如何在OpenShift PHP Cartridges中打开1645端口?

It's to possible to open port 1645 in Cartridges PHP 5.4, Scales 1 - 3, Web Load Balancer?

How can i do that? I'm trying to install freeradius for my ISP.

The only ports that are externally accessible on OpenShift Online are 80/443/8000/8443. No other ports can be opened for public access. You can refer to this page https://developers.openshift.com/managing-your-applications/port-binding-routing.html of the Developer Portal for more information on port binding and routing.