RHEL 9 must have the s-nail package installed.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-257842 | RHEL-09-215095 | SV-257842r1044916_rule | CCI-001744 | medium |
| Description | ||||
| The "s-nail" package provides the mail command required to allow sending email notifications of unauthorized configuration changes to designated personnel. | ||||
| STIG | Date | |||
| Red Hat Enterprise Linux 9 Security Technical Implementation Guide | 2025-05-14 | |||
Details
Check Text (C-257842r1044916_chk)
Verify that RHEL 9 is configured to allow sending email notifications.
Note: The "s-nail" package provides the "mail" command that is used to send email messages.
Verify that the "s-nail" package is installed on the system:
$ dnf list --installed s-nail
s-nail.x86_64 14.9.22-6.el9
If "s-nail" package is not installed, this is a finding.
Fix Text (F-61507r925512_fix)
The s-nail package can be installed with the following command:
$ sudo dnf install s-nail