Voici le résultat :
[root@DELL ~]# ls -l /etc/sysconfig/networking/devices/
total 4
-rw-r--r--. 3 root root 304 2 juin 12:26 ifcfg-eth0
[root@DELL ~]# cat /etc/sysconfig/networking/devices/ifcfg-eth0
# Broadcom Corporation NetLink BCM5784M Gigabit Ethernet PCIe
DEVICE=eth0
HWADDR=00:21:70:81:4C:5B
ONBOOT=yes
BOOTPROTO=dhcp
TYPE=Ethernet
NM_CONTROLLED=yes
USERCTL=no
IPV6INIT=no
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=yes
NAME="System eth0"
UUID=5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03
[root@DELL ~]# ls -l /etc/sysconfig/network-scripts/ifcfg-*
-rw-r--r--. 3 root root 304 2 juin 12:26 /etc/sysconfig/network-scripts/ifcfg-eth0
-rw-r--r--. 1 root root 254 5 mai 18:20 /etc/sysconfig/network-scripts/ifcfg-lo
[root@DELL ~]# cat /etc/sysconfig/network-scripts/ifcfg-*
# Broadcom Corporation NetLink BCM5784M Gigabit Ethernet PCIe
DEVICE=eth0
HWADDR=00:21:70:81:4C:5B
ONBOOT=yes
BOOTPROTO=dhcp
TYPE=Ethernet
NM_CONTROLLED=yes
USERCTL=no
IPV6INIT=no
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=yes
NAME="System eth0"
UUID=5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03
DEVICE=lo
IPADDR=127.0.0.1
NETMASK=255.0.0.0
NETWORK=127.0.0.0
# If you're having problems with gated making 127.0.0.0/8 a martian,
# you can change this to something else (255.255.255.255, for example)
BROADCAST=127.255.255.255
ONBOOT=yes
NAME=loopback
[root@DELL ~]#