阿里云安装mysql5.7

1.配置YUM源

下载mysql源安装包:

wget https://repo.mysql.com//mysql57-community-release-el7-11.noarch

安装mysql源,安装过程当中遇到Is this ok [y/d/N]的直接输入y便可:

yum localinstall mysql57-community-release-el7-11.noarch.rpm

检查mysql源是否安装成功:

yum repolist enabled | grep "mysql.*-community.*"

2.安装MySQL,安装过程当中遇到Is this ok [y/d/N]的直接输入y便可

yum install mysql-community-server

Note:可经过修改/etc/yum.repos.d/mysql-community.repo源中的enabled【1表示选择】的值来选择安装的MySQL版本

3.启动MySQL服务

systemctl start mysqld

查看MySQL的启动状态

systemctl status mysqld

4.开机启动

systemctl enable mysqld

systemctl daemon-reload

5.修改root本地登陆密码

获取MySQL默认密码:

grep 'temporary password' /var/log/mysqld.log

登录MySQL:

mysql -uroot -p

修改默认密码:

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

或者

set password for 'root'@'localhost'=password('Password');

Note:MySQL5.7默认安装了密码安全检查插件(validate_password),默认密码检查策略要求密码必须包含:大小写字母、数字和特殊符号,而且长度不能少于8位。?

6.添加远程登陆用户

默认只容许root账户在本地登陆,若是要在其它机器上链接mysql,必须修改root容许远程链接,或者添加一个容许远程链接的账户:

GRANT ALL PRIVILEGES ON *.* TO 'account'@'%' IDENTIFIED BY 'pwd' WITH GRANT OPTION;

7.配置默认编码为utf8

show variables like '%character%';

修改/etc/my.cnf配置文件:

[mysqld]

character_set_server=utf8

init_connect='SET NAMES utf8'

从新启动mysql服务便可完成修改

8.默认配置文件路径

配置文件:/etc/my.cnf

日志文件:/var/log//var/log/mysqld.log

服务启动脚本:/usr/lib/systemd/system/mysqld.service

socket文件:/var/run/mysqld/mysqld.pid