ntp authentication-key

Syntax

ntp authentication-key{md5 | sha1}[trusted] no ntp authentication-key 

描述

Defines an authentication key that is used to secure the exchange with an NTP time server. This command provides protection against accidentally synchronizing to a time source that is not trusted.

The没有form of this command removes an authentication key.

Command context

config

Parameters

authentication-key

具体的es an identification number to uniquely identify the key. Range: 1 to 65534.

md5

具体的es md5 encryption to protect the key.

sh1

具体的es sh1 encryption to protect the key

具体的es the md5 or sh1 password associated with the key. Range: 8 to 16 characters.

trusted

具体的es that this is a trusted key. When NTP authentication is enabled, the switch only synchronizes with time servers that transmit packets containing a trusted key.

权威

Administrators or local user group members with execution rights for this command.

Examples

Defining key 10 with themd5passwordmyPassword作为一个值得信赖的关键:

switch(config)#ntp authentication-key 10 md5 myPassword trusted

Removing key 10:

switch(config)#没有ntp authentication-key 10