python paramiko连接ssh实现命令_Python

python paramiko连接ssh实现命令

2022-07-28 17:40wangfeng7399 Python

这篇文章主要为大家介绍了python paramiko连接ssh实现的命令详解，有需要的朋友可以借鉴参考下，希望能够有所帮助，祝大家多多进步，早日升职加薪

paramiko

paramiko是一个用于做远程控制的模块，使用该模块可以对远程服务器进行命令或文件操作，值得一说的是，fabric和ansible内部的远程管理就是使用的paramiko来现实。

安装

				?

									pip install paramiko

模块使用

执行命令—用户名+密码

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									#!/usr/bin/env python

									#coding:utf-8

									import paramiko

									# 建立一个sshclient对象

									ssh = paramiko.SSHClient()

									# 允许将信任的主机自动加入到host_allow 列表，此方法必须放在connect方法的前面

									ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())

									# 调用connect方法连接服务器

									ssh.connect('192.168.1.108', 22, 'alex', '123')

									# 执行命令

									stdin, stdout, stderr = ssh.exec_command('df')

									# 结果放到stdout中，如果有错误将放到stderr中

									print(stdout.read().decode('utf-8'))

									# 关闭连接

									ssh.close();

paramiko\ecdsakey.py:164: CryptographyDeprecationWarning: Support for unsafe construction of public numbers from encoded data will be removed in a future version. Please use EllipticCurvePublicKey.from_encoded_point
self.ecdsa_curve.curve_class(), pointinfo

paramiko\kex_ecdh_nist.py:39: CryptographyDeprecationWarning: encode_point has been deprecated on EllipticCurvePublicNumbers and will be removed in a future version. Please use EllipticCurvePublicKey.public_bytes to obtain both compressed and uncompressed point encoding.
m.add_string(self.Q_C.public_numbers().encode_point())

paramiko\kex_ecdh_nist.py:96: CryptographyDeprecationWarning: Support for unsafe construction of public numbers from encoded data will be removed in a future version. Please use EllipticCurvePublicKey.from_encoded_point
self.curve, Q_S_bytes

paramiko\kex_ecdh_nist.py:111: CryptographyDeprecationWarning: encode_point has been deprecated on EllipticCurvePublicNumbers and will be removed in a future version. Please use EllipticCurvePublicKey.public_bytes to obtain both compressed and uncompressed point encoding.
hm.add_string(self.Q_C.public_numbers().encode_point())

原因

paramiko 2.4.2 依赖 cryptography，而最新的cryptography==2.5里有一些弃用的API。

解决

删掉cryptography，安装2.4.2，就不会报错了。

pip uninstall cryptography

pip install cryptography==2.4.2

执行命令 -秘钥

				?

									import paramiko

									private_key_path = '/home/auto/.ssh/id_rsa'

									key = paramiko.RSAKey.from_private_key_file(private_key_path)

									ssh = paramiko.SSHClient()

									ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())

									ssh.connect('主机名 ', 端口, '用户名', key)

									stdin, stdout, stderr = ssh.exec_command('df')

									print(stdout.read().decode("utf-8"))

									ssh.close()

上传下载文件—用户名密码

				?

									import os,sys

									import paramiko

									t = paramiko.Transport(('182.92.219.86',22))

									t.connect(username='derek',password='123')

									sftp = paramiko.SFTPClient.from_transport(t)

									sftp.put('/tmp/test.py','/tmp/test.py') 

									t.close()

									import os,sys

									import paramiko

									t = paramiko.Transport(('182.92.219.86',22))

									t.connect(username='derek',password='123')

									sftp = paramiko.SFTPClient.from_transport(t)

									sftp.get('/tmp/test.py','/tmp/test2.py')

									t.close()

上传下载文件-用户名秘钥

				?

									import paramiko

									pravie_key_path = '/home/auto/.ssh/id_rsa'

									key = paramiko.RSAKey.from_private_key_file(pravie_key_path)

									t = paramiko.Transport(('182.92.219.86',22))

									t.connect(username='derek',pkey=key)

									sftp = paramiko.SFTPClient.from_transport(t)

									sftp.put('/tmp/test3.py','/tmp/test3.py') 

									t.close()

									import paramiko

									pravie_key_path = '/home/auto/.ssh/id_rsa'

									key = paramiko.RSAKey.from_private_key_file(pravie_key_path)

									t = paramiko.Transport(('182.92.219.86',22))

									t.connect(username='derek',pkey=key)

									sftp = paramiko.SFTPClient.from_transport(t)

									sftp.get('/tmp/test3.py','/tmp/test4.py') 

									t.close()