OL 9 must have the libreswan package installed.

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.

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.

Install the libreswan service (if it is not already installed) with the following command:

$ sudo dnf install -y libreswan