66 NetApp AltaVault Cloud Integrated Storage Administration Guide
Beta Draft
Configuring system administrator settings Configuring date and time
Current NTP status
Brief status information appears just below the Use NTP Time Synchronization button. The label Current NTP server
is followed by either a server name or nothing if no NTP server is active.
This information appears after an NTP server name:
Authentication information; “unauthenticated” appears after the server name when it is not using authentication.
When the system has no NTP information about the current server, nothing appears.
When you configure an NTP server pool, the current NTP server that appears after the label Current NTP server never
matches the hostname of the server pool.
NTP MD5-based authentication
NTP authentication verifies the identity of the NTP server sending timing information to the AltaVault. The system
supports MD5-based Message-Digest Algorithm symmetric keys for NTP authentication. MD5 is a widely used
cryptographic hash function that produces a 128-bit (16-byte) hash value.
NTP authentication is optional.
Configuring NTP authentication involves these steps that you can perform in any order:
Configure a key ID and a secret pair.
Configure the NTP server with the key ID.
NTP servers
NetApp recommends synchronizing the AltaVault to an NTP server of your choice.
To add an NTP server
1. Choose Configure > Date and Time.
2. Under Requested NTP Servers, complete the configuration as described in this table.
Control Description
Add a New NTP Server Displays the controls to add a server.
Hostname or IP Address Specify the hostname or IP address for the NTP server.
Version Select the NTP server version from the drop-down list: 3 or 4.
Enabled/Disabled Select Enabled from the drop-down list to connect to the NTP server. Select Disabled
from the drop-down list to disconnect from the NTP server.
Key ID Specify the MD5 key identifier to use to authenticate the NTP server. The valid range is
1 to 65534. The key ID must appear on the trusted keys list.
Add Adds the NTP server to the server list.
Remove Selected Select the check box next to the name and click Remove Selected.
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