连接服务器失败756

ping <服务器IP地址>

# 在Windows防火墙中添加规则
netsh advfirewall firewall add rule name="Open Port 3389" dir=in action=allow protocol=TCP localport=3389

# 在服务器上启动远程桌面服务
net start TermService

# 查看端口占用情况
netstat -ano | findstr :3389

import paramiko

def connect_to_server(hostname, port, username, password):
    try:
        client = paramiko.SSHClient()
        client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        client.connect(hostname, port=port, username=username, password=password)
        print("Connected successfully!")
    except paramiko.AuthenticationException:
        print("Authentication failed.")
    except paramiko.SSHException as e:
        if "Error 756" in str(e):
            print("Connection failed with error code 756.")
        else:
            print(f"SSH connection failed: {e}")
    except Exception as e:
        print(f"An error occurred: {e}")

# Example usage
connect_to_server('your_server_ip', 22, 'your_username', 'your_password')