Not all ports defined

I’m using iptables on CentOS 6 to secure my ports for a PCI compliant environment.

Using the list of ports defined in the documentation:

As part of the server hardening, you only allow ports on the local loop back interface that you predefine. White list approach. I used the documented ports and then start up couchbase-server and it won’t fully start. If I white list all ports on the loop back then couchbase-server starts.

What are the ports used during couchbase startup process that also need to be enabled in the firewall?