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I'm settings up a lab, Can some one help to answer the below queries   What would be the recommended firewall settings for a SCCM lab infra ( Do I need to turn OFF the firewall always) What are ports need to open ...

Question
  Hi All, we are getting the more no. of below errors everyday. Could someone please assist.how to resolve this SMS_DISCOVERY_DATA_MANAGER 530 Could not open file "D:Program FilesMicrosoft Configuration Managerinboxesauthddm.box35EX2JR.DDR" for reading.   In ddm.log there is no error appeared Thanks