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安装MySQL
本次安装使用的是绿色硬盘版本,无需额外安装依赖环境,比较简单
cd /opt tar -xf mysql安装包 mv 解压出的目录 /usr/local/mysql #创建程序用户 useradd -M -s /sbin/nologin mysql #mysql的主配置文件设定所属用户和组 chown -R mysql.mysql /usr/local/mysql/ chown mysql.mysql /etc/my.cnf
修改配置文件:
vim /etc/my.cnf [client] port = 3306 #客户端访问的端口 socket=/usr/local/mysql/mysql.sock #指定MySQL的通信套接字文件 [mysqld] user = mysql basedir=/usr/local/mysql #MySQL的安装目录 datadir=/usr/local/mysql/data #MySQL数据保存的目录 port = 3306 #服务端的端口 character-set-server=utf8 #字符集的编码 pid-file = /usr/local/mysql/mysqld.pid #pid文件位置 socket=/usr/local/mysql/mysql.sock bind-address = 0.0.0.0 #表示任意地址都可以访问数据库 skip-name-resolve max_connections=2048 default-storage-engine=INNODB #MySQL默认的存储引擎 max_allowed_packet=16M server-id = 1 sql_mode = STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION #MySQL支持的数据类型和相关的模块
设置环境变量,声明/宣告MySQL命令便于系统识别:
echo "PATH=$PATH:/usr/local/mysql/bin" >> /etc/profile source /etc/profile
初始化数据库:
cd /usr/local/mysql/bin/ ./mysqld \ --initialize-insecure \ --user=mysql \ --basedir=/usr/local/mysql \ --datadir=/usr/local/mysql/data
设置系统识别,进行操作:
cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld chmod +x /etc/init.d/mysqld systemctl daemon-reload systemctl restart mysqld
初始化数据库密码:
mysqladmin -u root -p password "123456" #在交互界面直接回车,不要输入!
进入数据库:
mysql -u root -p123456 #进入数据库交互界面 show databases; #创建用户并设置密码 create user 'root'@"%" identified by '123456'; #赋予远程连接的权限 grant all privileges on *.* to 'root'@'%'; #刷新生效 flush privileges; #修改加密方式,可以进行远程连接 alter user 'root'@'%' identified with mysql_native_password by "123456"; exit;
数据库安装完成。