You can access Crontab Manager interface in the server-manager and then you can easily create/delete crons. After you have made your changes and saved the session the changes will be written to the file /etc/crontab | You can access Crontab Manager interface in the server-manager and then you can easily create/delete crons. After you have made your changes and saved the session the changes will be written to the file /etc/crontab |