chrony is not installed - NTP server

Information

If chrony is in use on the system proper configuration is vital to ensuring time synchronization is working properly. This recommendation only applies if chrony is in use on the system.

NOTE: Chrony is not installed.
NOTE: Nessus has not performed this check. Please review the benchmark to ensure target compliance.

Solution

Add or edit server or pool lines to /etc/chrony.conf as appropriate:
server <remote-server>

Configure chrony to run as the chrony user by configuring the appropriate startup script for your distribution. Startup scripts are typically stored in /etc/init.d or /etc/systemd.

See Also

https://www.cisco.com/c/en/us/td/docs/security/firepower/623/configuration/guide/fpmc-config-guide-v623.html