so i did:
listeners.ora:
SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (SID_NAME = ec211gr2) (GLOBAL_DBNAME = ec211gr2) (ORACLE_HOME =/u01/app/oracle/product/11.2.0/db_1) ) ) LISTENER = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1522)) ) (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 8080)) (PRESENTATION=HTTP) (SESSION=RAW) ) )tnsnames.ora:
EC211GR2 = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1522)) (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 8080))(Presentation=HTTP)(Session=RAW) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = ec211gr2) ) )some sql as sysdba
alter system set dispatchers=(PROTOCOL=TCP)(SERVICE=ec211gr2XDB) scope booth; alter system set local_listener=EC211GR2 scope booth; create pfile from spfile; shutdown immediate startupsome bash command as oracle
lsnrctl stop lsnrctl start