Setting up /etc/cron.allow with only specified users (I.E _not_ your webserver user) is a good thing to do on servers generally. If you have cronjobs that need

Setting up /etc/cron.allow with only specified users (I.E _not_ your webserver user) is a good thing to do on servers generally. If you have cronjobs that need to run as a webserver user, setup another user specifically for the task, then in sudoers configuration explicitly allow that user to run the required command in the context of the webserver user.