我在我的mac上在Centos VM上安装了11g.我已经完成所有工作并在服务器上运行.我已经包含了以下命令,我在cenos上运行.

$lsnrctl状态

LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 23-JUN-2014 14:49:41

Copyright (c) 1991, 2009, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=hayer)(PORT=1522)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.2.0.1.0 - Production
Start Date                23-JUN-2014 14:03:58
Uptime                    0 days 0 hr. 45 min. 42 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora
Listener Log File         /u01/app/oracle/diag/tnslsnr/hayer/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=hayer)(PORT=1522)))
Services Summary...
Service "orcl" has 1 instance(s).
  Instance "orcl", status READY, has 1 handler(s) for this service...
Service "orclXDB" has 1 instance(s).
  Instance "orcl", status READY, has 1 handler(s) for this service...
The command completed successfully

我的tnsnames.ora文件如下：

# tnsnames.ora Network Configuration File: /u01/app/oracle/product/11.2.0/db_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.

LISTENER_ORCL =
  (ADDRESS = (PROTOCOL = TCP)(HOST = hayer)(PORT = 1522))


ORCL =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = hayer)(PORT = 1522))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = orcl)
      (SID = orcl)
    )
  )

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在Centos服务器上我也可以使用sqlplus登录.我将Windows上的tnsnames.ora更改为与server相同.我在Windows主机文件中添加了oracle主机信息,我可以在端口1522上ping oracle主机和telnet主机.

我已禁用服务iptables,因此centos上不存在任何类型的防火墙.

但我仍然在Windows客户端上出现以下错误：

SQL*Plus: Release 11.2.0.1.0 Production on Mon Jun 23 14:51:31 2014

Copyright (c) 1982, 2010, Oracle.  All rights reserved.

Enter user-name: system as sysdba
Enter password:
ERROR:
ORA-12560: TNS:protocol adapter error


Enter user-name: system as sysdba
Enter password:
ERROR:
ORA-12560: TNS:protocol adapter error

解决方法:

在Windows客户端上,您需要指定TNS别名@ORCL,否则它会假定您正在尝试连接到Windows客户端上运行的本地数据库,而该客户端没有.此外,系统通常不使用sysdba,甚至不确定是否有意义.使用SYS作为sysdba和普通系统.

Enter user-name: system@ORCL
Enter password:

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning option

如果您的Windows客户端上没有设置tnsnames.ora,您仍然可以通过EZCONNECT字符串@“hayer：1522 / orcl”连接,而不是设置tnsnames(是的,需要引号).

Enter user-name: system@"hayer:1522/orcl"
Enter password:

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning option