求解:ora-28547:连接服务器失败，可能是 Oracle Net 管理失败

客户端版本是10.2.0.1.0 32位， 服务器是9.2.0.4.0 64位。客户端连接服务器报ORA-28547: 连接服务器失败, 可能是 Oracle Net 管理错误。

状况如下：

C:\>sqlplus "sys/oracle@vm9i as sysdba"

SQL*Plus: Release 10.2.0.1.0 - Production on 星期四 1月 7 13:41:20 2010

Copyright (c) 1982, 2005, Oracle. All rights reserved.

ERROR:

ORA-28547: 连接服务器失败, 可能是 Oracle Net 管理错误

请输入用户名:

ERROR:

ORA-01017: 用户名/口令无效; 登录被拒绝

请输入用户名:

ERROR:

ORA-01017: 用户名/口令无效; 登录被拒绝

SP2-0157: 在 3 次尝试之后无法连接到 ORACLE, 退出 SQL*Plus

而本地登录报ORA-03113错误。

[oracle@PENG admin]$ sqlplus system/oracle@vm9i

SQL*Plus: Release 9.2.0.4.0 - Production on Thu Jan 7 09:16:08 2010

Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.

ERROR:

ORA-03113: end-of-file on communication channel

Enter user-name:

ERROR:

ORA-01017: invalid username/password; logon denied

Enter user-name:

ERROR:

ORA-01017: invalid username/password; logon denied

SP2-0157: unable to CONNECT to ORACLE after 3 attempts, exiting SQL*Plus

本地操作系统认证登录却没问题

[oracle@PENG admin]$ sqlplus "sys/oracle@vm9i as sysdba"

SQL*Plus: Release 9.2.0.4.0 - Production on Thu Jan 7 09:19:12 2010

Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.

Connected to:

Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit Production

With the Partitioning, OLAP and Oracle Data Mining options

JServer Release 9.2.0.4.0 - Production

SQL>

[oracle@PENG admin]$ tnsping vm9i

TNS Ping Utility for Linux: Version 9.2.0.4.0 - Production on 07-JAN-2010 09:19:38

Copyright (c) 1997 Oracle Corporation. All rights reserved.

Used parameter files:

Used TNSNAMES adapter to resolve the alias

Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.222)(PORT = 1521)) (CONNECT_DATA = (SERVICE_NAME = dbtest) (INSTANCE_NAME = dbtest)))

OK (10 msec)

最后检查了一下监听程序的配置文件 发现多了 (PROGRAM = extproc)

[oracle@PENG admin]$ vi listener.ora

SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(SID_NAME = PLSExtProc)

(ORACLE_HOME = /u01/app/oracle)

(PROGRAM = extproc)

)

(SID_DESC =

(SID_NAME = dbtest)

(ORACLE_HOME = /u01/app/oracle)

(PROGRAM = extproc)

)

)

LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.222)(PORT = 1521))

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))

)

)

手工配置监听的时候，从上面COPY下来的 就后面的那个没去掉。去掉 (PROGRAM = extproc)

保存退出。

本地登录：

[oracle@PENG ~]$ sqlplus system/oracle@vm9i

SQL*Plus: Release 9.2.0.4.0 - Production on Thu Jan 7 09:24:59 2010

Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.

Connected to:

Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit Production

With the Partitioning, OLAP and Oracle Data Mining options

JServer Release 9.2.0.4.0 - Production

SQL>

客户端登陆：

C:\>sqlplus admin/admin@vm9i

SQL*Plus: Release 10.2.0.1.0 - Production on 星期四 1月 7 14:12:25 2010

Copyright (c) 1982, 2005, Oracle. All rights reserved.

连接到:

Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit Production

With the Partitioning, OLAP and Oracle Data Mining options

JServer Release 9.2.0.4.0 - Production

SQL>