mysql查看当前启动的端口号

本文详细介绍了如何在MySQL中查看并修改默认端口号,包括登录MySQL、使用命令查看端口号、编辑配置文件my.cnf来修改端口、重启MySQL服务以及验证端口修改是否成功的过程。

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mysql 查看并修改默认端口号

  1. 登录mysql
    [root@test /]# mysql -u root -p
    Enter password:
    Welcome to the MySQL monitor. Commands end with ; or \g.
    Your MySQL connection id is 92
    Server version: 5.1.66 Source distribution

Copyright © 2000, 2012, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the current input statement.

mysql>

  1. 使用命令show global variables like ‘port’;查看端口号

mysql> show global variables like ‘port’;
±--------------±------+
| Variable_name | Value |
±--------------±------+
| port | 3306 |
±--------------±------+
1 row in set (0.00 sec)

  1. 修改端口,编辑/etc/my.cnf文件,早期版本有可能是my.conf文件名,增加端口参数,并且设定端口,注意该端口未被使用,保存退出。

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

[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

“my.cnf” 11L, 261C written
[root@test etc]#

  1. 重新启动mysql

[root@test ~]# /etc/init.d/mysqld restart
Stopping mysqld: [ OK ]
Starting mysqld: [ OK ]

5.再次登录后检查端口已修改为’3506’.

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

Copyright © 2000, 2012, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the current input statement.

mysql> show global variables like ‘port’;
±--------------±------+
| Variable_name | Value |
±--------------±------+
| port | 3506 |
±--------------±------+
1 row in set (0.00 sec)

mysql>

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