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?
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
该解决方案属于以前版本的MySQL。 通过使用套接字身份验证登录MySQL,您可以做到这一点。
sudo mysql -u root
然后可以运行以下命令。
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password';
详情请点击这里。
其他回答
正如mysql文档中password()函数所说:
此函数在MySQL 8.0.11中被移除。
这将使mysql v8.0.11及更新版本的所有现有答案都失效。
根据mysql文档,重置root密码的新通用方法如下:
The preceding sections provide password-resetting instructions specifically for Windows and Unix and Unix-like systems. Alternatively, on any platform, you can reset the password using the mysql client (but this approach is less secure): Stop the MySQL server if necessary, then restart it with the --skip-grant-tables option. This enables anyone to connect without a password and with all privileges, and disables account-management statements such as ALTER USER and SET PASSWORD. Because this is insecure, if the server is started with the --skip-grant-tables option, it enables --skip-networking automatically to prevent remote connections. Connect to the MySQL server using the mysql client; no password is necessary because the server was started with --skip-grant-tables: shell> mysql In the mysql client, tell the server to reload the grant tables so that account-management statements work: mysql> FLUSH PRIVILEGES; Then change the 'root'@'localhost' account password. Replace the password with the password that you want to use. To change the password for a root account with a different host name part, modify the instructions to use that host name. mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass'; You should now be able to connect to the MySQL server as root using the new password. Stop the server and restart it normally (without the --skip-grant-tables and --skip-networking options).
对于Ubuntu 18.04和mysql版本14.14,Distrib 5.7.22,请按照以下步骤重置mysql密码。
步骤1
sudo systemctl stop mysql
步骤2
sudo systemctl edit mysql
这个命令将在nano编辑器中打开一个新文件,您将使用该文件编辑MySQL的服务覆盖。这些更改MySQL的默认服务参数。该文件将为空,因此添加以下内容:
[Service]
ExecStart=
ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/run/mysqld/mysqld.pid --skip-grant-tables --skip-networking
步骤3
sudo systemctl daemon-reload
sudo systemctl start mysql
步骤4
sudo mysql -u root
步骤5
FLUSH PRIVILEGES;
步骤6
UPDATE mysql.user SET authentication_string = PASSWORD('new_password') WHEREuser = 'root';
步骤7
UPDATE mysql.user SET plugin ='mysql_native_password' WHERE user = 'root';
步骤8
sudo systemctl revert mysql
最后
sudo systemctl restart mysql
现在享受
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)
我遇到ubuntu 18.04和mysql 5.7的问题,这是解决方案
执行命令前请尝试重新启动mysql-server
sudo service mysql restart
Mysql-server >= 5.7
sudo mysql -uroot -p
USE mysql;
UPDATE user SET authentication_string=PASSWORD('YOUR_PASSWORD') WHERE User='root';
UPDATE user SET plugin="mysql_native_password";
FLUSH PRIVILEGES;
quit;
Mysql-server < 5.7
sudo mysql -uroot -p
USE mysql;
UPDATE user SET password=PASSWORD('YOUR_PASSWORD') WHERE User='root';
UPDATE user SET plugin="mysql_native_password";
FLUSH PRIVILEGES;
quit;
对我有用的(Ubuntu 16.04, mysql 5.7):
停止MySQL
sudo service mysql stop
制作MySQL服务目录。
sudo mkdir /var/run/mysqld
赋予MySQL用户写入服务目录的权限。
sudo chown mysql: /var/run/mysqld
手动启动MySQL,不需要权限检查或联网。
sudo mysqld_safe --skip-grant-tables --skip-networking &
在另一个控制台,无需密码登录。
mysql -uroot mysql
然后:
UPDATE mysql.user SET authentication_string=PASSWORD('YOURNEWPASSWORD'), plugin='mysql_native_password' WHERE User='root' AND Host='localhost';
EXIT;
关闭MySQL。
sudo mysqladmin -S /var/run/mysqld/mysqld.sock shutdown
正常启动MySQL服务。
sudo service mysql start