Setup for CDB with all PDB on the same port: select dbms_xdb_config.gethttpsport() from dual; exec dbms_xdb_config.sethttpsport(5500); exec dbms_xdb_config.sethttpport(5511); alter system set dispatchers='(PROTOCOL=TCP)(SERVICE=THANASPRD)'; exec dbms_xdb_config.setglobalportenabled(TRUE); alter system register; Acces URL: https://192.168.0.64:5500/em Acces URL: http://192.168.0.64:5511/em Setup for CDB with each PDB on different port: On CDB$ROOT: exec dbms_xdb_config.setglobalportenabled(FALSE); On PDB: alter session set container=NEREUS; select dbms_xdb_config.gethttpsport() from dual; exec dbms_xdb_config.sethttpsport(5555); alter system register;` Acces URL: https://192.168.0.64:5555/em