虚拟机Linux上，连接windows的oracle，连不上。解决方法。

https://www.pianshen.com/article/9301357618/

https://www.cnblogs.com/grey-wolf/p/10529532.html#_label2_0

按照网上文章上安装了windows的oracle。

listener.ora文件是这样。

==========================================================================

# listener.ora Network Configuration File: E:\Program Files\Oracle\Instant Client\network\admin\listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = F:\oracle_11g\product\11.2.0\dbhome_1)
(PROGRAM = extproc)
(ENVS = "EXTPROC_DLLS=ONLY:F:\oracle_11g\product\11.2.0\dbhome_1\bin\oraclr11.dll")
)
)

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

ADR_BASE_LISTENER = F:\oracle_11g

==========================================================================

在windows上用PL/SQL连127.0.0.1/orcl，连的上。

listener.ora改成虚拟机Linux的ip，连接windows的oracle，连不上。

（好像是这里的ip只能用127.0.0.1，设成其他的就报错 ORA-12514: TNS:listener does not currently know of service requested in connect descriptor，

在windows上PL/SQL连192.168.241.110/orcl也报同样的错）