vi /etc/sysconfig/network-scripts/ifcfg-eth0DEVICE="eth0" BOOTPROTO="static" IPADDR=192.168.2.6 NETMASK=255.255.255.0 GATEWAY=192.168.2.4 HWADDR="00:0C:29:47:9F:F3" IPV6INIT="yes" NM_CONTROLLED="yes" #配置开机启动 ONBOOT="yes" TYPE="Ethernet" UUID="68cc87ca-a2a0-4d82-92dc-b7c92b4b5e1a"重启网卡：service network restart
可能会出现的错误：Shutting down interface eth0: Error: Device 'eth0' (/org/freedesktop/NetworkManager/Devices/0) disconnecting failed: This device is not active [FAILED] Shutting down loopback interface: [ OK ] Bringing up loopback interface: [ OK ] Bringing up interface eth0: Error: Connection activation failed: Device not managed by NetworkManager or unavailable [FAILED]

analysis：设备未启动issue:启动设备# ifdown eth0# ifup eth0(这里不用ifconfig eth0 up，没有ifup eth0高级，可以报错误内容)如果继续报下面的错误：

Error: Connection activation failed: Device not managed by NetworkManager or unavailable analysis：与图形化管理ip地址工具冲突，关闭图形化管理服务 issue：# service NetworkManager stop

最后即得 service network restart 重启网卡哦修改dns  vi /etc/resolv.conf（此次修改未成功，不知道为什么；)只好修改网卡ifcfg-eth0加入

DNS1="202.102.152.3" DNS2="8.8.8.8" [</code] <pre>然后重启网卡生效 配置网卡开机启动： vi /etc/sysconfig/network-scripts/ifcfg-eth0 设置ONBOOT="yes" 如果还不行，就继续下面的操作 vi /etc/rc.d/rc.local 加入一下代码 </pre> [code] ifup eth0