On the Core interface (http://corecloud.tv) select the Destinations menu on the left and then Channels from the sub menu. Choose "Create a Channel" to begin the configuration process for your RTMP destination.
In this example, we chose to link a Facebook account to Core. Be sure to read our "Best practices and recommended specs" write up by clicking the info (i) button above "Save".
Once your RTMP destination is configured, add the destination to your encoder from the Dashboard. On the Encoder Details screen, select Channels and then add any destination you wish to stream to.
To begin your stream, simply press Go Live on the Encoder Details page. If you have multiple destinations, select the Start All button.