tnsnames.ora
SALES =
  (DESCRIPTION  =
  (ADDRESS_LIST =
  (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.188.219)(PORT = 1521))
  ) 
  (CONNECT_DATA =
  (SERVER = DEDICATED)
  (SERVICE_NAME = sales)
  )
  ) 
  listener.ora
SID_LIST_LISTENER =
  (SID_LIST =
  (SID_DESC =
  (GLOBAL_DBNAME = boway)
  (ORACLE_HOME = E:\oracle\product\10.1.0\Db_2)
  (SID_NAME = ORCL)
  )
  )