how to Change default Interface name (enp0s3) to old “eth0”

Q :  how to Change default Interface name (enp0s3) to old “eth0”

Q : how to rename eth0 like interface name on centos 7 / ubuntu 16

Change default
network name like enp0s3 or enp1s0 to old like eth0 / eth1 or wlan0
in Ubuntu 16 and CentOS 7

# ifconfig output

Step 1 :   open
grub.cfg file

Ubutnu 16 :

vi
/boot/grub/grub.cfg

Centos 7 :

vi
/boot/grub2/grub.cfg

Step 2 :   

go to menu
entry menuentry, find vmlinux line and add “net.ifnames=0 after the
word “quiet”

Ubuntu 16 Output:

CentOS 7 Output :

Step 3: 

Reboot your
system and change interface name ( enp0s3 ) to ( eth0) in network
file

Ubuntu 16

vi
/etc/network/interfaces

reboot

CentOS 7 : 

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

vi
/etc/sysconfig/network-scripts/ifcfg-eth0

Restart Network
Service

systemctl restart
network