Hello, i have to configure oracle data guard on oracle 11g R2 , the connect to the auxiliary oracle instance
must be performed on unmounted database and with @dblink format , this is my result :
RMAN> connect auxiliary sys/****@stanbyDB
RMAN-04006: error from auxiliary database: ORA-12528: TNS:listener: all appropriate instances are blocking new connections
What is the listener config for that ?