如何解决TNS-12545：连接失败，因为目标主机或对象不存在
我正在尝试在Azure云VM上配置Oracle数据库18C。 我已经安装了Oracle数据库，现在尝试配置监听器 我已经为虚拟机设置了公共静态IPv4地址 当我尝试在侦听器和tnsnames文件中添加IP地址时，出现此错误
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</body>这是我的listener.ora和tsnnames.ora文件的配置。
Error listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=IP)(PORT=1521)))
TNS-12545: Connect failed because target host or object does not exist
TNS-12560: TNS:protocol adapter error
TNS-00515: Connect failed because target host or object does not exist
64-bit Windows Error: 49: Unknown error
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = CLRExtProc)
(PROGRAM = extproc)
(ENVS = "EXTPROC_DLLS=ONLY:E:\app\Oracle\product\11.2.0\dbhome_1\bin\oraclr11.dll")
)
(SID_DESC =
(SID_NAME = ORCL)
)
)
LISTENER =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = IPaddress)(PORT = 1521))
)
ADR_BASE_LISTENER = C:\Oracle\Oracle18C\log
当我尝试使用本地计算机时，Ping正在使用IP地址 当我尝试使用主机名“ oraclevm”时，侦听器便能够启动
解决方法
以下是listener.ora的有效示例
[oracle@ol7-19 ~]$ cd $ORACLE_HOME/network/admin
[oracle@ol7-19 admin]$ more listener.ora
# listener.ora Network Configuration File: /home/oracle/Downloads/19c/network/admin/listener.ora
# Generated by Oracle configuration tools.
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = ol7-19.localdomain)(PORT = 1521))
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
)
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