Centos7.2下如何使用YUM来快速安装MySQL5.7的方法介绍

卸载系统自带mariadb数据库

# rpm -qa| grep mariadb
# rpm -e --nodeps mariadb-libs-5.5.44-2.el7.centos.x86_

下载YUM库

# rpm wgethttp://dev.MySQL.com/get/mysql57-community-release-el7-7.noarch.rpm

安装YUM库

# rpm yum localinstall -ymysql57-community-release-el7-7.noarch.rpm

安装数据库

# rpm yum install -y mysql-community-server

启动MySQL服务

# rpm systemctl start mysqld.service

由于mysql5.7会自动生成密码，密码文件存储在/var/log/mysqld.log 中搜索password关键字即可找到密码，登陆mysql

# mysql -uroot -p

重置root用户密码

mysql > alter user 'root'@'localhost' identified by '密码';

重新以root用户和刚设置的密码进行登录即可。并授权用户root使用密码从任何主机连接到mysql服务器

mysql > grant all privileges on *.* to 'root'@'%' identifiedby '密码' with grant option;
mysql > flush privileges;

或允许用户root只能从ip为192.168.1.1的主机连接到mysql服务器

mysql > grant all privileges on *.* to 'root'@'192.168.1.1' identified by '密码' with grant option;
mysql > flush privileges;

开启3306端口

# firewall-cmd --add-port=3306/tcp