环境：

=====

已经安装好Oracle,并且可以对数据进行正常操作：

OS: Red Hat Enterprise Linux Server release 7.2 (Maipo)

Oracle:12c Enterprise Edition Release 12.2.0.1.0

主机名：node01

数据库名：orcl

ORACLE_HOME:/home/oracle/app/oracle/product/12.2.0/dbhome_1/

步骤：

=====

1. 查看监听状态

[oracle@node01]$ lsnrctl status

LSNRCTL for Linux: Version 12.2.0.1.0 - Production on 14-FEB-2018 10:11:13

Copyright (c) 1991, 2016, Oracle. All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=node01)(PORT=1521)))

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=IPC)(KEY=EXTPROC1521)))

TNS-12541: TNS:no listener

TNS-12560: TNS:protocol adapter error

TNS-00511: No listener

Linux Error: 111: Connection refused

2. 配置listener.ora和tnsnames.ora文件

[oracle@node01]$ cat $ORACLE_HOME/network/admin/listener.ora

# listener.ora Network Configuration File: /home/oracle/app/oracle/product/12.2.0/dbhome_1/network/admin/listener.ora

# Generated by Oracle configuration tools.

LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = node01)(PORT = 1521))

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))

)

)

[oracle@node01]$ cat $ORACLE_HOME/network/admin/tnsnames.ora

orcl =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.95.129)(PORT = 1521))

)

(CONNECT_DATA =

(SERVICE_NAME = orcl)

)

)

3. 启动监听并再次查看监听状态

[oracle@node01]$ lsnrctl start

LSNRCTL for Linux: Version 12.2.0.1.0 - Production on 14-FEB-2018 10:12:19

Copyright (c) 1991, 2016, Oracle. All rights reserved.

Starting /home/oracle/app/oracle/product/12.2.0/dbhome_1/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 12.2.0.1.0 - Production

System parameter file is /home/oracle/app/oracle/product/12.2.0/dbhome_1/network/admin/listener.ora

Log messages written to /home/oracle/app/oracle/diag/tnslsnr/node01/listener/alert/log.xml

Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=node01)(PORT=1521)))

Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=node01)(PORT=1521)))

STATUS of the LISTENER

------------------------

Alias LISTENER

Version TNSLSNR for Linux: Version 12.2.0.1.0 - Production

Start Date 14-FEB-2018 10:12:20

Uptime 0 days 0 hr. 0 min. 0 sec

Trace Level off

Security ON: Local OS Authentication

SNMP OFF

Listener Parameter File /home/oracle/app/oracle/product/12.2.0/dbhome_1/network/admin/listener.ora

Listener Log File /home/oracle/app/oracle/diag/tnslsnr/node01/listener/alert/log.xml

Listening Endpoints Summary...

(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=node01)(PORT=1521)))

(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))

The listener supports no services

The command completed successfully

[oracle@node01]$ lsnrctl status

LSNRCTL for Linux: Version 12.2.0.1.0 - Production on 14-FEB-2018 10:13:06

Copyright (c) 1991, 2016, Oracle. All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=node01)(PORT=1521)))

STATUS of the LISTENER

------------------------

Alias LISTENER

Version TNSLSNR for Linux: Version 12.2.0.1.0 - Production

Start Date 14-FEB-2018 10:12:20

Uptime 0 days 0 hr. 0 min. 45 sec

Trace Level off

Security ON: Local OS Authentication

SNMP OFF

Listener Parameter File /home/oracle/app/oracle/product/12.2.0/dbhome_1/network/admin/listener.ora

Listener Log File /home/oracle/app/oracle/diag/tnslsnr/node01/listener/alert/log.xml

Listening Endpoints Summary...

(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=node01)(PORT=1521)))

(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))

(DESCRIPTION=(ADDRESS=(PROTOCOL=tcps)(HOST=node01)(PORT=5500))(Security=(my_wallet_directory=/home/oracle/app/oracle/product/12.2.0/dbhome_1/admin/orcl/xdb_wallet))(Presentation=HTTP)(Session=RAW))

Services Summary...

Service "65055fe26bbe4c50e0530100007f2395" has 1 instance(s).

Instance "orcl", status READY, has 1 handler(s) for this service...

Service "orcl" has 1 instance(s).

Instance "orcl", status READY, has 1 handler(s) for this service...

Service "orclXDB" has 1 instance(s).

Instance "orcl", status READY, has 1 handler(s) for this service...

Service "orclpdb" has 1 instance(s).

Instance "orcl", status READY, has 1 handler(s) for this service...

The command completed successfully

4. 连接测试，两种方式都可以连接

[oracle@node01]$ sqlplus system/qingsong@orcl

SQL*Plus: Release 12.2.0.1.0 Production on Wed Feb 14 10:14:23 2018

Copyright (c) 1982, 2016, Oracle. All rights reserved.

Last Successful login time: Tue Feb 13 2018 22:40:23 +08:00

Connected to:

Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production

SQL> quit

Disconnected from Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production

[oracle@node01]$ sqlplus system/qingsong@'node01:1521/orcl'

SQL*Plus: Release 12.2.0.1.0 Production on Wed Feb 14 10:15:11 2018

Copyright (c) 1982, 2016, Oracle. All rights reserved.

Last Successful login time: Wed Feb 14 2018 10:14:23 +08:00

Connected to:

Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production

SQL> quit

Disconnected from Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production

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