Adding new NTP authentication keys
You add new NTP authentication keys under Administration > System Settings: Date and Time. These configuration options are available:
Add a New NTP Authentication Key
Displays the controls to add an authentication key to the key list. Both trusted and untrusted keys appear on the list.
Key ID
Specifies the secret MD5 or SHA1 key identifier for the NTP server. The valid range is from 1 to 65534.
Key Type
Specifies the authentication key type: MD5 or SHA1.
Secret
Specifies the shared secret. You must configure the same shared secret for both the NTP server and the NTP client. The MD5 shared secret:
• is limited to 16 alphanumeric characters or fewer, or exactly 40 characters hexadecimal.
• can’t include spaces or pound signs (#)
• can’t be empty
• is case sensitive
• The SHA1 shared secret:
• is limited to exactly 40 characters hexadecimal
• can’t include spaces or pound signs (#)
• can’t be empty
• is case sensitive
The secret appears in the key list as its MD5 or SHA1 hash value.
Add
Adds the authentication key to the trusted keys list.