RHEL 10 must notify designated personnel if baseline configurations are changed in an unauthorized manner.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-280997 | RHEL-10-200690 | SV-280997r1195387_rule | CCI-000139 | medium |
| Description | ||||
| The "postfix" package provides the mail command required to allow sending email notifications of unauthorized configuration changes to designated personnel. | ||||
| STIG | Date | |||
| Red Hat Enterprise Linux 10 Security Technical Implementation Guide | 2026-03-11 | |||
Details
Check Text (C-280997r1195387_chk)
Verify RHEL 10 is configured to allow sending email notifications.
Note: The "postfix" package provides the "mail" command that is used to send email messages.
Verify that the "postfix" package is installed on the system:
$ sudo dnf list --installed postfix
Installed Packages
postfix.x86_64 2:3.8.5-8.el10 @AppStream
If the "postfix" package is not installed, this is a finding.
Fix Text (F-85463r1165345_fix)
Configure RHEL 10 to notify designated personnel if baseline configurations are changed in an unauthorized manner.
Install the postfix package with the following command:
$ sudo dnf -y install postfix