The global_names setting requires that the name of a database link matches that of the remote database it will connect to. This setting should have a value of TRUE. Rationale: Not requiring database connections to match the domain that is being called remotely could allow unauthorized domain sources to potentially connect via brute-force tactics.
Solution
To remediate this setting, execute the following SQL statement. ALTER SYSTEM SET GLOBAL_NAMES = TRUE SCOPE = SPFILE;