在之前的文章中有三篇提到了Oracle的监听，如下： Oracle Listener 动态注册 与 静态注册 http://www.linuxidc.com/Linux/2011-0

在之前的文章中有三篇提到了Oracle的监听，如下：

Oracle Listener 动态注册 与 静态注册

Oracle 监听(Listener) 中 services 说明

Oracle 数据库监听配置

Oracle的监听(Listener)在缺省情况下，会在文件中记录日志，记录数据库实例注册操作、客户端的连接等。

Oracle 11g中的信息如下：

[oracle@dave ~]$ lsnrctl status

LSNRCTL for Linux: Version 11.2.0.3.0 - Productionon 22-DEC-2012 21:36:43

Copyright (c) 1991, 2011, Oracle. All rights reserved.

Connecting to(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.4)(PORT=1521)))

STATUS of the LISTENER

------------------------

Alias LISTENER

Version TNSLSNR for Linux: Version11.2.0.3.0 - Production

Start Date 22-DEC-2012 21:31:53

Uptime 0 days 0 hr. 4 min. 50 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/dave/listener/alert/log.xml

Listening Endpoints Summary...

(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.4)(PORT=1521)))

Services Summary...

Service "dave" has 2 instance(s).

Instance "dave", status UNKNOWN, has 1 handler(s) for thisservice...

Instance "dave", status READY, has 1 handler(s) for thisservice...

Service "daveXDB" has 1instance(s).

Instance "dave", status READY, has 1 handler(s) for thisservice...

The command completed successfully