Loopback interface doen't appear


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# 1  
Loopback interface doen't appear

Hi all, i have a problem with (Network in Linux) .. my issue with a HW appliance has openfiler 2.3 and is used for File Sharing using samba .. the problem is when i try to list all configured network interfaces using ifconfig -a .. i can't see the loopback interface, Although the file /etc/sysconfig/network/ifcfg-lo exist Smilie and here is it's content
Code:
[root@localhost network-scripts]# cat ifcfg-lo
DEV...ICE=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

I have tried ifdown and ifup lo .. ddn't work
I have also tried to service netwrok stop/start .. didn't work
I have tried /etc/init.d/network stop/start .. bad news too

Here is the output of hosts file
Code:
[root@localhost]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost

Any recommendation will by appreciated.

Last edited by DukeNuke2; 03-18-2012 at 07:12 PM..
# 2  
What does your /etc/sysconfig/network say? It should have the following entry:

Code:
NETWORKING=yes

# 3  
Quote:
[root@openfiler1 network-scripts]# cat ../network
NETWORKING=yes
HOSTNAME=openfiler1
GATEWAY=10.50.2.1
# 4  
Just turn up the loop back interface up.
type --- ifconfig lo up
then restart the network using --service network restart

Now ,ifconfig will show all your interfaces.
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