vi /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0
HWADDR=00:0C:29:6C:BB:E6
NM_CONTROLLED="yes"
ONBOOT=yes
PEERDNS=yes
BOOTPROTO=static
IPADDR=192.168.0.8
NETMASK=255.255.255.0
GATEWAY=192.168.0.1
DNS1=10.168.0.105
DNS2=20.16.0.20

service network restart

vi /etc/resolv.conf
nameserver xxx.xxx.xxx.xxx

yum install wget -y && mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
yum clean all
yum makecache
yum update

rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm

rpm -Uvh http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm
yum repolist enabled | grep "mysql.*-community.*"
yum -y install mysql-community-server