Cron job host : You can choose between local, remote or IP address.
Local : the lcalcron can only be started from the server ( the same server as the calendar ). Use when Your provider allows/provides cron job. Using this option, prevents the job to be started from "outside" ( remote ).
Remote : The lcalcron can be started from anywhere. You can use this option if You have chosen an external provider that has not a fixed IP address. You can also use it when testing Your cronjob.
It can be used when You want to start the cronjob manually ( via Your browser ), and You don't know Your own IP address, or if You don't have a fixed IP.
It is not recommended that You use this option permanently.
IP address : When You know the IP of the remote location ( the IP seen in the clip, is the IP from cron-job.org ), that will run Your cronjob, You can put it in here. Doing so, and choosing IP address, will prevent all other than this IP to start Your job.
Some cronjob providers, have not given the correct IP on their site ( http://cronless.com is also a good provider, but the IP they tell is not correct ).
This is not a problem. In the luxcal.log, You can see the history of ALL starts of the cronjob - even those who had a wrong IP and were aborted. You can then see if this was the IP You wanted to "let in" and then use this IP in the settings. If You use a remote access to Your cronjob, then the IP address option is strongly recommended. BEWARE - the shown IP is only for an example. You have to test which IP your cronjob provider uses. It is important that the provider does always use the same IP.
Admin cron job summary : Send a cron job summary to the calendar administrator. Enabling is only useful if a cron job has been activated for the calendar.
Email destinations for changes : Destination email addresses periodically receiving an email with calendar changes.
Email addresses separated by semicolons.
Days to look back for changes : Number of days to look back for the summary of calendar changes.
If the number of days is set to 0 or if no cron job is running no summary of changes will be sent.
Daily export of iCal events : If enabled: All events in the date range -1 week until +1 yesr will be exported in iCalendar format in a .ics file in the 'files' folder.
The file name will be the calendar name with blanks replaced by underscores. Old files will be overwritten by new files.
Event expiry days : Number of days after the event due date when the event expires and will be automatically deleted.
If 0 or if no cron job is running, no events will be automatically deleted.
Max. no. of days not logged in : If an account hasn\'t logged in for this many days it will be automatically deleted.
If this value is set to 0, user accounts will never be deleted.