初學者必讀：Oracle監聽口令及監聽器安全[2]

初學者必讀：Oracle監聽口令及監聽器安全[2]

作者：Andy　來源：賽迪網

　　在我們設置密碼后，遠程操作將會因缺失密碼而出現失?。?/P>

　　D:\>lsnrctl stop eygle
　　LSNRCTL for 32-bit Windows: Version 10.2.0.3.0 - Production on 28-11月-2007 10:22:57
　　Copyright (c) 1991, 2006, Oracle. All rights reserved.
　　正在連接到 (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=172.16.33.11)
　　(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=eygle)))
　　TNS-01169: 監聽程序尚未識別口令

　　注意：此時在服務器端或客戶端，都需要我們通過密碼來起停監聽器：

　　LSNRCTL> set password
　　Password:
　　The command completed suclearcase/" target="_blank" >ccessfully
　　LSNRCTL> stop
　　Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=172.16.33.11)(PORT=1521)))
　　The command completed successfully
　　LSNRCTL> start
　　Starting /opt/oracle/product/9.2.0/bin/tnslsnr: please wait...
　　TNSLSNR for Linux: Version 9.2.0.4.0 - Production
　　System parameter file is /opt/oracle/product/9.2.0.network/admin/listener.ora
　　Log messages written to /opt/oracle/product/9.2.0/network/log/listener.log
　　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參數也是一個重要的安全選項，大家可以在 listener.ora 文件中設置 ADMIN_RESTRICTIONS_ 為 ON，此后所有在運行時對監聽器的修改都將會被阻止，所有對監聽器的修改都必須通過手工修改listener.ora文件才能順利完成。

原文轉自：http://www.anti-gravitydesign.com