I finally managed to run cronjobs successfully from a remote machine, or localh machine, with no coding:Go to Adminstrator panel => Manage => create an API key for your remote/local hostEdit your crontab as usual (crontab -e on linux)Past code and replace <YOUR API KEY HERE> with API key and <YOUR DOMAIN> where your osTicket installation is*/5 * * * * /usr/local/bin/curl --silent -d '{}' -H "X-API-Key: <YOUR API KEY HERE>" https://<YOUR DOMAIN>/api/tasks/cronTesting:In order to test the installation, run the curl command alone without --silent option, you should get "Completed"