Verify the “ssl module” module is loaded: # httpd -M | grep -i ssl_module Output: ssl_module (shared) If the "ssl_module" is not found, this is a finding. Determine the location of the ssl.conf file: # find / -name ssl.conf Output: /etc/httpd/conf.d/ssl.conf Search the ssl.conf file for the following: # cat /etc/httpd/conf.d/ssl.conf | grep -i "SSLCACertificateFile" Output should be similar to: SSLCACertificateFile /etc/pki/tls/certs/ca-bundle.crt Review the path of the "SSLCACertificateFile" directive. Review the contents of <'path of SSLCACertificateFile'>\ca-bundle.crt. Examine the contents of this file to determine if the trusted CAs are DOD approved. If the trusted CA that is used to authenticate users to the website does not lead to an approved DOD CA, this is a finding. NOTE: There are non-DOD roots that must be on the server for it to function. Some applications, such as antivirus programs, require root CAs to function. DOD-approved certificate can include the External Certificate Authorities (ECA) if approved by the AO. The PKE InstallRoot 3.06 System Administrator Guide (SAG), dated 08 Jul 2008, contains a complete list of DOD, ECA, and IECA CAs.