redhat服务器上oracle数据库开启允许远程连接

oracle安装完成之后，默认是不开启远程连接的，如果需要开启允许远程访问，需要作出以下配置

1、vi $ORACLE_HOME/network/admin/listeners.ora

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

# 配置监听的服务ID
SID_LIST_LISTENER =
(SID_LIST =
  (SID_DESC =
    (GLOBAL_DBNAME=orcl)
    (SID_NAME=orcl)
    (ORACLE_HOME=/oracle)
  )
)

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
      # 修改监听地址
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.100.1)(PORT = 1521))
    )
  )

ADR_BASE_LISTENER = /oracle

 

2、vi $ORACLE_HOME/network/admin/tnsnames.ora

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

LISTENER_ORCL = 
  (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.100.1)(PORT = 1521))

ORCL =
  (DESCRIPTION =
    (ADDRESS_LIST =
      # 修改监听地址
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.100.1)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = orcl)
    )
  )

3、关闭防火墙

systemctl stop firewalld.service