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chkconfig – Check or Set Various Services of the System

The chkconfig command is used to check or set the runlevel information for system services. It is used to configure the services that are started or stopped automatically when the system is booted up or shut down. The command is used to manage the services that are run by the init system.

Overview

The chkconfig command is used to manage the services that are run by the init system. The init system is responsible for starting and stopping services during the boot process. The chkconfig command allows you to control which services are started or stopped automatically when the system is booted up or shut down.

The basic syntax of the chkconfig command is as follows:

chkconfig [options] <service> <on/off>

To check the status of a service, use the following command:

chkconfig --list <service>

To enable a service to start automatically at boot time, use the following command:

chkconfig <service> on

To disable a service from starting automatically at boot time, use the following command:

chkconfig <service> off

Options

The following table lists all the available options for the chkconfig command:

Option Description
–add <service> Adds a new service for management by chkconfig.
–del <service> Deletes a service from management by chkconfig.
–list [<service>] Lists the status of all services or a specific service.
–level <levels> <service> <on/off> Sets the runlevels for a service.
–override <service> Overrides a service’s default runlevel settings.
–help Displays the help information.

Troubleshooting Tips

  • If you receive an error message stating that the service is not registered with chkconfig, make sure that the service is installed on the system.
  • If you receive an error message stating that the service is not enabled, make sure that you have the correct syntax for enabling the service.
  • If you receive an error message stating that the service is not running, make sure that the service is installed and started on the system.

Notes

  • The chkconfig command is only available on systems that use the init system.
  • The chkconfig command is typically used by system administrators to manage the services that are run by the system.
  • The chkconfig command should be used with caution, as it can potentially cause system instability if used incorrectly.

Related commands