linux mysql 查看默認端口號和修改端口號
- 如何查看mysql 默認端口號和修改端口號 2015-03-19 17:42:18
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- 1. 登陸mysql
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- [root@test /]# mysql -u root -p
- Enter password:
-
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- 2. 使用命令show global variables like 'port';查看端口號
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- mysql> show global variables like 'port';
- +---------------+-------+
- | Variable_name | Value |
- +---------------+-------+
- | port | 3306 |
- +---------------+-------+
- 1 row in set (0.00 sec)
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- 3. 修改端口,編輯/etc/my.cnf文件,早期版本有多是my.conf文件名,增長端口參數,而且設定端口,注意該端口未被使用,保存退出。
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- [root@test etc]# vi my.cnf
- [mysqld]
- port=3506
- datadir=/var/lib/mysql
- socket=/var/lib/mysql/mysql.sock
- user=mysql
- # Disabling symbolic-links is recommended to prevent assorted security risks
- symbolic-links=0
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- [mysqld_safe]
- log-error=/var/log/mysqld.log
- pid-file=/var/run/mysqld/mysqld.pid
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- "my.cnf" 11L, 261C written
- [root@test etc]#
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- 4. 從新啓動mysql
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- [root@test ~]# /etc/init.d/mysqld restart
- Stopping mysqld: [ OK ]
- Starting mysqld: [ OK ]
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- 5.再次登陸後檢查端口已修改成’3506’.
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- [root@test etc]# mysql -u root -p
- Enter password:
- Welcome to the MySQL monitor. Commands end with ; or \g.
- Your MySQL connection id is 2
- Server version: 5.1.66 Source distribution
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- Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
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- Oracle is a registered trademark of Oracle Corporation and/or its
- affiliates. Other names may be trademarks of their respective
- owners.
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- Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
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- mysql> show global variables like 'port';
- +---------------+-------+
- | Variable_name | Value |
- +---------------+-------+
- | port | 3506 |
- +---------------+-------+
- 1 row in set (0.00 sec)
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- mysql>
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- 總結:注意修改的端口不要被佔用,並且要有規劃,不要輕意的老是調整數據庫端口。還有就是安全保障,記得與負責網絡的人提早通知,以避免端口沒法正常使用。
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