FortiSIEM OS update process includes the following:
Whenever Redhat/CentOS publishes an important OS update for CentOS 6, an announcement is made via CentOS-announce mailing list. FortiSIEM engineering team subscribes to this mailing list. Once a new update is available, FortiSIEM engineering first tests these updates on FortiSIEM Virtual Appliance for stability and regression. After confirming that the update is safe, FortiSIEM CentOS 6 update server updates the OS packages from CentOS mirror servers.
Before release, FortiSIEM is updated with latest updates from FortiSIEM CentOS 6 update server. FortiSIEM customer automatically receives an OS update when they upgrade to the latest FortiSIEM.
If a customer needs to update CentOS 6 without upgrading FortiSIEM product itself, they can execute the script on demand: /opt/phoenix/phscripts/bin/phUpdateSystem.sh. For this, FortiSIEM instance needs port 443 access to: