Python SSH Connection: Remote Access Guide

The typical method for connecting to SSH remotely in Python is by using the Paramiko library. Paramiko is a library that implements the SSHv2 protocol in pure Python and can be used to carry out functions of both an SSH client and server.

Here is a simple sample code demonstrating how to establish a remote SSH connection in Python using the Paramiko library.

import paramiko

# 创建SSH客户端对象
ssh = paramiko.SSHClient()

# 允许连接不在know_hosts文件中的主机
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())

# 连接SSH服务器
ssh.connect('hostname', username='username', password='password')

# 执行命令
stdin, stdout, stderr = ssh.exec_command('ls -l')

# 打印命令输出
print(stdout.read().decode())

# 关闭连接
ssh.close()

In this example, an SSHClient object is first created, then connected to an SSH server, a simple ls command is executed, and the output of the command is printed. Finally, the connection is closed.

It is important to note that when connecting to an SSH server, you need to provide information such as hostname, username, and password, but you can also use other authentication methods like keys. Additionally, the Paramiko library offers more functionalities such as uploading and downloading files, transferring files, which can be adjusted and expanded based on specific needs.