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1.下载mysql源安装包
wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm
2.安装mysql源
yum localinstall mysql57-community-release-el7-8.noarch.rpm
3.检查mysql源是否安装成功
yum repolist enabled | grep "mysql.*-community.*"
4.安装MySQL
yum install mysql-community-server
5.启动MySQL服务
systemctl start mysqld
6.查看MySQL的启动状态
systemctl status mysqld
7.开机启动
systemctl enable mysqld
systemctl daemon-reload
8.修改root本地登录密码
在/var/log/mysqld.log文件中给root生成了一个默认密码
//显示临时密码
grep 'temporary password' /var/log/mysqld.log
mysql -uroot -p
set password for 'root'@'localhost'=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,并且长度不能少于8位。
否则会提示ERROR 1819 (HY000): Your password does not satisfy the current policy requirements
通过msyql环境变量可以查看密码策略的相关信息:
show variables like '%password%';
修改密码策略,在/etc/my.cnf文件添加validate_password_policy配置,指定密码策略
# 选择0(LOW),1(MEDIUM),2(STRONG)其中一种,选择2需要提供密码字典文件
validate_password_policy=0
#如果不需要密码策略,添加my.cnf文件中添加如下配置禁用即可:
validate_password = off
重新启动mysql服务使配置生效:
systemctl restart mysqld
9.添加远程登录用户
默认只允许root帐户在本地登录,如果要在其它机器上连接mysql,为了安全起见,添加一个新的帐户:
GRANT ALL PRIVILEGES ON *.* TO 'yangxin'@'%' IDENTIFIED BY 'Yangxin0917!' WITH GRANT OPTION;
10.配置默认编码为utf8
修改/etc/my.cnf配置文件,在[mysqld]下添加编码配置:
[mysqld]
character_set_server=utf8
init_connect='SET NAMES utf8'
重新启动mysql服务
other:
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