mysql破解root口令

破解root口令
[root@centos8 ~]#vim /etc/my.cnf
[mysqld]
skip-grant-tables  #取消密码验证
skip-networking  # mysql8.0不需要 关闭Mysql的远程连接(建议加上)

[root@centos8 ~]#systemctl restart mysqld|mariadb

[root@centos8 ~]#mysql

#方法1
#mariadb 旧版和MySQL5.6版之前
MariaDB [(none)]> update mysql.user set password=password('ubuntu') where  user='root';

#mariadb 新版
MariaDB [(none)]> update mysql.user set authentication_string=password('ubuntu')
where user='root';

#方法2
MariaDB [(none)]> flush privileges;
MariaDB [(none)]> alter user root@'localhost' identified by 'ubuntu';