OL 9 must have the libreswan package installed.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-271517	SRG-OS-000120-GPOS-00061	OL09-00-000410	SV-271517r1101885_rule	2025-05-08	1

Description
Providing the ability for remote users or systems to initiate a secure VPN connection protects information when it is transmitted over a wide area network.

ℹ️ Check
Note: If there is no operational need for Libreswan to be installed, this rule is not applicable. Verify that OL 9 libreswan service package is installed. Check that the libreswan service package is installed with the following command: $ dnf list --installed libreswan Installed Packages libreswan.x86_64 4.12-2.0.1.el9_4.1 @ol9_appstream If the libreswan package is not installed, this is a finding.

ℹ️ Check

Note: If there is no operational need for Libreswan to be installed, this rule is not applicable. Verify that OL 9 libreswan service package is installed. Check that the libreswan service package is installed with the following command: $ dnf list --installed libreswan Installed Packages libreswan.x86_64 4.12-2.0.1.el9_4.1 @ol9_appstream If the libreswan package is not installed, this is a finding.

✔️ Fix
Install the libreswan service (if it is not already installed) with the following command: $ sudo dnf install -y libreswan