx.xx', port=22, username='frt-user', password='xxxxxx',sock=None)
ssh_stdin, ssh_stdout, ssh_stderr = ssh.exec_command('ls')

i get this error
TypeError: 'NoneType' object is not callable

what is the step i am missing or doing wrong? @jmsalomr

akliorin

akliorin commented on Dec 4, 2020

@akliorin
akliorin
on Dec 4, 2020

@usama767

I ran into both of the issues in this thread.
First, adding the autopolicy does work most of the time.

To fix the NoneType error, I went to //.ssh and deleted everything. Started working.

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        Issue actions
          paramiko does not automatically add unknown hosts · Issue #11 · onyxfish/relay