TNSLSNR for Linux: Version 11.2.0.4.0 - Production
System parameter file is /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
Log messages written to /u01/app/oracle/diag/tnslsnr/aaalife/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521)))
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias? ? ? ? ? ? ? ? ? ? LISTENER
Version? ? ? ? ? ? ? ? ? TNSLSNR for Linux: Version 11.2.0.4.0 - Production
Start Date? ? ? ? ? ? ? ? 07-SEP-2015 01:27:53
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/dbhome_1/network/admin/listener.ora
Listener Log File? ? ? ? /u01/app/oracle/diag/tnslsnr/aaalife/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521)))
The listener supports no services
The command completed successfully
默认显示的还有1521端口监听程序。同时，发现其实当前服务器上是由两个监听器运行的。
[oracle@aaalife admin]$ lsnrctl status listener
LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 07-SEP-2015 01:30:13
Copyright (c) 1991, 2013, Oracle.? All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias? ? ? ? ? ? ? ? ? ? LISTENER
Version? ? ? ? ? ? ? ? ? TNSLSNR for Linux: Version 11.2.0.4.0 - Production
Start Date? ? ? ? ? ? ? ? 07-SEP-2015 01:27:53
Uptime? ? ? ? ? ? ? ? ? ? 0 days 0 hr. 2 min. 19 sec
Trace Level? ? ? ? ? ? ? off
Security? ? ? ? ? ? ? ? ? ON: Local OS Authentication
SNMP? ? ? ? ? ? ? ? ? ? ? OFF
Listener Parameter File? /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
Listener Log File? ? ? ? /u01/app/oracle/diag/tnslsnr/aaalife/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521)))
Services Summary...
Service "aaadb" has 1 instance(s).
Instance "aaadb", status READY, has 1 handler(s) for this service...
Service "aaadbXDB" has 1 instance(s).
Instance "aaadb", status READY, has 1 handler(s) for this service...
The command completed successfully
[oracle@aaalife admin]$
[oracle@aaalife admin]$ lsnrctl status my_listener
LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 07-SEP-2015 01:30:29
Copyright (c) 1991, 2013, Oracle.? All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1531)))
STATUS of the LISTENER
------------------------
Alias? ? ? ? ? ? ? ? ? ? LISTENER
Version? ? ? ? ? ? ? ? ? TNSLSNR for Linux: Version 11.2.0.4.0 - Production
Start Date? ? ? ? ? ? ? ? 07-SEP-2015 01:17:52
Uptime? ? ? ? ? ? ? ? ? ? 0 days 0 hr. 12 min. 37 sec
Trace Level? ? ? ? ? ? ? off
Security? ? ? ? ? ? ? ? ? ON: Local OS Authentication
SNMP? ? ? ? ? ? ? ? ? ? ? OFF
Listener Parameter File? /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
Listener Log File? ? ? ? /u01/app/oracle/diag/tnslsnr/aaalife/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1531)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1531)))
The listener supports no services
The command completed successfully
上面信息显示出几个细节：
ü? 我们在listener.ora文件中配置了一个自定义监听器my_listener，监听1531端口。但是系统当前默认监听器依然存在，并且可运行，在1521端口。my_listener监听器运行在1531端口；
ü? Oracl