由于CentOS 6默认开启了arpcheck所以在配置网卡的时候需要关闭，否则导致网络服务启动失败
[root@Mysql ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
HWADDR=00:0C:29:4C:B9:D6
TYPE=Ethernet
UUID=c632b505-9eb7-47fd-abe9-7fe20cd899f9
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.89.33
NETMASK=255.255.255.0
GATEWAY=192.168.89.2
BROADCAST=192.168.89.255
DNS1=202.96.64.68
ARPCHECK=no