华为交换机：
[Huawei]dis ntp-service status
[Huawei]dis ntp status
[Huawei]dis telnet server status
[Huawei]dis ssh server status
[Huawei]dis ntp status
关闭不安全的telnet协议
[Huawei]undo telnet server enable
华为路由器：
[Huawei]dis telnet server status
[Huawei]dis ssh server status
[Huawei]dis http server
关闭不安全的服务
[Huawei]undo http server enable
华三交换机：
华三交换机关闭不安全的协议telnet和http
<H3C>sys
[H3C]undo telnet server enable ?//关闭telnet
[H3C]undo ip http enable ?//关闭http