centos7rpm安装mysql5.6

rpm -qa | grep -i mariadb 检查自带的mysql

rpm -e --nodeps mariadb-libs.. 删除自带mysql

rpm -qa | grep -i mysql 查看是否已经安装mysql

tar -xvf xxx.tar解压mysql压缩文件

rpm -ivh xxx-server.rpm安装

rpm -ivh xxx-devel.rpm

rpm -ivh xxx-client.rpm

cat /root/.mysql_secret查询mysql原始密码

systemctl start mysql.service启动mysql

进入mysq，set password for root@localhost = password('新密码');

或者不用进入mysql 使用mysqladmin -uroot -p旧密码 password 新密码

firewall-cmd --query-port = 3306/tcp查看是否开启3306端口（systemctl enable firewalld.service启用防火墙）

firewall-cmd --add-port = 3306/tcp --permanent （永久开启3306端口）

firewall-cmd --reload 重启生效

开放权限

grant all privileges on *.* to 'root'@'%' identified by 'xxx' with grant option;
 flush privileges;