What command enables the Zabbix server service to start on every boot?

The command that correctly enables the Zabbix server service to start on every boot is focused on using the systemctl utility, which is a central management tool for controlling the systemd system and service manager.

The core function of the command "systemctl enable zabbix-server" is to create the necessary symbolic links to ensure that the Zabbix server service starts automatically as part of the bootup process. This command configures the service to be included in the default target, which is executed during system startup.

The additional flag "--now" is also significant because it not only enables the service to start on boot but also immediately starts the Zabbix server service at that moment. This combination of actions is particularly useful for users who want to enable and initiate the service in one command, ensuring that the service is active right away.

In contrast, commands that either do not utilize the correct syntax of systemctl or are lacking the appropriate options to achieve the desired outcome would not effectively enable the service to start on boot. Therefore, identifying such commands helps clarify why "systemctl enable zabbix-server --now" is the fitting choice for ensuring the Zabbix server service is both enabled to start on boot and started immediately.