Linux yum安装MySQL5.7，及远程连接mysql(亲测有效！)

# 安装MySQL的yum源，下面是RHEL6系列的下载地址
rpm -Uvh https://dev.mysql.com/get/mysql-community-release-el6-5.noarch.rpm
# 安装yum-config-manager
yum install yum-utils -y
# 禁用MySQL5.6的源
yum-config-manager --disable mysql56-community
# 启用MySQL5.7的源
yum-config-manager --enable mysql57-community-dmr
# 用下面的命令查看是否配置正确
yum repolist enabled | grep mysql# 安装MySQL的yu