下载源安装文件
wget http://repo.mysql.com//mysql57-community-release-el7-8.noarch.rpm
wget https://repo.mysql.com//mysql57-community-release-el7-11.noarch.rpm
本地安装rpm包（配置MySQL安装源）
yum -y localinstall mysql57-community-release-el7-11.noarch.rpm
查看所有MySQL安装源（默认MySQL安装版本5.7）
yum repolist all | grep mysql
关闭MySQL 5.6安装源
sudo yum-config-manager --disable mysql56-community
开启MySQL 5.7安装源
sudo yum-config-manager --enable mysql57-community
没有yum-config-manager命令可以安装yum install yum-utils.noarch工具 或者编辑/etc/yum.repos.d/mysql-community.repo文件enable项为1表示开启，为0表示关闭
VI命令修改python版本为2.7
vi /usr/libexec/urlgrabber-ext-down
yum -y install yum-utils
vi /bin/yum-config-manager
安装MySQL
yum -y install mysql-devel mysql-community-server
启动MySQL
systemctl start mysqld.service
安全配置MySQL
mysql_secure_installation
设置密码
use mysql;
update user set password=password(‘密码‘) where user=‘root‘;
flush privileges;
配置
mysql配置文件为/etc/my.cnf
最后加上编码配置
[mysql] default-character-set =utf8
这里的字符编码必须和/usr/share/mysql/charsets/Index.xml中一致。
2、远程连接设置
把在所有数据库的所有表的所有权限赋值给位于所有IP地址的root用户。
mysql> grant all privileges on *.* to [email protected]‘%‘identified by ‘password‘;
如果是新用户而不是root，则要先新建用户
mysql>create user ‘username‘@‘%‘ identified by ‘password‘;
重启MYSQL
1、可以将mysqld放到/etc/init.d
用/etc/init.d/mysqld restart命令重启
(cp mysql-5.5.31/support-files/mysql.server /etc/init.d/mysqld)
2、或者用systemctl
systemctl restart mysql
或者
systemctl restart mariadb
3、service mysql restart
service mariadb restart
此时就可以进行远程连接了。