Python使用paramiko库远程安全连接SSH

 #!/usr/bin/python
 #ssh
 import paramiko
 import sys,os

 host='127.0.0.1'
 user = 'whl'
 password = ''

 s = paramiko.SSHClient()                                 # 绑定实例
 s.load_system_host_keys()                                # 加载本地HOST主机文件
 s.set_missing_host_key_policy(paramiko.AutoAddPolicy())  # 允许连接不在know_hosts文件中的主机
 s.connect(host,22,user,password,timeout=5)               # 连接远程主机
 while True:
         cmd=raw_input('cmd:')
         stdin,stdout,stderr = s.exec_command(cmd)        # 执行命令
         cmd_result = stdout.read(),stderr.read()         # 读取命令结果
         for line in cmd_result:
                 print line
20 # paramiko实例(账号密码登录执行命令)

 #!/usr/bin/evn python
 import os
 import paramiko
 host='127.0.0.1'
 port=22
 user = 'whl'
 password = ''
 ssh=paramiko.Transport((host,port))
 privatekeyfile = os.path.expanduser('~/.ssh/id_rsa')
 mykey = paramiko.RSAKey.from_private_key_file( os.path.expanduser('~/.ssh/id_rsa'))   # 加载key 不使用key可不加
 ssh.connect(username=username,password=password)           # 连接远程主机
 # 使用key把 password=password 换成 pkey=mykey
 sftp=paramiko.SFTPClient.from_transport(ssh)               # SFTP使用Transport通道
 sftp.get('/etc/passwd','pwd1')                             # 下载 两端都要指定文件名
 sftp.put('pwd','/tmp/pwd')                                 # 上传
 sftp.close()
 ssh.close()
18 # paramiko实例(传送文件)

 #!/usr/bin/python
 #ssh
 import paramiko
 import sys,os
 host='127.0.0.1'
 user = 'whl'
 s = paramiko.SSHClient()
 s.load_system_host_keys()
 s.set_missing_host_key_policy(paramiko.AutoAddPolicy())
 privatekeyfile = os.path.expanduser('~/.ssh/id_rsa')             # 定义key路径
 mykey = paramiko.RSAKey.from_private_key_file(privatekeyfile)
 # mykey=paramiko.DSSKey.from_private_key_file(privatekeyfile,password='061128')   # DSSKey方式 password是key的密码
 s.connect(host,22,user,pkey=mykey,timeout=5)
 cmd=raw_input('cmd:')
 stdin,stdout,stderr = s.exec_command(cmd)
 cmd_result = stdout.read(),stderr.read()
 for line in cmd_result:
         print line,
 s.close()
 # paramiko实例(密钥执行命令)