修改oracle数据库监听端口号
oracle默认端口号是1521.很容易就被黑客扫描到然后天天惦记你的数据库 所以修改默认端口号就很有必要了 1、首先查看监听状态 lsnrctl status 2、关闭监听 lsnrctl stop 3、修改监听文件1521====10001 SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (ORACLE_H
oracle默认端口号是1521.很容易就被黑客扫描到然后天天惦记你的数据库
所以修改默认端口号就很有必要了
1、首先查看监听状态
lsnrctl status
2、关闭监听
lsnrctl stop
3、修改监听文件1521====>10001
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(ORACLE_HOME = /u01/11g)
(SID_NAME = pu)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = target)(PORT = 10001))
)
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
)
)
ADR_BASE_LISTENER = /u01/oracle
4、登陆数据库修改local_listenner
SQL> show parameter local_listener
NAME TYPE
------------------------------------ ----------------------
VALUE
------------------------------
local_listener string
VALUES值为空
修改local_listener参数
SQL> show parameter local_liste
NAME TYPE
------------------------------------ ----------------------
VALUE
------------------------------
local_listener string
SQL> alter system set local_listener="(address = (protocol = tcp)(host = target)
2 (port = 10001))";
System altered.
SQL> show parameter local_lis
NAME TYPE
------------------------------------ ----------------------
VALUE
------------------------------
local_listener string
(address = (protocol = tcp)(ho
st = target)
(port = 10001))
5、启动监听
[oracle@target ~]$ lsnrctl start
LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 10-MAY-2016 16:48:35
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Starting /u01/11g/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 11.2.0.3.0 - Production
System parameter file is /u01/11g/network/admin/listener.ora
Log messages written to /u01/oracle/diag/tnslsnr/target/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=target)(PORT=10001)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=target)(PORT=10001)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.3.0 - Production
Start Date 10-MAY-2016 16:48:36
Uptime 0 days 0 hr. 0 min. 0 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/11g/network/admin/listener.ora
Listener Log File /u01/oracle/diag/tnslsnr/target/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=target)(PORT=10001)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
Services Summary...
Service "pu" has 1 instance(s).
Instance "pu", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
6、查看系统状态
[oracle@target ~]$ netstat -ano|grep 10001
tcp 0 0 192.168.6.152:26082 192.168.6.152:10001 ESTABLISHED off (0.00/0/0)
tcp 0 0 :::10001 :::* LISTEN off (0.00/0/0)
tcp 0 0 ::ffff:192.168.6.152:10001 ::ffff:192.168.6.152:26082 ESTABLISHED keepalive (7193.37/0/0)
已经开启10001端口号
7、验证登陆
[oracle@target ~]$ sqlplus / as sysdba@target:10001:pu
SQL*Plus: Release 11.2.0.3.0 Production on Tue May 10 16:50:50 2016
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, Oracle Label Security, OLAP, Data Mining,
Oracle Database Vault and Real Application Testing options
SQL>

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



MySQL is chosen for its performance, reliability, ease of use, and community support. 1.MySQL provides efficient data storage and retrieval functions, supporting multiple data types and advanced query operations. 2. Adopt client-server architecture and multiple storage engines to support transaction and query optimization. 3. Easy to use, supports a variety of operating systems and programming languages. 4. Have strong community support and provide rich resources and solutions.

MySQL is an open source relational database management system, mainly used to store and retrieve data quickly and reliably. Its working principle includes client requests, query resolution, execution of queries and return results. Examples of usage include creating tables, inserting and querying data, and advanced features such as JOIN operations. Common errors involve SQL syntax, data types, and permissions, and optimization suggestions include the use of indexes, optimized queries, and partitioning of tables.

Oracle View Encryption allows you to encrypt data in the view, thereby enhancing the security of sensitive information. The steps include: 1) creating the master encryption key (MEk); 2) creating an encrypted view, specifying the view and MEk to be encrypted; 3) authorizing users to access the encrypted view. How encrypted views work: When a user querys for an encrypted view, Oracle uses MEk to decrypt data, ensuring that only authorized users can access readable data.

There are three ways to view instance names in Oracle: use the "sqlplus" and "select instance_name from v$instance;" commands on the command line. Use the "show instance_name;" command in SQL*Plus. Check environment variables (ORACLE_SID on Linux) through the operating system's Task Manager, Oracle Enterprise Manager, or through the operating system.

Uninstall method for Oracle installation failure: Close Oracle service, delete Oracle program files and registry keys, uninstall Oracle environment variables, and restart the computer. If the uninstall fails, you can uninstall manually using the Oracle Universal Uninstall Tool.

An AWR report is a report that displays database performance and activity snapshots. The interpretation steps include: identifying the date and time of the activity snapshot. View an overview of activities and resource consumption. Analyze session activities to find session types, resource consumption, and waiting events. Find potential performance bottlenecks such as slow SQL statements, resource contention, and I/O issues. View waiting events, identify and resolve them for performance. Analyze latch and memory usage patterns to identify memory issues that are causing performance issues.

SQL statements can be created and executed based on runtime input by using Oracle's dynamic SQL. The steps include: preparing an empty string variable to store dynamically generated SQL statements. Use the EXECUTE IMMEDIATE or PREPARE statement to compile and execute dynamic SQL statements. Use bind variable to pass user input or other dynamic values to dynamic SQL. Use EXECUTE IMMEDIATE or EXECUTE to execute dynamic SQL statements.

To create a user in Oracle, follow these steps: Create a new user using the CREATE USER statement. Grant the necessary permissions using the GRANT statement. Optional: Use the RESOURCE statement to set the quota. Configure other options such as default roles and temporary tablespaces.
