问题11：如何启动、关闭、查看监听？

[oracle@hyldb admin]$ lsnrctl start

--启动监听

LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 04-OCT-2014 00:42:49
Copyright (c) 1991, 2013, Oracle.  All rights reserved.
Starting /u01/app/oracle/product/11.2.0/db_1/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 11.2.0.4.0 - Production
System parameter file is /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora
Log messages written to /u01/app/oracle/diag/tnslsnr/hyldb/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=hyldb)(PORT=1521)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=hyldb)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.2.0.4.0 - Production
Start Date                04-OCT-2014 00:42:49
Uptime                    0 days 0 hr. 0 min. 0 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora
Listener Log File         /u01/app/oracle/diag/tnslsnr/hyldb/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=hyldb)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
The listener supports no services
The command completed successfully?

[oracle@hyldb admin]$ lsnrctl status

--查看监听

LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 04-OCT-2014 00:43:18
Copyright (c) 1991, 2013, Oracle.  All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=hyldb)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.2.0.4.0 - Production
Start Date                04-OCT-2014 00:42:49
Uptime                    0 days 0 hr. 0 min. 28 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora
Listener Log File         /u01/app/oracle/diag/tnslsnr/hyldb/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=hyldb)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
Services Summary...
Service "hyl" has 1 instance(s).
  Instance "hyl", status READY, has 1 handler(s) for this service...
Service "hylXDB" has 1 instance(s).
  Instance "hyl", status READY, has 1 handler(s) for this service...
The command completed successfully?

[oracle@hyldb admin]$ lsnrctl stop

--停止监听

LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 04-OCT-2014 00:42:35
Copyright (c) 1991, 2013, Oracle.  All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=hyldb)(PORT=1521)))
The command completed successfully?

[oracle@hyldb admin]$ lsnrctl status

LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 04-OCT-2014 00:42:45
Copyright (c) 1991, 2013, Oracle.  All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=hyldb)(PORT=1521)))
TNS-12541: TNS:no listener
 TNS-12560: TNS:protocol adapter error
  TNS-00511:

OCP专题之网络(二)

问题11：如何启动、关闭、查看监听？