System > System Management > Device Management > NTP Key
After enabling the NTP authentication function, the system will only synchronize the system time with the time in the authorized servers.
In the NTP Key page, you can perform the following actions:
Options in the NTP Key Configuration dialog:
| Option | Description |
| Key ID |
Type the ID number. The available range is 1 to 65535. |
| Password |
Type a MD5 key. The value range is 1 to 31. |
| Confirm Password |
Re-type the same MD5 key you have entered. |