Information
The DISCOVER_DB parameter specifies whether the database can be discovered in the network. It is recommended that databases not be discoverable.
Rationale:
Discovery capabilities may be used by a malicious entity to derive the names of and target Db2 databases.
Solution
Connect to the Db2 database.
db2 => connect to <dbname>
Run the following command:
db2 => update database configuration using discover_db disable