两台机器
stefan.example.com(rhel5) 192.168.0.77
db.example.com(rhel5) 192.168.0.88
各运行了一个库，实例名分别为stefan、db
2011年12月7日
13:22
已配置好网络监听。
[oracle@db ~]$ tnsping stefan
TNS Ping Utility for Linux: Version 10.2.0.1.0 - Production on 07-DEC-2011 15:09:05
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = stefan.example.com)(PORT = 1521))) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = stefan)))
OK (10 msec)
...
"