While it was working fine, I had to stop the server once. When trying to start Oracle using a script we have, I got the following error:
SQL> Connected to an idle instance. SQL> ORA-01081: cannot start already-running ORACLE - shut it down first SQL> Disconnected
Also when trying to start SQL Plus manually AS SYSDBA I get:
ERROR: ORA-12162: TNS:net service name is incorrectly specified
Using SQL Plus with other users, I get:
ERROR: ORA-12537: TNS:connection closed
Any help appreciated ...