paramiko实现登录主机

Paramiko模块使用

实现目的：192.168.0.61通过Paramiko模块登录192.168.0.63

一、下载安装

由于 paramiko 模块内部依赖pycrypto，所以先下载安装pycrypto

pip install pycrypto
pip install paramiko

二、模块使用

1、SSHClient 用于连接远程服务器并执行基本命令

(1)基于用户名密码连接：

#!/usr/bin/python
#-*- codinig: UTF-8 -*-

import paramiko

transport = paramiko.Transport(('192.168.0.63', 22))
transport.connect(username='root', password='')

ssh = paramiko.SSHClient()
ssh._transport = transport

stdin, stdout, stderr = ssh.exec_command('sed -i s/hello/hi/g /home/b.sh')
print (stdout.read())

transport.close()

(2)基于公钥密钥连接：

前提已经生产公钥，而且公钥拷贝到了192.168.0.63这台上

#!/usr/bin/python
# -*- coding:UTF-8 -*-
import paramiko
private_key = paramiko.RSAKey.from_private_key_file('/root/.ssh/id_rsa')
transport = paramiko.Transport(('192.168.0.63', 22))
transport.connect(username='root', pkey=private_key)
ssh = paramiko.SSHClient()
ssh._transport = transport

stdin, stdout, stderr = ssh.exec_command('ifconfig')
print (stdout.read())
transport.close()

2、SFTPClient用于连接远程服务器并执行上传下载

(1)基于用户名密码上传下载：

import paramiko

transport = paramiko.Transport(('192.168.0.63',22))
transport.connect(username='root',password='')

sftp = paramiko.SFTPClient.from_transport(transport)

# 将/home/b.sh 上传至服务器 /home/b.sh
sftp.put('/home/b.sh', '/home/b.sh')

# 将remove_path 下载到本地 local_path
sftp.get('/home/b.sh', '/home/b.sh')
transport.close()

(2)基于公钥密钥上传下载：

# -*- coding:UTF-8 -*-
import paramiko
private_key = paramiko.RSAKey.from_private_key_file('/root/.ssh/id_rsa')
transport = paramiko.Transport(('192.168.0.63', 22))
transport.connect(username='root', pkey=private_key )
sftp = paramiko.SFTPClient.from_transport(transport)
# 将/home/b.sh 上传至服务器 /home/b.sh
sftp.put('/home/b.sh', '/home/b.sh')
# 将remove_path 下载到本地 local_path
sftp.get('/home/b.sh', '/home/b.sh')
transport.close()

3、实例：通过transport实现远程执行命令和上传文件

#!/usr/bin/env python
# -*- coding:utf-8 -*-
import paramiko
class SSHConnection(object):
    def __init__(self, host='192.168.0.63', port=22, username='root',pwd=''):
        self.host = host
        self.port = port
        self.username = username
        self.pwd = pwd
        self.__k = None

    def run(self):
        self.connect()
        pass
        self.close()
    def connect(self):
        transport = paramiko.Transport((self.host,self.port))
        transport.connect(username=self.username,password=self.pwd)
        self.__transport = transport
    def close(self):
        self.__transport.close()
    def cmd(self, command):
        ssh = paramiko.SSHClient()
        ssh._transport = self.__transport
        # 执行命令
        stdin, stdout, stderr = ssh.exec_command(command)
        # 获取命令结果
        result = stdout.read()
        return result
    def upload(self,local_path, target_path):
        # 连接，上传
        sftp = paramiko.SFTPClient.from_transport(self.__transport)
        # 将location.py 上传至服务器 /tmp/test.py
        sftp.put(local_path, local_path)
ssh = SSHConnection()
ssh.connect()
r1 = ssh.cmd('df')
print(r1.decode())
#ssh.upload('test.py', "/root/test.py")
ssh.upload("/home/b.sh", "/home/b.sh")
ssh.close()

参照：

https://www.cnblogs.com/xiaozhiqi/p/5814564.html

https://www.2cto.com/kf/201805/746279.html

https://blog.csdn.net/ywq935/article/details/78816860

https://blog.csdn.net/opera95/article/details/72824006