启动远程图形界面登录的工具
- [root@db11g ~]# vncserver
监听的启动- [oracle@db11g ~]$ lsnrctl start
- [oracle@db11g ~]$ netstat -tulnp | grep 1521
- (Not all processes could be identified, non-owned process info
- will not be shown, you would have to be root to see it all.)
- tcp 0 0 :::1521 :::* LISTEN 1440/tnslsnr
-- 1440：监听对应的进程编号
-- ::: 表示所有的IP地址都启动1521端口
检察监听状态- [oracle@db11g ~]$ lsnrctl status -- 这个命令默认是：lsnrctl status listener
- LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 13-JAN-2017 02:56:53
- Copyright (c) 1991, 2013, Oracle. All rights reserved.
- Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=db11g)(PORT=1521)))
- STATUS of the LISTENER
- ------------------------
- Alias LISTENER
- Version TNSLSNR for Linux: Version 11.2.0.4.0 - Production
- Start Date 10-JAN-2017 19:47:03
- Uptime 2 days 7 hr. 9 min. 49 sec
- Trace Level off
- Security ON: Local OS Authentication
- SNMP OFF
- Listener Parameter File /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora
- Listener Log File /u01/app/oracle/diag/tnslsnr/db11g/listener/alert/log.xml
- Listening Endpoints Summary…
- (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=db11g)(PORT=1521)))
- (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
- Services Summary…
- 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…
- The command completed successfully
- [oracle@db11g ~]$ ps -ef | grep 1440
- oracle 1440 1 0 Jan10 ? 00:00:11 /u01/app/oracle/product/11.2.0/db_1/bin/tnslsnr LISTENER -inherit
- oracle 13687 13645 0 02:59 pts/0 00:00:00 grep 1440
监听的配置文件
1、listener.ora文件（主要配置监听）
listener.ora文件：服务器端的（启动监听的时间读listener.ora文件）
listener.ora文件位置：- [oracle@db11g ~]$ cd /u01/app/oracle/product/11.2.0/db_1/network/admin
- [oracle@db11g admin]$ ls
- listener.ora samples shrept.lst tnsnames.ora
没有listener.ora文件时：
假如没有listener.ora配置文件，监听也可以启动，默认使用1521端口，所有IP都启动1521端口，下图表明：
默认情况下，以后通过所有的IP地址都可以毗连
检察恣意一个IP地址是否启动1521端口，启动着1521端口都可以毗连上数据库实例
以192.168.56.70为例：- [oracle@db11g ~]$ telnet 192.168.56.70 1521
这就表示着：在192.168.56.70地址上启动着1521端口
然后ctrl+c退出
启动数据库实例：- [oracle@db11g ~]$ sqlplus / as sysdba --登录数据库
- SQL*Plus: Release 11.2.0.4.0 Production on Fri Jan 13 06:02:46 2017
- 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> startup --启动数据库实例
只想要某一个IP地址启动1521端口，例如：只想在192.168.56.70这个IP地址上启动1521端口，这时要去生成一个配置文件：
1、使用vnc毗连上数据库
2、点击continue按钮
3、输入暗码，点击OK
点击'X'关闭
打开open terminal
4、使用netca下令配置监听，可以生成listener.ora这个文件：
首先Set and export DISPLAY（指定图像映射机器）：- [oracle@db11g admin]$ export DISPLAY=192.168.56.1:0.0
5、选择listener configuration，点击next
6、由于没有listener.ora这个文件，所以选择Add，点击next
7、监听的名字，默认就要LISTENER，点击next
8、选择TCP，点击next
9、选择默认端口1521
10、选择No，点击next
11、点击finish
配置完成
12、检察配置完成的listener.ora文件：- [oracle@db11g ~]$ cd $ORACLE_HOME
- [oracle@db11g db_1]$ cd network/admin
- [oracle@db11g admin]$ ls
- listener.ora samples shrept.lst tnsnames.ora
- # listener.ora Network Configuration File: /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora
- # Generated by Oracle configuration tools.
- LISTENER =
- (DESCRIPTION_LIST =
- (DESCRIPTION =
- (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.56.70)(PORT = 1521)) --将原来的主机名改为IP地址：192.168.56.70
- (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
- )
- )
- ADR_BASE_LISTENER = /u01/app/oracle
14、重新启动监听- [oracle@db11g admin]$ lsnrctl stop -- 关闭监听
- LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 16-JAN-2017 15:08:18
- Copyright (c) 1991, 2013, Oracle. All rights reserved.
- Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.56.12)(PORT=1521)))
- The command completed successfully
- [oracle@db11g admin]$ lsnrctl start -- 启动监听
- [oracle@db11g admin]$ lsnrctl status --查看监听状态
- LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 16-JAN-2017 15:09:53
- Copyright (c) 1991, 2013, Oracle. All rights reserved.
- Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.56.12)(PORT=1521)))
- STATUS of the LISTENER
- ------------------------
- Alias LISTENER
- Version TNSLSNR for Linux: Version 11.2.0.4.0 - Production
- Start Date 16-JAN-2017 15:09:04
- Uptime 0 days 0 hr. 0 min. 49 sec
- Trace Level off
- Security ON: Local OS Authentication
- SNMP OFFL
- istener Parameter File /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora
- Listener Log File /u01/app/oracle/diag/tnslsnr/db11g/listener/alert/log.xml
- Listening Endpoints Summary…
- (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.56.12)(PORT=1521)))
- (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
- Services Summary…
- Service "orcl" has 1 instance(s).
- Instance "orcl", status READY, has 1 handler(s) for this service… --说明监听已成功启动
- Service "orclXDB" has 1 instance(s).
- Instance "orcl", status READY, has 1 handler(s) for this service…
- The command completed successfully
- [oracle@db11g admin]$ netstat -tulpn | grep 1521
- (Not all processes could be identified, non-owned process info
- will not be shown, you would have to be root to see it all.)
- tcp 0 0 192.168.56.70:1521 0.0.0.0:* LISTEN 1583/tnslsnr
监听的静态注册
- 我们也可以建立多个监听，但是pmonitor默认是往名字为LISTENER的监听里注册instancename和servername，就会导致使用其他监听连接数据库实例的时候连接不上
如何静态注册监听？
1、使用netmgr下令：- [oracle@db11g admin]$ netmgr
3、选择add database
4、输入global database name：cis1（服务名，可以自己输入），SID：cis（数据库实例名）
5、生存，然后退出
6、重启监听listener1，检察状态- [oracle@db11g admin]$ lsnrctl reload listener1
- [oracle@db11g admin]$ lsnrctl status listener1
静态注册的监听listener1：
status的几个状态
- 1、ready：可以连接，动态注册
- 2、blocked：不可以连接，动态注册
- 3、unknown：静态注册，是否可以连接取决于实例是否启动
多个监听
1、两个名字：
一个ip、两个端口
两个ip、一个端口
2、一个名字：
一个ip、两个端口，但是只起一个进程
两个ip、一个端口
一般情况我们说的是：两个名字、两个ip、同一个端口，listener1静态注册的
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