RMAN-04006: error from auxiliary database: ORA-01017: invalid username/password
I am out of my clues now. I tried everything.
The whole story is this:
I have to build staging/prod project from scratch with dataguard , standalone oracle restart with 12c in both grid/oracle version on oracle linux vm boxes.
I finished with one without issues. Dataguard was set through RMAN connect to Auxiliary and create from active database.
I howevver encountered above ora-01017 error in the other environment. I did exact same steps as first one, I tried everything I could do: recreated shell standby db with the right password, created password file and scp over, etc.
However in primary side whenever I try to connect to auxiliary it kept throw me above error.