Linux下配置Oracle监听器
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1. 修改监听器配置文件
Linux下Oracle监听器配置文件在:$ ORACLE_HOME/network/admin/listerer.ora, 如:
$ ORACLE_HOME=/u01/oracle/app/product/11.2.0/dbhome_1
修改并配置要监听SID的相关信息,如:
#listener.ora Network Configuration File:/u01/oracle/app/product/11.2.0/dbhome_1/network/admin/listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /bank/oracle/oracle10g/product/10.2.0)
(PROGRAM = extproc)
)
(SID_DESC =
(GLOBAL DBNAME = orcl)
(SID_NAME = orcl)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
)
)
2. 启动监听器
(1). 切换至oracle安装用户(一般为oracle)
su - oracle
(2). 启动监听器
lsnrctl start
另:停止监听器
lsnrctl stop
3. 测试监听器是否运行正常
在客户端修改tnsnames.ora配置文件就访问Oracle数据库,如:
BKSERVER =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
通过命令tnsping测试是否能访问到监听器,如:
$ tnsping orcl
已使用 TNSNAMES 适配器来解析别名
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)
(HOST = localhost)(PORT = 1521))) (CONNECT_DATA = (SERVER = DEDICATED) (SERVIC
E_NAME = orcl)))
OK (20 毫秒)
注意: 监听器是否能被tnsping通跟数据库的开启/关闭无关,所以就算可以tnsping通监听器但未必能连接到数据库,这时请检查listener.ora文件配置信息是否正确,还有数据库是否已经被开启。
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