在使用vmare workstation或者vsphere的环境下安装centos7的时候，会把网卡名称默认调整为ens167，满足一致性命名，而非eth0等。有时候需要修改网卡名称，满足一般配置运维寻求

CentOS7修改网卡为eth0

.编辑网卡信息# cd /etc/sysconfig/network-scripts/  #进入网卡目录# mv ifcfg-eno16777728 ifcfg-eth0  #重命名网卡名称# cat ifcfg-eth0  #编辑网卡信息TYPE=EthernetBOOTPROTO=staticDEFROUTE=yesPEERDNS=yesPEERROUTES=yesIPV4_FAILURE_FATAL=noNAME=eth0  #name修改为eth0ONBOOT=yesIPADDR=192.168.56.12NETMASK=255.255.255.0GATEWAY=192.168.56.2DNS1=192.168.56.2

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=5GRUB_DEFAULT=savedGRUB_DISABLE_SUBMENU=trueGRUB_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_64Foundinitrd image: /boot/initramfs-3.10.0-229.el7.x86_64.imgFoundlinux image: /boot/vmlinuz-0-rescue-1100f7e6c97d4afaad2e396403ba7f61Foundinitrd image: /boot/initramfs-0-rescue-1100f7e6c97d4afaad2e396403ba7f61.imgDone

验证是否生效

[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