作者：iamlaosong

oracle数据库服务器IP改变后，监听进程无法启动，需要修改相应的配置文件：

1、服务器端$ORACLE_HOME/network/admin/listener.ora修改address的host即可。监听进程负责监听网络上发来请求，然后响应，修改后重新启动LISTENER。即：

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
      (ADDRESS = (PROTOCOL = TCP)(HOST = 10.178.40.196)(PORT = 1521))
    )
  )

2、客户端tnsnames.ora修改address的host即可，客户端无需重启。路径C:\oracle\product\10.2.0\client_1\NETWORK\ADMIN，这个路径会随版本和安装点变化。即：

DL580 =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 10.178.41.253)(PORT = 1521))
    )
    (CONNECT_DATA =http://www.mamicode.com/
      (SERVICE_NAME = orcl)
    )
  )

ORACLE修改IP地址后如何能够使用