freeswitch/conf/vanilla/autoload_configs/rtmp.conf.xml

<configuration name="rtmp.conf" description="RTMP Endpoint">
  <profiles>
	<profile name="default">
		<settings>
			<param name="bind-address" value="0.0.0.0:1935" />
			<param name="context" value="public" />
			<param name="dialplan" value="XML" />
			<!-- If this is set to true, no unauthenticated inbound calls will be allowed -->
			<param name="auth-calls" value="true" />
			<!-- How much time should the clients buffer the media stream (miliseconds) -->
			<param name="buffer-len" value="50" />
			<!-- Sets the maximum size of outbound RTMP chunks -->
			<param name="chunksize" value="512" />
		</settings>
	</profile>
  </profiles>
</configuration>