外部的PLSQL无法连接Linux上的oracle数据库，出现ORA-12541 TNS 无监听程序错误。待解决。
[oracle@OracleDB ~]$ lsnrctl status
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 10-APR-2015 12:08:26
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1522)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.1.0 - Production
Start Date 10-APR-2015 11:31:11
Uptime 0 days 0 hr. 37 min. 14 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /opt/oracle/11g/network/admin/listener.ora
Listener Log File /opt/oracle/diag/tnslsnr/OracleDB/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1522)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=OracleDB)(PORT=1522)))
Services Summary...
Service "orc1XDB" has 1 instance(s).
Instance "orc1", status READY, has 1 handler(s) for this service...
Service "orcl" has 1 instance(s).
Instance "orc1", status READY, has 1 handler(s) for this service...
The command completed successfully
tnsnames.ora文件
orc1 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = OracleDB)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = orc1)
)
)
收起