How to avoid getting an alert mail when sudo command is executed by unpriviledged users.
Issue
By default, root user gets an alert email like below when unpriviledged users run sudo command.
[test@localhost ~]$ sudo -E ls
[root@localhost ~]# mail
"/var/spool/mail/root": 1 messages
> 1 test@localhost.local Thu Jul 26 16:19 17/654 "*** SECURITY information for localhost ***"
& 1
Message 1:
From root@localhost.localdomain Thu Jul 26 16:19:38 2018
Return-Path: <root@localhost.localdomain>
X-Original-To: root
Delivered-To: root@localhost.localdomain
To: root@localhost.localdomain
From: test@localhost.localdomain
Auto-Submitted: auto-generated
Subject: *** SECURITY information for localhost ***
Date: Thu, 26 Jul 2018 16:19:38 +0900 (JST)
Status: RO
localhost : Jul 26 16:19:38 : test : user NOT in sudoers ; TTY=pts/1 ; PWD=/home/test ; USER=root ; COMMAND=/bin/ls
Environment
Red Hat Enterprise Linux 6
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