CentOS7修改网卡为eth0

CentOS7修改网卡为eth0

1.编辑网卡信息

[root@linux-node2~]# cd /etc/sysconfig/network-scripts/ #进入网卡目录

[root@linux-node2network-scripts]# mv ifcfg-eno16777728 ifcfg-eth0 #重命名网卡名称

[root@linux-node2network-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=192.168.56.12

NETMASK=255.255.255.0

GATEWAY=192.168.56.2

DNS1=192.168.56.2

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=autorhgb net.ifnames=0 biosdevname=0 quiet"

GRUB_DISABLE_RECOVERY="true"

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

Generatinggrub configuration file ...

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

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

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

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

Done

也可以在开机启动加载安装系统界面设置。

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<UP,BROADCAST,RUNNING,MULTICAST> 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<link>

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