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@@ -0,0 +1,45 @@
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+1.环境
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+ ubuntu18.04 华为云远程服务器
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+2.停止MySQL服务
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+ sudo systemctl stop mysql
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+3.卸载MySql
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+ sudo apt-get remove --purge mysql-server mysql-client mysql-common mysql-server-core-* mysql-client-core-*
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+4.删除相关文件和目录
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+ sudo rm -rf /etc/mysql /var/lib/mysql /var/log/mysql
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+5.清理未使用的包
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+ sudo apt-get autoremove
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+ sudo apt-get autoclean
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+6.更新包列表
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+ sudo apt-get update
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+7.安装
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+ sudo apt-get install mysql-server
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+8.安全配置（可选，但推荐）
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+ sudo mysql_secure_installation
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+9.启动MySQL服务
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+ sudo systemctl start mysql
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+10.检查状态
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+ sudo systemctl status mysql
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+
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+11.配置MySQL以允许远程连接（非root 11-16步)
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+ sudo nano /etc/mysql/mysql.conf.d/mysqld.cnf
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+ 找到:bind-address = 127.0.0.1
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+ 更改:bind-address = 0.0.0.0
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+ 这将允许来自所有IP地址的连接。
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+12.重启服务器
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+ sudo systemctl restart mysql
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+13.登录
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+ mysql -u root -p 密码：1
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+14.在MySQL中，您需要为允许远程访问的用户创建或修改用户。进入MySQL命令行
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+ CREATE USER 'your_user'@'%' IDENTIFIED BY 'your_password';
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+ GRANT ALL PRIVILEGES ON *.* TO 'your_user'@'%' WITH GRANT OPTION;
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+ FLUSH PRIVILEGES;
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+15.配置防火墙
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+ sudo ufw allow 3306/tcp
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+16.mysql -u your_user -p -h your_server_ip
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+
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+17.配置MySQL以允许远程连接（root 11-16步)
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+ CREATE USER 'root'@'%' IDENTIFIED BY 'your_password';
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+ GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' WITH GRANT OPTION;
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+ FLUSH PRIVILEGES;
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+
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+
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