Symptoms
When a user uses the sudo command, an email is sent to the admin email (typically root@hostname) with the notification that there is a "Problem with defaults entries"
Description
When SSSD is installed, it adds the following configuration line to the file /etc/nsswitch.conf:
sudoers: files sss
According to the following Red Hat bug report: https://bugzilla.redhat.com/show_bug.cgi?id=879633
When sudo is used with sssd and a local user runs sudo, an e-mail is sent to administrator, because sssd does not support sudo rules for local users. It is not an error, only noise.
This may be most commonly seen when SSSD and the WP-Toolkit are installed on the same server with the following notification:
sudo: wp-toolkit : problem with defaults entries ; TTY=unknown ; PWD=/usr/local/cpanel/3rdparty/wp-toolkit/scripts ; USER=root ;
Workaround
Edit the file /etc/nsswitch.conf and find the following line:
sudoers: files sss
Edit this line and remove the "sss" entry:
sudoers: files