OL 9 must not have the sendmail package installed.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-271466 | OL09-00-000150 | SV-271466r1091110_rule | CCI-000381 | medium |
| Description | ||||
| The sendmail software was not developed with security in mind, and its design prevents it from being effectively contained by SELinux. Postfix must be used instead. | ||||
| STIG | Date | |||
| Oracle Linux 9 Security Technical Implementation Guide | 2025-05-08 | |||
Details
Check Text (C-271466r1091110_chk)
Verify that OL 9 does not have the sendmail package installed with the following command:
$ dnf list --installed sendmail
Error: No matching Packages to list
If the "sendmail" package is installed, this is a finding.
Fix Text (F-75423r1091109_fix)
Remove the sendmail package with the following command:
$ sudo dnf remove sendmail