The chkconfig command is a tool for managing system services on Linux systems, but it is not available on FreeBSD. However, there are similar tools available on FreeBSD for managing system services.
On FreeBSD, the rc.conf file is used to configure system services to start automatically at boot time. This file is located in the /etc directory, and it contains a list of system services and the runlevels in which they should be started.
To configure a system service to start automatically at boot time, you can add an entry for the service to the rc.conf file. For example, to configure the Apache HTTP server to start automatically at boot time, you can add the following line to the rc.conf file:
apache24_enable="YES"
This will enable the Apache HTTP server to start automatically at boot time.
You can also use the sysrc command to set the value of a variable in the rc.conf file. For example, to enable the Apache HTTP server to start automatically at boot time using the sysrc command, you can use the following command:
sysrc apache24_enable=YES
To start, stop, or restart a system service on FreeBSD, you can use the service command. For example, to start the Apache HTTP server, you can use the following command:
service apache24 start
To stop the Apache HTTP server, you can use the following command:
service apache24 stop
And to restart the Apache HTTP server, you can use the following command:
service apache24 restart
Note that you may need to use sudo to run these commands, depending on your system configuration and your user permissions.