Oracle 监听器无法启动（TNS-12537，TNS-12560，TNS-00507）

Oracle启动监听报错，提示连接中断[oracle@localhost ~]$ lsnrctl startLSNRCTL for Linux: Version 11.2.0.1.0 - Production on 06-AUG-2014 20:02:16Copyright （c） 1991, 2009, Oracle. All rights reserved.Starting /opt/oracle/11g/bin/tnslsnr: please wait...TNS-12537: TNS:connection closed
TNS-12560: TNS:protocol adapter error
TNS-00507: Connection closed
Linux Error: 29: Illegal seek这样一般是主机名不对，观察监听状态，监听主机名为 localhost:[oracle@localhost ~]$ lsnrctl statusLSNRCTL for Linux: Version 11.2.0.1.0 - Production on 06-AUG-2014 20:02:48Copyright （c） 1991, 2009, Oracle. All rights reserved.Connecting to （DESCRIPTION=（ADDRESS=（PROTOCOL=IPC）（KEY=EXTPROC1521）））
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
Linux Error: 111: Connection refused
Connecting to （DESCRIPTION=（ADDRESS=（PROTOCOL=TCP）（HOST=localhost）（PORT=1521）））
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
Linux Error: 111: Connection refused查看主机名，发现/etc/hosts内localhost只想多个地址，引发监听冲突[root@localhost ~]# cat /etc/hosts
127.0.0.1 localhost.domain localhost
10.4.40.70 localhost修改主机名：1 hostnamehostname oracle2 /etc/hosts127.0.0.1 localhost localhost.domain
192.168.0.1 oracle3 /etc/sysconfig/networkhostname = oracle再次启动,成功[oracle@oracle ~]$ lsnrctl startLSNRCTL for Linux: Version 11.2.0.1.0 - Production on 06-AUG-2014 20:07:41Copyright （c） 1991, 2009, Oracle. All rights reserved.Starting /opt/oracle/11g/bin/tnslsnr: please wait...TNSLSNR for Linux: Version 11.2.0.1.0 - Production
System parameter file is /opt/oracle/11g/network/admin/listener.ora
Log messages written to /opt/oracle/diag/tnslsnr/oracle/listener/alert/log.xml
Listening on: （DESCRIPTION=（ADDRESS=（PROTOCOL=ipc）（KEY=EXTPROC1521）））
Listening on: （DESCRIPTION=（ADDRESS=（PROTOCOL=tcp）（HOST=127.0.0.1）（PORT=1521）））Connecting to （DESCRIPTION=（ADDRESS=（PROTOCOL=IPC）（KEY=EXTPROC1521）））
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.1.0 - Production
Start Date 06-AUG-2014 20:07:43
Uptime 0 days 0 hr. 0 min. 0 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/oracle/listener/alert/log.xml
Listening Endpoints Summary...
（DESCRIPTION=（ADDRESS=（PROTOCOL=ipc）（KEY=EXTPROC1521）））
（DESCRIPTION=（ADDRESS=（PROTOCOL=tcp）（HOST=127.0.0.1）（PORT=1521）））
The listener supports no services
The command completed successfully更多Oracle相关信息见Oracle 专题页面 http://www.linuxidc.com/topicnews.aspx？tid=12本文永久更新链接地址