8.1 Making Oracle Database EM Express Available to Remote Clients
After you install Oracle Database XE, EM Express is only available from the local server, it cannot be accessed remotely.
To make EM Express available to remote clients, start SQL*Plus and log in as SYSTEM
and execute this procedure:
$ sqlplus system
Enter password: SYSTEM_password
SQL> EXEC DBMS_XDB.SETLISTENERLOCALACCESS(FALSE);