centos7下忘记mysql5.7密码

才装完的mysql,转眼密码就忘记了，找了一圈的修改密码方法，做下记录！

编辑mysql配置文件。

[root@localhost ~]# vi /etc/my.cnf

在[mysqld]配置节下新增 skip-grant-tables。

# 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

datadir=/var/lib/mysql

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

skip-grant-tables

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

"/etc/my.cnf" 29L, 979C written

保存配置文件后，重启mysql服务。

[root@localhost ~]# systemctl restart mysqld.service

使用mysql命令登录mysql数据库。

[root@localhost ~]# mysql

使用下面语句修改root密码，注意和之前版本的mysql语句不太一样。

mysql>update mysql.user set authentication_string=password('新密码') where user='root' ;

mysql>flush privileges ;

mysql>quit

编辑mysql配置文件，将之前添加的 skip-grant-tables去掉。
重启mysql服务。

[root@localhost ~]# systemctl restart mysqld.service

巴特西

centos7下忘记mysql5.7密码

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