F:\Java\Oracle\product\11.2.0\dbhome_1\NETWORK\ADMIN\sqlnet.ora

修改sqlnet.ora文件增加两行

# like12 add,20231025,IP白名单限制
TCP.VALIDNODE_CHECKING=yes
TCP.INVITED_NODES=(WIN-I4HJRGH080V,127.0.0.1,xxx.xxx.xxx.xxx)

注意：需要将计算机名hostname添加进去 否则本机PL/SQL工具连接不了 

完整示例为：

# sqlnet.ora Network Configuration File: F:\Java\Oracle\product\11.2.0\dbhome_1\network\admin\sqlnet.ora
# Generated by Oracle configuration tools.# This file is actually generated by netca. But if customers choose to 
# install "Software Only", this file wont exist and without the native 
# authentication, they will not be able to connect to the database on NT.SQLNET.AUTHENTICATION_SERVICES= (NTS)NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)# like12 add,20231025,IP白名单限制
TCP.VALIDNODE_CHECKING=yes
TCP.INVITED_NODES=(WIN-I4HJRGH080V,127.0.0.1,58.42.241.105)

可能不需要的操作：

修改listener.ora文件 增加一段

    # like12 add,20231025,IP白名单限制(SID_DESC =(GLOBAL_NAME = orcl)(ORACLE_HOME = F:\Java\Oracle\product\11.2.0\dbhome_1)(SID_NAME = orcl))

完整示例为：

# listener.ora Network Configuration File: F:\Java\Oracle\product\11.2.0\dbhome_1\network\admin\listener.ora
# Generated by Oracle configuration tools.SID_LIST_LISTENER =(SID_LIST =(SID_DESC =(SID_NAME = CLRExtProc)(ORACLE_HOME = F:\Java\Oracle\product\11.2.0\dbhome_1)(PROGRAM = extproc)(ENVS = "EXTPROC_DLLS=ONLY:F:\Java\Oracle\product\11.2.0\dbhome_1\bin\oraclr11.dll"))# like12 add,20231025,IP白名单限制(SID_DESC =(GLOBAL_NAME = orcl)(ORACLE_HOME = F:\Java\Oracle\product\11.2.0\dbhome_1)(SID_NAME = orcl)))LISTENER =(DESCRIPTION_LIST =(DESCRIPTION =(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))(ADDRESS = (PROTOCOL = TCP)(HOST = WIN-I4HJRGH080V)(PORT = 1521))))ADR_BASE_LISTENER = F:\Java\Oracle