远程连接报错ORA-12154: TNS:could not resolve the connect identifier specified

cyckax

我想A机访问B机的数据库
A机的tnsnames文件
ORCL =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost.localdomain)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = orcl)
    )
  )
or_10 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL=TCP)(HOST=192.168.4.212)(PORT=1521)))
(CONNECT_DATA =
  (SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)



B机的listener.ora文件
LISTENER_CSB =
（DEION_LIST =
（DEION =
（ADDRESS_LIST =
（ADDRESS = （PROTOCOL = TCP）（HOST = 192.168.4.211）（PORT = 1521））
）
）
）

SID_LIST_LISTENER_CSB =
（SID_LIST =
（SID_DESC =
（ORACLE_HOME = /home/oracle/app/oracle/product/11.2.0/dbhome_1）
（SID_NAME = orcl）



请问问题是什么啊？

cyckax

求帮助！！