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How to set up a static IP in a CentOS Server 6.5

Posted on 2014-01-11
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Last Modified: 2014-12-01
HI

I have a virtualized linux CentOS distro in virtualbox, by now I can see a dynamic IP associated to eth0 device on linux, so first of all, I tried to set up an static IP using system-config-network tool, but there isn't any device detected on the list, after that I went to the /etc/sysconfig/network-scripts path but there isn't any ifcfg-eth0 file, I wonder if all that is because the virtualization.

Regards.
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Question by:dimensionav
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Expert Comment

by:lruiz52
ID: 39773897
Have you looked at the link below; show how to config centOS on virtual box.

http://extr3metech.wordpress.com/2013/05/23/configuring-network-in-centos-6-3-virtual-box-screenshots/
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Expert Comment

by:Mazdajai
ID: 39774136
Did you install the guest addition?

https://www.virtualbox.org/manual/ch04.html

Can you clarify the following statement? It is a bit confusing. Do you see any network device in the guest?

"I can see a dynamic IP associated to eth0 device on linux, so first of all, I tried to set up an static IP using system-config-network tool, but there isn't any device detected on the list"
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Author Comment

by:dimensionav
ID: 39774224
This is what I mean with "I tried to set up an static IP using system-config-network tool, but there isn't any device detected on the list":

system-config-network tool
And this when I said that there isn't any file named ifcfg-eth0:

ifcfg-eth0
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Expert Comment

by:Mazdajai
ID: 39774231
Did you install guest addition?
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Author Comment

by:dimensionav
ID: 39774323
No I didn't but I think I should, right?
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Author Comment

by:dimensionav
ID: 39775442
I have done this procedure: http://www.if-not-true-then-false.com/2010/install-virtualbox-guest-additions-on-fedora-centos-red-hat-rhel/ and now, Virtual Box Guess Additions are now installed but I am still uncapable of see any device using system-config-network tool or even manually, inside the directory /etc/sysconfig/network-scripts there isn't any ifcfg-eth0

Regards.
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Expert Comment

by:Mazdajai
ID: 39775587
Did you add a virtual network adapter to the guest and make sure it is connected?
What is the make and model of the hardware network adapter?
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Author Comment

by:dimensionav
ID: 39775763
"Did you add a virtual network adapter to the guest and make sure it is connected? "
Do you mean this?:
network settings
And finally, by now the virtual machine is in a Dell Studio 1535 laptop with a WLAN 1397 Half MiniCard (4312bg).
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Author Comment

by:dimensionav
ID: 39777708
What I did was to start the server in graphical mode (I didn't know this could be possible by using startx) and then stablished static IP for eth0 device.

By now, If I go to /etc/sysconfig/network-scripts there is a new file called ifcfg-Auto_eth0 which contains all the information related with the static IP previously configured.

Regards.
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Accepted Solution

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Mazdajai earned 500 total points
ID: 39777906
Did you add the virtual adapter after my posting? Is there a ifcfg-eth0 in /etc/sysconfig/network-scripts now?
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Author Comment

by:dimensionav
ID: 39777969
Did you add the virtual adapter after my posting?
- No, It has been added since I installed the virtual OS for the very first time.

Is there a ifcfg-eth0 in /etc/sysconfig/network-scripts now?
- No, there is just a ifcfg-Auto_eth0 file.
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Expert Comment

by:Mazdajai
ID: 39780963
Are you using bridged networking? What version of guest addition you installed?

Have you try using a wired connection instead of wireless?
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Expert Comment

by:Sandy
ID: 39784911
#service NetworkManager stop
#chkconfig --list NetworkManager off
#cd /etc/sysconfig/network-scripts/
#mv ifcfg-Auto_eth0 ifcfg-eth0
#vi ifcfg-eth0
IPADDR=x.x.x.x
NETMASK=x.x.x.x
GATEWAY=x.x.x.x
onboot=yes
::wq

#ifup eth0
#ifconfig eth0

TY/SA
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Author Comment

by:dimensionav
ID: 39800339
Are you using bridged networking?
YES

What version of guest addition you installed?
4.2.14

Have you try using a wired connection instead of wireless?
I just tried and there insn't any device yet.
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Expert Comment

by:Sandy
ID: 39802323
did you tried what i had mentioned ? TY/SA
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Author Comment

by:dimensionav
ID: 39844172
Yes, and now after running system-config-network tool, I have two ethernet devices in the list, the Auto and the new eth0 created, but If I check the files in /etc/sysconfig/network-scripts there is only one file "ifcfg-eth0"

Regards.
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Expert Comment

by:Mazdajai
ID: 39852025
Are you able to ping the guest from the desktop? What is the /etc/sysconfig/network-scripts/ifcfg-eth0 look like?
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Expert Comment

by:Sandy
ID: 39852443
Configure the IP and paste output of #ifconfig eth0 and also try to ping outer network.

TY/SA
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Author Comment

by:dimensionav
ID: 39926521
Are you able to ping the guest from the desktop? YES

What is the /etc/sysconfig/network-scripts/ifcfg-eth0 look like?:
network scripts
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Author Closing Comment

by:dimensionav
ID: 40473821
Since there is no answer, this is the most close to a solution.
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