初学者必读:Oracle监听口令及监听器安全[1]

发表于:2008-07-21来源:作者:点击数: 标签:oracleOracleORACLE安全措施口令
初学者必读:Oracle监听口令及监听器 安全 [1] 作者:Andy 来源:赛迪网 很多人都知道,Oracle的监听器一直存在着一个安全隐患,假如不设置安全措施,那么能够访问的用户就可以远程关闭监听器。 相关示例: D:\lsnrctl stop eygle LSNRCTL for 32-bit Window

初学者必读:Oracle监听口令及监听器安全[1]

作者:Andy 来源:赛迪网

  很多人都知道,Oracle的监听器一直存在着一个安全隐患,假如不设置安全措施,那么能够访问的用户就可以远程关闭监听器。

  相关示例:

  D:\>lsnrctl stop eygle
  LSNRCTL for 32-bit Windows: Version 10.2.0.3.0 - Production on 28-11月-2007 10:02:40
  Copyright (c) 1991, 2006, Oracle. All rights reserved.
  正在连接到 (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=172.16.33.11)(PORT=1521))
  (CONNECT_DATA=(SERVICE_NAME=eygle)))
  命令执行成功

  大家可以发现,此时缺省的监听器的日志还无法记录操作地址:

  No longer listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=172.16.33.11)(PORT=1521)))
  28-NOV-2007 09:59:20 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=)(USER=Administrator))(COMMAND=stop)
  (ARGUMENTS=64)(SERVICE=eygle)(VERSION=169870080)) * stop * 0

  为了更好的保证监听器的安全,大家最好为监听设置密码:

  [oracle@jumper log]$ lsnrctl
  LSNRCTL for Linux: Version 9.2.0.4.0 - Production on 28-NOV-2007 10:18:17
  Copyright (c) 1991, 2002, Oracle Corporation. All rights reserved.
  Welcome to LSNRCTL, type "help" for information.
  LSNRCTL> set current_listener listener
  Current Listener is listener
  LSNRCTL> change_password
  Old password:
  New password:
  Reenter new password:
  Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=172.16.33.11)(PORT=1521)))
  Password changed for listener
  The command completed suclearcase/" target="_blank" >ccessfully
  LSNRCTL> set password
  Password:
  The command completed successfully
  LSNRCTL> save_config
  Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=172.16.33.11)(PORT=1521)))
  Saved LISTENER configuration parameters.
  Listener Parameter File /opt/oracle/product/9.2.0.network/admin/listener.ora
  Old Parameter File /opt/oracle/product/9.2.0/network/admin/listener.bak
  The command completed successfully

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