如何修改ubuntu服务器的MySQL root密码和用户名?我需要停止mysql服务之前,设置任何更改?

我有一个phpmyadmin设置以及,phpmyadmin会自动更新?


当前回答

如果部署在xampp上,您可以通过提供的phpadmin gui轻松更改mysql密码。

phpMyAdmin -> User Accounts -> Edit Privileges (Select the intended user) -> Change Password (Tab)

其他回答

如果你知道“root”用户密码,请使用该凭证登录mysql。然后执行以下查询以更新密码。

ALTER USER 'root'@'localhost' IDENTIFIED BY 'new_passowrd';

当你在你想要更改密码的系统上使用MySQL的PASSWORD()时,它可能会导致密码在MySQL日志中以cleartext [source]显示。对我来说,让它们和备份等像密码一样安全听起来像是噩梦,所以我喜欢这样做:

On your local machine, run this with your password: mysql -u someuser -p < <(echo "SELECT PASSWORD('mypass');") Note the space in front to prevent it from turning up in the bash history (for other distros than Ubuntu, this might work differently – source). On your server machine, execute the following command to change its MySQL root password (replace myhash with your password's hash as printed by the first command): mysql -u root -p < <(echo "SET PASSWORD FOR root@localhost = 'myhash';") Optionally, let's be a bit paranoid: On your local machine, clear your terminal screen with clear and purge your virtual terminal scrollback, to hide the cleartext password appearing in the command above.

1.打开nano / vim,创建一个包含以下内容的文件,并将文件保存为~/mysql-pwd

ALTER USER 'root'@'localhost' IDENTIFIED BY 'NEWPASSWORD';

停止mysql sudo systemctl停止mysql 执行sudo mysqld -init-file=~/mysql-pwd命令 重启mysql sudo systemctl start mysql 现在登录mysql -u root -p。password将是你的NEWPASSWORD

你不需要这些。只需登录:

Mysql -u root -p

然后按照mysql>提示修改当前用户的密码:

mysql> set password=password('the_new_password');
mysql> flush privileges;

如果你想修改MySQL root密码,在终端输入:

Sudo dpkg-reconfigure mysql-server-5.5

MySQL守护进程将被停止,并提示您输入新密码。