堡垒机连接密码不正确

import paramiko

def connect_to_bastion(host, username, password):
    try:
        client = paramiko.SSHClient()
        client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        client.connect(hostname=host, username=username, password=password)
        print("Connected successfully!")
        client.close()
    except paramiko.AuthenticationException:
        print("Authentication failed, please verify your credentials.")
    except paramiko.SSHException as e:
        print(f"Unable to establish SSH connection: {e}")
    except Exception as e:
        print(f"An error occurred: {e}")

# Example usage
connect_to_bastion('bastion.example.com', 'user', 'password')