McDewey

NTP Servers Ensure that external NTP servers are stratum 9 or higher (1-9). To add, delete, or modify an external NTP server, follow this procedure: You can only configure the NTP server settings on the first node or publisher. Note Step 1 From the Cisco Unified Communications Operating System Administration window, navigate to Settings > NTP Servers. The NTP Server Settings window displays. Step 2 You can add, delete, or modify an NTP server: To avoid potential compatibility, accuracy, and network jitter problems, the external NTP servers that you specify for the primary node should be NTP v4 (version 4). If you are usingIPv6 addressing, external NTP servers must be NTP v4. • To delete an NTP server, check the check box in front of the appropriate server and click Delete. • To add an NTP server, click Add, enter the hostname or IP address, and then click Save. • To modify an NTP server, click the IP address, modify the hostname or IP address, and then click Save. Any change that you make to the NTP servers can take up to 5 minutes to complete. Whenever you make any change to the NTP servers, you must refresh the window to display the correct status. Note Step 3 To refresh the NTP Server Settings window and display the correct status, select Settings > NTP. After deleting, modifying, or adding the NTP server, you must restart all other nodes in the cluster for the changes to take affect. Note SMTP Settings The SMTP Settings window allows you to view or set the SMTP hostname and indicates whether the SMTP host is active. If you want the system to send you e-mail, you must configure an SMTP host. Tip To access the SMTP settings, follow this procedure: Step 1 From the Cisco Unified Communications Operating System Administration window, navigate to Settings > SMTP. Cisco Unified Communications Operating System Administration Guide for Cisco Unity Connection Release 15 18 Settings NTP Servers