python paramiko使用

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paramiko 安装

1 2	yum install python-paramiko -y yum install openssh-server openssh-clients -y

报错

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Traceback (most recent call last):   File "ssh.py", line 10, in <module>     ssh.connect(hostname=hostname,port=port,username=username,password=password)   File "/usr/lib/python2.6/site-packages/paramiko/client.py", line 306, in connect     self._policy.missing_host_key(self, hostname, server_key)   File "/usr/lib/python2.6/site-packages/paramiko/client.py", line 83, in missing_host_key     raise SSHException('Unknown server %s' % hostname) paramiko.SSHException: Unknown server 192.168.2.11

解决方法一
1、创建 ~/.ssh/known_hosts
2、远程连接一次
eg

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#!/usr/bin/env python import paramiko hostname='192.168.2.11' username='root' password='oracle' port=22    ssh=paramiko.SSHClient() ssh.load_system_host_keys() ssh.connect(hostname=hostname,port=port,username=username,password=password) stdin,stdout,stderr=ssh.exec_command('ls /') print stdout.read() ssh.close()

解决方法二
将ssh.load_system_host_keys()替换为set_missing_host_key_policy(paramiko.AutoAddPolicy())
eg

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#!/usr/bin/env python import paramiko hostname='10.13.106.36' port=22 username='root' password='centos' if __name__=='__main__':         paramiko.util.log_to_file('paramiko.log')         s=paramiko.SSHClient()         s.set_missing_host_key_policy(paramiko.AutoAddPolicy())         s.connect(hostname,port,username,password)         stdin,stdout,stderr=s.exec_command('ifconfig')         print stdout.read()         s.close()