Question

我已经在Oracle Enterprise Linux中安装了VirtualBox映像。它包含已安装的Oracle Database 12.1.0。

在虚拟机网络设置中，我选择“Bridget Adapter”。接下来在Linux上我配置了连接设置：静态IP地址：192.168.0.110

现在我可以使用ping 192.168.0.110 ping到虚拟机。

虚拟机上的文件：

的tnsnames.ora：

# tnsnames.ora Network Configuration File: /u01/app/oracle/product/12.1.0/dbhome_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
ORCL =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = orcl)
    )
  )
pdb1 =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = pdb1)
    )
  )

的listener.ora：

# listener.ora Network Configuration File: /u01/app/oracle/product/12.1.0/dbhome_1/network/admin/listener.ora
# Generated by Oracle configuration tools.

LISTENER =
  (DESCRIPTION_LIST =
 (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP) (HOST = 0.0.0.0) (PORT = 80))
      (PROTOCOL_STACK = (PRESENTATION = HTTP) (SESSION = RAW))
    )
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP) (HOST = 0.0.0.0) (PORT = 21))
      (PROTOCOL_STACK = (PRESENTATION = FTP) (SESSION = RAW))
    )


    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )

  )

现在我尝试使用以下连接属性从主机（Windows）连接我的数据库：用户名：system 密码：oracle 主机名：192.168.0.110 港口：1521 服务名称：orcl

我收到以下错误：网络适配器无法建立连接

Answer 1

检查oracle企业级Linux防火墙中的端口1521是否已打开，或者这只是一个测试系统禁用防火墙。

如果您在主机上有telnet可用，您可以通过端口1521 telnet到guest虚拟机并查看您获得的响应 - 对调试很有用

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