问题登场：

[oracle@my-e450 ~]$ lsnrctl status

……

The listener supports no services
The command completed successfully

SQL> conn sys/oracle@192.168.1.133:1521/orcl as sysdba
ERROR:
ORA-12514: TNS:listener does not currently know of service requested in connect
descriptor

解决过程：

SQL> alter system set local_listener='(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.133)(PORT=1521))';

System altered.

验证：

[oracle@my-e450 ~]$ lsnrctl status

……

Service "orcl" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...

Service "orclpdb" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...

SQL> conn sys/oracle@192.168.1.133:1521/orcl as sysdba
Connected.

嗯，问题解决了！

注： oracle 版本为 12.2.0.1.0

写于 Oct.30, 2019