1.编辑网卡信息

[root@linux~]# cd /etc/sysconfig/network-scripts/  #进入网卡目录

[root@linux~network-scripts]# mv ifcfg-eno16777728 ifcfg-eth0  #重命名网卡名称

[root@linux network-scripts]# cat ifcfg-eth0#编辑网卡信息

TYPE=Ethernet

BOOTPROTO=static

DEFROUTE=yes

PEERDNS=yes

PEERROUTES=yes

IPV4_FAILURE_FATAL=no

NAME=eth0#name修改为eth0

ONBOOT=yes

IPADDR=10.70.18.21                  #定义ip地址

NETMASK=255.255.255.0                #定义子网掩码

GATEWAY=10.70.18.1                  #网关定义

DNS1=114.114.114.114                 #DNS定义

2.修改grub

[root@linux-node2 ~]# cat /etc/sysconfig/grub  #编辑内核信息,添加红色字段的

GRUB_TIMEOUT=5

GRUB_DEFAULT=saved

GRUB_DISABLE_SUBMENU=true

GRUB_TERMINAL_OUTPUT="console"

GRUB_CMDLINE_LINUX="crashkernel=auto rhgbnet.ifnames=0 biosdevname=0quiet"

GRUB_DISABLE_RECOVERY="true"

[root@linux-node2 ~]# grub2-mkconfig -o /boot/grub2/grub.cfg #生成启动菜单

Generating

grub configuration file …

Found

linux image: /boot/vmlinuz-3.10.0-229.el7.x86_64

Found

initrd image: /boot/initramfs-3.10.0-229.el7.x86_64.img

Found

linux image: /boot/vmlinuz-0-rescue-1100f7e6c97d4afaad2e396403ba7f61

Found

initrd image: /boot/initramfs-0-rescue-1100f7e6c97d4afaad2e396403ba7f61.img

Done

3.验证是否修改成功

[root@linux-node2 ~]# reboot  #必须重启系统生效

[root@linux-node2 ~]# yum install net-tools  #默认centos7不支持ifconfig需要看装net-tools包

[root@linux-node2 ~]# ifconfig eth0#在次查看网卡信息

eth0:

flags=4163  mtu 1500

inet 192.168.56.12  netmask 255.255.255.0  broadcast 192.168.56.255

inet6 fe80::20c:29ff:fe5c:7bb1  prefixlen 64

scopeid 0x20

ether 00:0c:29:5c:7b:b1  txqueuelen 1000  (Ethernet)

RX packets 152  bytes 14503 (14.1 KiB)

RX errors 0  dropped 0

overruns 0  frame 0

TX packets 98  bytes 14402 (14.0 KiB)

TX errors 0  dropped 0 overruns 0  carrier 0

collisions 0

原创文章，作者：wanghui，如若转载，请注明出处：http://www.178linux.com/54231