千家信息网

配置数据库监听白名单

发表于:2025-02-04 作者:千家信息网编辑
千家信息网最后更新 2025年02月04日,一、背景:2020年伊始,我们的工作中多了一个词"护网行动",之前闻所未闻;这是一个从国家层面提出的安全概念,目的是为了保障信息安全。各个组织机构会定期组织安防演练。咱们数据库层面为了应对这次安防演练
千家信息网最后更新 2025年02月04日配置数据库监听白名单

一、背景:

2020年伊始,我们的工作中多了一个词"护网行动",之前闻所未闻;这是一个从国家层面提出的安全概念,目的是为了保障信息安全。各个组织机构会定期组织安防演练。咱们数据库层面为了应对这次安防演练也提出了自己的思想,数据库白名单策略限制非法设备对数据库进行访问。这是这次配置监听白名单的整个背景。

二、技术策略:

编辑sqlnet.ora文件

#开启ip限制功能

1tcp.validnode_checking= yes

#允许访问数据库的IP地址列表,多个IP地址使用逗号分开

1tcp.invited_nodes=(192.168.1.5,192.168.1.6,10.10.10.2)

#禁止访问数据库的IP地址列表,多个IP地址使用逗号分开

1tcp.excluded_nodes=(192.168.1.1,10.10.10.1)

注:

1、需要重启监听器生效。

2、这个方式只是适合TCP协议,适用于9i以上版本。在9i之前的版本使用文件protocol.ora。

3、第二行和第三行任写一行即可,如果tcp.invited_nodes与tcp.excluded_nodes都存在,以tcp.invited_nodes为主。

4、不要禁止服务器本机的IP地址,否则通过lsnrctl将不能启动或停止监听,因为该过程监听程序会通过本机的IP访问监听器。

三、操作步骤

3.1 从监听日志中获取层级访问的设备地址:

1 2 3 4 5 6 7grep HOST listener.log | awk -F 'HOST=' '{print $3}' | awk '{print $1}' | awk -F ')' '{print $1}' | grep - v jdbc| sort | uniq | wc -l && grep HOST listener.log | awk -F 'HOST=' '{print $3}' | awk '{print $1}' | awk -F ')' '{print $1}' | grep - v jdbc| sort | uniq 5 192.168.1.1 192.168.1.2 192.168.1.3 192.168.1.4 192.168.1.71

3.2 地址格式化

1 2tr -s "\n" "," echo 192.168.1.1,192.168.1.2,192.168.1.3,192.168.1.4,192.168.1.71

3.3 编辑sqlnet.ora

1 2 3[oracle@TestDB /u01/app/oracle/product/11 .2.0 /db_1/network/admin ]$ cat sqlnet.ora tcp.validnode_checking= yes tcp.invited_nodes=(192.168.1.1,192.168.1.2,192.168.1.3,192.168.1.4,192.168.1.71)

3.4 关闭监听

1 2 3 4 5[oracle@TestDB /u01/app/oracle/product/11 .2.0 /db_1/network/admin ]$lsnrctl stop LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 28-JUL-2020 19:30:20 Copyright (c) 1991, 2013, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=TestDB)(PORT=1521))) The command completed successfully

3.5 重新启动监听

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26[oracle@TestDB /u01/app/oracle/product/11 .2.0 /db_1/network/admin ]$lsnrctl start LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 28-JUL-2020 19:30:25 Copyright (c) 1991, 2013, Oracle. All rights reserved. Starting /u01/app/oracle/product/11 .2.0 /db_1/bin/tnslsnr : please wait... TNSLSNR for Linux: Version 11.2.0.4.0 - Production System parameter file is /u01/app/oracle/product/11 .2.0 /db_1/network/admin/listener .ora Log messages written to /u01/app/oracle/diag/tnslsnr/TestDB/listener/alert/log .xml Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=TestDB)(PORT=1521))) Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521))) Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=TestDB)(PORT=1521))) STATUS of the LISTENER ------------------------ Alias LISTENER Version TNSLSNR for Linux: Version 11.2.0.4.0 - Production Start Date 28-JUL-2020 19:30:25 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 /db_1/network/admin/listener .ora Listener Log File /u01/app/oracle/diag/tnslsnr/TestDB/listener/alert/log .xml Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=TestDB)(PORT=1521))) (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521))) The listener supports no services The command completed successfully

3.6 手工注册监听

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31[oracle@TestDB /u01/app/oracle/product/11 .2.0 /db_1/network/admin ]$sqlplus / as sysdba SQL*Plus: Release 11.2.0.4.0 Production on Tue Jul 28 19:30:29 2020 Copyright (c) 1982, 2013, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options SQL> alter system register; System altered. SQL> !lsnrctl status LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 28-JUL-2020 19:30:36 Copyright (c) 1991, 2013, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=TestDB)(PORT=1521))) STATUS of the LISTENER ------------------------ Alias LISTENER Version TNSLSNR for Linux: Version 11.2.0.4.0 - Production Start Date 28-JUL-2020 19:30:25 Uptime 0 days 0 hr. 0 min. 11 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /u01/app/oracle/product/11 .2.0 /db_1/network/admin/listener .ora Listener Log File /u01/app/oracle/diag/tnslsnr/TestDB/listener/alert/log .xml Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=TestDB)(PORT=1521))) (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521))) Services Summary... Service "ORCL" has 1 instance(s). Instance "ORCL1" , status READY, has 1 handler(s) for this service... Service "ORCL1XDB" has 1 instance(s). The command completed successfully

原文链接:http://blog.itpub.net/20674423/viewspace-2707617/

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