解决MySQL登录ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)问题
2018-02-01 12:28
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今天在阿里云服务器ECS上CentOS安装了mysql,由于mysql刚刚安装完的时候,mysql的root用户的密码默认是空的,所以我使用命令mysql -uroot或mysql登录mysql,但是出现了如下错误:
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
解决方案:
1.停止mysql数据库:systemctl stop mysqld
2.用以下命令启动MySQL,以不检查权限的方式启动:
mysqld --skip-grant-tables &
此时又报了一个错误:2018-02-01T02:52:55.093724Z 0 [ERROR] Fatal error: Please read "Security" section of the manual to find out how to run mysqld as root!
执行命令:mysqld --user=root --skip-grant-tables &
3.登录mysql:mysql -uroot或mysql
4.更新root密码
mysql5.7以下版本:UPDATE mysql.user SET Password=PASSWORD('123456') where USER='root';
mysql5.7版本:UPDATE mysql.user SET authentication_string=PASSWORD('123456') where USER='root';
5.刷新权限:flush privileges;
6.退出mysql:exit或quit
7.使用root用户重新登录mysql
mysql -uroot -p
Enter password:<输入新设的密码123456>
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
解决方案:
1.停止mysql数据库:systemctl stop mysqld
2.用以下命令启动MySQL,以不检查权限的方式启动:
mysqld --skip-grant-tables &
此时又报了一个错误:2018-02-01T02:52:55.093724Z 0 [ERROR] Fatal error: Please read "Security" section of the manual to find out how to run mysqld as root!
执行命令:mysqld --user=root --skip-grant-tables &
3.登录mysql:mysql -uroot或mysql
4.更新root密码
mysql5.7以下版本:UPDATE mysql.user SET Password=PASSWORD('123456') where USER='root';
mysql5.7版本:UPDATE mysql.user SET authentication_string=PASSWORD('123456') where USER='root';
5.刷新权限:flush privileges;
6.退出mysql:exit或quit
7.使用root用户重新登录mysql
mysql -uroot -p
Enter password:<输入新设的密码123456>
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