How To Set A Service To Start Automatically In Ubuntu

It's usually a expert idea to configure essential network services to automatically first on boot. This saves you the hassle of starting them manually upon a reboot and too, the resulting havoc acquired in case you forget to practice and so. Some of the crucial network services include SSH, NTP, and httpd.

Y'all tin ostend what is your organisation service manager by running the following command.

# ps --pid 1

Based on the output of the above command, you volition use i of the post-obit commands to configure whether each service should start automatically on boot or not:

On systemd-based

----------- Enable Service to Outset at Boot ----------- # systemctl enable [service]

----------- Prevent Service from Starting at Boot ----------- # systemctl disable [service] # prevent [service] from starting at boot

On sysvinit-based

----------- Outset Service at Kicking in Runlevels A and B ----------- # chkconfig --level AB [service] on

-----------  Don't Start Service at boot in Runlevels C and D ----------- # chkconfig --level CD service off

On a systemd arrangement like CentOS 8, RHEL viii and Fedora 30+, the systemctl command is used for managing services. For example, to have a view of the disabled services, run the command:

$ sudo systemctl list-unit of measurement-files --state=disabled $ sudo chkconfig --listing     [On sysvinit-based]

The output below prints out all the disabled services and equally you can run across, the httpd service is listed, implying that information technology is non configured to first on boot.

To enable a service to start on kicking, utilize the syntax:

$ sudo systemctl enable service-name $ sudo chkconfig service_name on     [On sysvinit-based]

For case, to enable httpd service on boot execution.

$ sudo systemctl enable httpd $ sudo chkconfig httpd on     [On sysvinit-based]

To ostend that the httpd service has been enabled, list all the enabled services by executing the control:

$ sudo systemctl list-unit-files --state=enabled $ sudo chkconfig --list | grep three:on     [On sysvinit-based]

List Enabled Network Services — Listing Enabled Network Services

From the output above, we can clearly see that the httpd service now appears in the list of enabled services.

To acquire more about systemctl and chkconfig commands, read these following manufactures:

How to Manage 'Systemd' Services and Units Using 'Systemctl' in Linux
Basic chkconfig Command Examples in Linux

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