centos7下忘記mysql5.7密碼
阿新 • • 發佈:2018-06-22
most oca oot -c per 註意 val mysql配置 innodb
才裝完的mysql,轉眼密碼就忘記了,找了一圈的修改密碼方法,做下記錄!
- 編輯mysql配置文件。
[root@localhost ~]# vi /etc/my.cnf
- 在
[mysqld]
配置節下新增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
- 保存配置文件後,重啟mysql服務。
[root@localhost ~]# systemctl restart mysqld.service
- 使用mysql命令登錄mysql數據庫。
[root@localhost ~]# mysql
使用下面語句修改root密碼,註意和之前版本的mysql語句不太一樣。
mysql>update mysql.user set authentication_string=password(‘新密碼‘) where user=‘root‘ ; mysql>flush privileges ; mysql>quit
- 編輯mysql配置文件,將之前添加的
skip-grant-tables
重啟mysql服務。
[root@localhost ~]# systemctl restart mysqld.service
centos7下忘記mysql5.7密碼