====== Ubuntu - Cron - Limit Crontab Access to Specified Users ======

The **cron.allow** file will be needed.

Run the below command to check whether it exists in your system or not.

<code bash>
sudo ls /etc/cron.d/ | grep ".allow"
</code>

If this file exists, you can edit it as root and specify who can access crontab files in your system.  Else, login as superuser and create this file yourself.

<code bash>
sudo vi /etc/cron.d/cron.allow
</code>

Enter the usernames for whom you want to enable crontab access.

<WRAP alert>
Don’t forget to list root at the top or you may lock yourself out from your own crontab.
</WRAP>