Send an email when someone uses sudo

To keep track when any user uses sudo on your Linux system.

Requirements:

You will need an e-mail server, like sendmail:

apt-get install sendmail 

1 - create this file:

sudo nano /etc/sudoers.d/my_sudoers

2 - Add this content:

Defaults    mail_always
Defaults    mailto="youremail@domain.com"