MySQL忘记密码重置方法

MySQL忘记密码重置方法

1、此次测试系统环境为centos7,MySQL版本为5.7.33

2、此方法可以作为初始安装MySQL后临时密码无法登录系统或者忘记密码情况的解决方案

3、停止服务并查看服务状态
#systemctl stop mysqld
#systemctl status mysqld
在这里插入图片描述

4、打开MySQL配置文件,在[mysqld]节点下加skip-grant-tables
#vi /etc/my.cnf

# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html

[mysqld]
#
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
#
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
#
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M

skip-grant-tables

datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock

# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0

log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid                                  

5、启动服务(查看服务状态)并登录MySQL
#systemctl start mysqld
#systemctl status mysqld
MySQL忘记密码重置方法_第1张图片
登录MySQL,不需要密码参数
#mysql -uroot
MySQL忘记密码重置方法_第2张图片

6、修改密码,使用password(‘需要修改的密码’)进行更改密码
update user set authentication_string=password(‘root’) where user=‘root’;
MySQL忘记密码重置方法_第3张图片

7、停服务,配置文件中注释掉skip-grant-tables,启服务。使用新的密码登录MySQL。

小尾巴~~
只要有积累,就会有进步

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