Which command line interface command would configure an NTP server on NetScaler?

• A. Add ntp server 192.168.55.54
• B. Add server ntp 192.168.55.54
• C. Add servicegroup NTP UDP
• D. Add service NTP 192.168.55.54 UDP 123

Answer: (A)

To configure time synchronization on a Citrix ADC, you create an NTP server object using the add ntp server command and supply the IP address of the time source. This tells the appliance which external clocks to synchronize with. In practice, pointing the ADC to 192.168.55.54 as an NTP server is exactly what this command does, making it the correct approach.

The other forms try to create general server or service objects rather than an NTP source. NetScaler uses a dedicated NTP server configuration, not a generic service or service group, and that’s why those options don’t set up time synchronization. The NTP port (UDP 123) is inherent to NTP, but you don’t configure it as a separate NTP service in this context.