import paramiko
import time

List_AuthFail = []
List_TimeOut = []

def SSHTest(ip):
    ssh = paramiko.SSHClient()
    # 首次访问时保存公钥
    ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    # 设置登录用户名和密码及端口
    try:
        ssh.connect(hostname=ip, port=22, username='root', password='abcdef')
        channel = ssh.invoke_shell()
        channel.send('ls')
        time.sleep(2)
        temp = channel.recv(9999999).decode()
        ssh.close()
    #抓取异常
    except paramiko.ssh_exception.AuthenticationException:
        print(ip, ' 认证失败')
        List_AuthFail.append(ip)
        return
    except TimeoutError:
        print(ip, ' 访问超时')
        List_TimeOut.append(ip)
        return

SSHTest('www.arssra.cn')
print('认证失败的设备有：', List_AuthFail)
print('访问超时失败的设备有：', List_TimeOut)