paramiko是什么? 基于ssh用于连接远程服务器做操作:远程执行命令, 上传文件, 下载文件
import paramiko
#ssh [email protected]
创建一个ssh对象;
client = paramiko.SSHClient()
2. 解决问题:如果之前没有;连接过的ip, 会出现
#Are you sure you want to continue connecting (yes/no)? yes
自动选择yes
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
3. 连接服务器
client.connect(
hostname='172.25.254.1',
username='root',
password='westos'
)
4. 执行操作
stdin, stdout, stderr = client.exec_command('hostname')
5. 获取命令的执行结果;
print(stdout.read().decode('utf-8'))
6. 关闭连接
client.close()
批量连接
from paramiko.ssh_exception import NoValidConnectionsError, AuthenticationException
def connect(cmd, hostname, user, password):
import paramiko
# ssh [email protected]
# 创建一个ssh对象;
client = paramiko.SSHClient()
# 2. 解决问题:如果之前没有;连接过的ip, 会出现
# Are you sure you want to continue connecting (yes/no)? yes
# 自动选择yes
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
try:
# 3. 连接服务器
client.connect(
hostname=hostname,
username=user,
password=password
)
except NoValidConnectionsError as e:
return "主机%s连接失败" %(hostname)
except AuthenticationException as e:
return "主机%s密码错误" % (hostname)
except Exception as e:
return "未知错误: ", e
else:
# 4. 执行操作
stdin, stdout, stderr = client.exec_command('hostname')
# 5. 获取命令的执行结果;
res = stdout.read().decode('utf-8')
# 6. 关闭连接
client.close()
return res
if __name__ == '__main__':
with open('doc/hosts.txt') as f:
for line in f:
# 172.25.254.1:root:westos
hostname, username, password = line.strip().split(":")
res = connect('hostname', hostname, username, password )
print(hostname.center(50, '*'))
print("主机名:", res)