初学者必读：Oracle监听口令及监听器安全(2)

Trace information written to /opt/oracle/product/9.2.0/network/trace/listener.trc

Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=172.16.33.11)(PORT=1521)))

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=172.16.33.11)(PORT=1521)))

STATUS of the LISTENER

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

Alias LISTENER

Version TNSLSNR for Linux: Version 9.2.0.4.0 - Production

Start Date 28-NOV-2007 10:22:23

Uptime 0 days 0 hr. 0 min. 0 sec

Trace Level support

Security ON

SNMP OFF

Listener Parameter File /opt/oracle/product/9.2.0/network/admin/listener.ora

Listener Log File /opt/oracle/product/9.2.0/network/log/listener.log

Listener Trace File /opt/oracle/product/9.2.0/network/trace/listener.trc

Listening Endpoints Summary...

(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=172.16.33.11)(PORT=1521)))

Services Summary...

Service "eygle" has 1 instance(s).

Instance "eygle", status UNKNOWN, has 1 handler(s) for this service...

Service "julia" has 1 instance(s).

Instance "eygle", status UNKNOWN, has 1 handler(s) for this service...

The command completed successfully

另外，ADMIN_RESTRICTIONS参数也是一个重要的安全选项，大家可以在 listener.ora 文件中设置 ADMIN_RESTRICTIONS_ 为 ON，此后所有在运行时对监听器的修改都将会被阻止，所有对监听器的修改都必须通过手工修改listener.ora文件才能顺利完成。