----修改服务端监听的端口号为1526：

--配置服务端listener.ora文件：
[oracle@enmo admin]$ vi listener.ora
# listener.ora Network Configuration File: /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
# Generated by Oracle configuration tools.
LSNR2 =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = enmo)(PORT = 1526))
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1526))
)
)

--配置服务端tnsnames.ora文件：
[oracle@enmo admin]$ vi tnsnames.ora
LSNR2 =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = enmo)(PORT = 1526))
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1526))
)
)
~

--修改服务端的默认监听：
SQL> alter system set local_listener='LSNR2';
System altered.

--启动端口号为1526的监听：
[oracle@enmo admin]$ lsnrctl
LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 03-NOV-2016 23:31:36
Copyright (c) 1991, 2013, Oracle. All rights reserved.
Welcome to LSNRCTL, type "help" for information.
LSNRCTL>
LSNRCTL> start lsnr2
Starting /u01/app/oracle/product/11.2.0/dbhome_1/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 11.2.0.4.0 - Production
System parameter file is /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
Log messages written to /u01/app/oracle/diag/tnslsnr/enmo/lsnr2/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=enmo.oracle.com)(PORT=1526)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1526)))

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=enmo)(PORT=1526)))
STATUS of the LISTENER
------------------------
Alias lsnr2
Version TNSLSNR for Linux: Version 11.2.0.4.0 - Production
Start Date 03-NOV-2016 23:31:54
Uptime 0 days 0 hr. 0 min. 1 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
Listener Log File /u01/app/oracle/diag/tnslsnr/enmo/lsnr2/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=enmo.oracle.com)(PORT=1526)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1526)))
The listener supports no services
The command completed successfully
LSNRCTL>

--主动注册数据库到监听器：
SQL> alter system register;
System altered.

--再次查看监听的状态：
LSNRCTL> status lsnr2
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=enmo)(PORT=1526)))
STATUS of the LISTENER
------------------------
Alias lsnr2
Version TNSLSNR for Linux: Version 11.2.0.4.0 - Production
Start Date 03-NOV-2016 23:31:54
Uptime 0 days 0 hr. 1 min. 44 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
Listener Log File /u01/app/oracle/diag/tnslsnr/enmo/lsnr2/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=enmo.oracle.com)(PORT=1526)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1526)))
Services Summary...
Service "PROD" has 1 instance(s).
Instance "PROD", status READY, has 1 handler(s) for this service...
Service "PRODXDB" has 1 instance(s).
Instance "PROD", status READY, has 1 handler(s) for this service...
The command completed successfully
LSNRCTL>
#看到端口号为1526的监听器正常工作。

--客户端配置tnsnames.ora文件：
[oracle@host01 admin]$ vi tnsnames.ora
# tnsnames.ora Network Configuration File: /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
ORA11 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.2.6)(PORT = 1526))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = PROD)
)
)

--尝试使用连接串tnsping通服务端：
[oracle@host01 admin]$ tnsping ora11

TNS Ping Utility for Linux: Version 11.2.0.4.0 - Production on 03-NOV-2016 23:36:33
Copyright (c) 1997, 2013, Oracle. All rights reserved.

Used parameter files:
/u01/app/oracle/product/11.2.0/dbhome_1/network/admin/sqlnet.ora

Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.2.6)(PORT = 1526)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = PROD)))
OK (0 msec)
[oracle@host01 admin]$
[oracle@host01 admin]$

--尝试连接服务端数据库PROD库：
[oracle@host01 admin]$ sqlplus sys/oracle@ora11 as sysdba
SQL*Plus: Release 11.2.0.4.0 Production on Thu Nov 3 23:37:52 2016
Copyright (c) 1982, 2013, Oracle. All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> show parameter service
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
service_names string PROD
SQL>

--在Windows使用EZCONNECT连接：
C:\Users\Asus>
C:\Users\Asus>sqlplus sys/oracle@192.168.2.6:1526/PROD as sysdba
SQL*Plus: Release 11.2.0.1.0 Production on 星期四 11月 3 23:40:45 2016
Copyright (c) 1982, 2010, Oracle. All rights reserved.

连接到:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> show parameter service
NAME TYPE
------------------------------------ ----------------------
VALUE
------------------------------
service_names string
PROD
SQL>
修改成功。

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修改服务端监听器端口号为1526

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