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在实际维护环境中或者在AWD比赛中可能会用到SSH批量连接的需求，下面这段批量连接代码分享给大家，大家可以在这个基础上面继续加工比如修改密码。

#coding:utf-8

import paramiko
import time

#pkey = paramiko.RSAKey.from_private_key_file('C:\\Users\id_rsa')


def ssh_conn(ssh_ip, command):
	ip = ssh_ip
	port = '22'
	user = 'root'
	passwd = '123456'
	
	client = paramiko.SSHClient()
	client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
	try:
		client.connect(hostname=ip, port=port, username=user, password=passwd,timeout=3)
	except:
		print('[INFO] host: %s auth failed' % ip)
		
	try:
		stdin, stdout, stderr = client.exec_command(command)
		result = stdout.read().decode('utf-8')
		print(ssh_ip)
		print(result)
	except:
		pass
	client.close()
	
if __name__ == "__main__":
	command = "ifconfig"
	for j in range(1, 129):
		if j != 129:
			ssh_ip = '192.168.1.' + str(j)
			ssh_conn(ssh_ip , command)