Renomeando o nome da interface de rede no CentOS 7:

Então sua interface de rede se chama algo como “ens….”?
Quer o bom e velho eth0 ?

[root@centos7-1 ~]# ifconfig
ens192: flags=4163 mtu 1500
inet 10.x.x.152 netmask 255.255.252.0 broadcast 10.134.39.255
inet6 fe80::250:56ff:fe93:5f8e prefixlen 64 scopeid 0x20 ether 00:50:56:93:5f:8e txqueuelen 1000 (Ethernet)
RX packets 2084 bytes 136963 (133.7 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 176 bytes 22010 (21.4 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

Altere o arquivo /etc/default/grub, adicione no final da linha GRUB_CMDLINE_LINUX: net.ifnames=0 biosdevname=0

/etc/default/grub

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

Reconfigure o grub:
grub2-mkconfig -o /boot/grub2/grub.cfg

Renomeie o arquivo de configuração:
mv /etc/sysconfig/network-scripts/ifcfg-ens192 /etc/sysconfig/network-scripts/ifcfg-eth0

Altere o nome da interface de rede dentro do arquivo de configuração:

# cat /etc/sysconfig/network-scripts/ifcfg-eth0
HWADDR=00:11:56:93:5F:8E
TYPE=Ethernet
BOOTPROTO=none
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPADDR=10.xx.xx.152
NETMASK=255.255.252.0
GATEWAY=10.x.x.1
IPV4_FAILURE_FATAL=no
IPV6INIT=no
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
NAME=eth0
UUID=84f57a6a-9e0d-4444-a97c-e2b360345b78
ONBOOT=yes
NM_CONTROLLED=no

Desabilite o NetworkManager (veja o NM_CONTROLLED, já desativa na interface também)
service NetworkManager stop
chkconfig NetworkManager off