When starting ATG instances with the DCS module I will often see this warning.
DistributorSender No remote servers configured
This is because in the product catalog two item descriptors, media-internal-binary and media-internal-text, are configured to use the Dynamo content distributor system if it is available. This is documented in the Using Content Distribution with a SQL Content Repository section of the ATG Dynamo Programming Guide.
Since out of the box the Dynamo content distributor system is not configured we see the above warning. To turn it off simply set
loggingWarning=false for the