Configuring Access to the Oracle Linux Yum Server Through a Firewall

The Oracle Linux yum server delivers content through a Content Delivery Network (CDN). When you connect to the Oracle Linux yum server, you connect to a node on the CDN that's geographically closer to the system you're using. With CDN, download speeds are faster.

Because the CDN has many nodes that run on different networks around the world, you can not configure any single IP address or network range for an egress firewall rule.

In environments where a strict firewall policy limits outbound connections for systems, we recommend configuring a local yum mirror server within a demilitarized zone (DMZ). See Setting Up a Local Yum Mirror for information on how to configure a local yum mirror.