Hi Arunkrishna, What exactly are you trying to achieve here? The connectString in the db.xml is used to specify an advanced connection string to connect to a certain DB, for ex: <ConnectString> Data Source=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=myServer)(PORT=1521)) (CONNECT_DATA=(SERVICE_NAME=myOracleDb))); User Id=myUsername; Password=myPassword; </ConnectString> So I don't think your configuration is correct. As far as I know TLS is only applicable on Client-Server level and LDAP (communication with LDAP server). However it's also possible to use TLS to secure communication between DataMiner and a device by communication via an interface that uses TLS (ex HTTP). To setup TLS encryption please refer to the help: Enabling TLS encryption