How to change network interface name from Enp0s3 to Eth0 on CentOS 7

 CentOS 7 Change Network Interface Name From Enp0s3 To Eth0

After you installed CentOS 7.x or RHEL 7.x system, you maybe notice that the default name of network interface was changed from “Eth*” to “Enp*”. How do I change network interface name to “Eth0″ in CentOS 7.0? This post will show you the ways to change network interface.

CentOS 7 Change Network Interface Name

Step1
# issue the ifconfig command to check the current network interface information, type:
# yum install net-tools

[root@localhost Desktop]$sudo ifconfig enp0s3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500 inet 192.168.42.129  netmask 255.255.255.0  broadcast 192.168.42.255 inet6 fe80::20c:29ff:fec7:25ae  prefixlen 64  scopeid 0x20<link> ether 00:0c:29:c7:25:ae  txqueuelen 1000  (Ethernet) RX packets 200948  bytes 253071365 (241.3 MiB) RX errors 0  dropped 0  overruns 0  frame 0 TX packets 56043  bytes 3420351 (3.2 MiB) TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Step2
# edit “/etc/sysconfig/grub” configuration file using “vim” command:
before:

[root@localhost Desktop]$sudo vim /etc/sysconfig/grub GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_TERMINAL_OUTPUT="console" GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/swap vconsole.font=latarcyrheb-sun16 rd.lvm.lv=centos/root crashkernel=auto  vconsole.keymap=us rhgb quiet" GRUB_DISABLE_RECOVERY="true"

then searching for “GRUB_CMDLINE_LINUX” line  and appending the following content “net.ifnames=0 biosdevname=0“, just like the below:

GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/swap vconsole.font=latarcyrheb-sun16 rd.lvm.lv=centos/root crashkernel=auto  vconsole.keymap=us rhgb quiet net.ifnames=0 biosdevname=0"

Step3
# Using “grub2-mkconfig” command to re-generate a new grub configuration file, type:

>

[root@localhost Desktop]$sudo grub2-mkconfig  -o /boot/grub2/grub.cfg Generating grub configuration file ... Found linux image: /boot/vmlinuz-3.10.0-123.el7.x86_64 Found initrd image: /boot/initramfs-3.10.0-123.el7.x86_64.img Warning: Please don't use old title `CentOS Linux, with Linux 3.10.0-123.el7.x86_64' for GRUB_DEFAULT, use `Advanced options for CentOS Linux CentOS Linux, with Linux 3.10.0-123.el7.x86_64' (for versions before 2.00) or `gnulinux-advanced-dbedd8fa-5d86-4ea0-8551-8444a48cd44f nulinux-3.10.0-123.el7.x86_64-advanced-dbedd8fa-5d86-4ea0-8551-8444a48cd44f' (for 2.00 or later) Found linux image: /boot/vmlinuz-0-rescue-3303e35a730a41e3b4e99b544acea205 Found initrd image: /boot/initramfs-0-rescue-3303e35a730a41e3b4e99b544acea205.img done

Step4
#   Rename “Enp” network file using”mv”command, type:

$sudo mv /etc/sysconfig/network-scripts/ifcfg-enp0s3  /etc/sysconfig/network-scripts/ifcfg-eth0

Step5
# Edit “/etc/sysconfig/network-scripts/ifcfg-eth0 ” configuration file and set the value of “Name” field to “eth0″.

# vim /etc/sysconfig/network-scripts/ifcfg-eth0 TYPE=Ethernet BOOTPROTO=dhcp DEFROUTE=yes IPV4_FAILURE_FATAL=no IPV6INIT=yes IPV6_AUTOCONF=yes IPV6_DEFROUTE=yes IPV6_FAILURE_FATAL=no <strong>NAME=eth0</strong> UUID=5ae10208-855b-41af-99e7-0673d3792d15 ONBOOT=yes HWADDR=00:0C:29:C7:25:AE PEERDNS=yes PEERROUTES=yes IPV6_PEERDNS=yes IPV6_PEERROUTES=yes ​

Step6
# reboot system, after rebooting system, using “ifconfig” command check network interface information again.

[root@localhost Desktop]# ifconfig eth0: flags=4163 UP,BROADCAST,RUNNING,MULTICAST  mtu 1500 inet 192.168.42.129  netmask 255.255.255.0  broadcast 192.168.42.255 inet6 fe80::20c:29ff:fec7:25ae  prefixlen 64  scopeid 0x20 ether 00:0c:29:c7:25:ae  txqueuelen 1000  (Ethernet) RX packets 49  bytes 5285 (5.1 KiB) RX errors 0  dropped 0  overruns 0  frame 0 TX packets 76  bytes 8540 (8.3 KiB) TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

done….