sudo apt update && sudo apt upgrade -y wget https://dev.mysql.com/get/mysql-apt-config_0.8.34-1_all.deb sudo dpkg -i mysql-apt-config_0.8.34-1_all.deb sudo apt update (安装时选择MySQL版本,如8.0)sudo apt install mysql-server (安装过程中可设置root密码,或后续通过mysql_secure_installation配置)sudo mysql_secure_installation sudo systemctl start mysql sudo systemctl enable mysql # 开机自启 sudo nano /etc/mysql/mysql.conf.d/mysqld.cnf bind-address改为0.0.0.0port参数sudo systemctl restart mysql -- 登录MySQL后执行 CREATE USER 'remote_user'@'%' IDENTIFIED BY '强密码'; GRANT ALL PRIVILEGES ON *.* TO 'remote_user'@'%' WITH GRANT OPTION; FLUSH PRIVILEGES; mysql -u root -p sudo systemctl status mysql sudo ufw allow 3306/tcp # 允许MySQL端口 validate_password插件强化密码安全。mysqldump -u root -p --all-databases > backup.sql。参考来源: