python paramiko连接ssh实现命令
目录
- paramiko
- 安装
- 原因
- 解决
- 执行命令 -秘钥
- 上传下载文件—用户名密码
- 上传下载文件-用户名秘钥
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
#!/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(), pointinfoparamiko\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_bytesparamiko\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()
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