Oracle设定允许访问数据库的IP
oracle服务器 192.168.1.9 Linux
oracle客户机 192.168.1.6 Windows
192.168.1.6 tnsping 192.168.1.9
Microsoft Windows [版本 5.2.3790](C) 版权所有 1985-2003 Microsoft Corp.C:\Documents and Settings\Administrator>tnsping 192.168.1.9TNS Ping Utility for 64-bit Windows: Version 11.2.0.1.0 - Production on 09-11月-2012 10:20:40Copyright (c) 1997, 2010, Oracle. All rights reserved.已使用的参数文件:C:\oracle11g\product\11.2.0\dbhome_2\NETWORK\ADMIN\sqlnet.ora已使用 EZCONNECT 适配器来解析别名尝试连接 (DESCRIPTION=(CONNECT_DATA=(SERVICE_NAME=))(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.95)(PORTOK (20 毫秒)
?修改192.168.1.9上的sqlnet.ora，添加
tcp.validnode_checking = yestcp.invited_nodes = (192.168.1.9)
之后运行
lsnrctl reload?
?
然后在192.168.1.6上重新tnsping 192.168.1.9
C:\Documents and Settings\Administrator>tnsping 192.168.1.9TNS Ping Utility for 64-bit Windows: Version 11.2.0.1.0 - Production on 09-11月-2012 10:21:07Copyright (c) 1997, 2010, Oracle. All rights reserved.已使用的参数文件:C:\oracle11g\product\11.2.0\dbhome_2\NETWORK\ADMIN\sqlnet.ora已使用 EZCONNECT 适配器来解析别名尝试连接 (DESCRIPTION=(CONNECT_DATA=(SERVICE_NAME=))(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.95)(PORTTNS-12547: TNS: 丢失连接
?192.168.1.6上的Toad 连192.168.1.9，报错ORA-12537: TNS:connection closed
?
另有tcp.excluded_nodes可用，与tcp.invited_nodes同时存在的话，优先使用tcp.invited_nodes
?
?
当192.168.1.9不在tcp.invited_nodes中时，192.168.1.6上的tomcat报错如下：
2012-11-09 10:54:23,093 WARN [org.hibernate.util.JDBCExceptionReporter] - SQL Error: 17002, SQLState: null2012-11-09 10:54:23,093 ERROR [org.hibernate.util.JDBCExceptionReporter] - Io 异常: Got minus one from a read call
