[CentOS] Renaming NIC name in CentOS 7

[Digimer]

To answer this question using my use-case;

I build HA clusters, and I want to make sure that physical port X on all 
nodes have the same device name. Biosdevname tries to address this, but 
doesn't work all the time.

Further, in my case, I've got a minimum of six interfaces in each node, 
paired into three bonded groups. Having the device name reflect the 
purpose in the node is very helpful 12~24 months down the road when I 
need to fix a network problem.

There *are* cogent arguments for renaming interfaces.

cheers

digimer

On 05/10/14 04:17 PM, George Kontostanos wrote:
> I really don't get it. Why get into so much fuss just to rename your
> interfaces????
>
> On Sun, Oct 5, 2014 at 5:18 PM, Eliezer Croitoru <eliezer at ngtech.co.il>
> wrote:
>
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>>
>> Hey Mark,
>>
>> You can use "ip" tools to do the trick.
>> For Ubuntu I wrote this upstart script that helps with it without
>> touching udev.
>> You can see it here:
>> http://www1.ngtech.co.il/paste/1175/
>>
>> You can run this function at runtime and it will change the interface
>> name.
>>
>> On CentOS you will need to find the right "spot" in boot to apply this
>> link.
>> Before NetworkManager and after udev.
>>
>> All The Bests,
>> Eliezer
>>
>> On 10/03/2014 04:12 PM, Richer, Mark (CIV) wrote:
>>> All,
>>>
>>> I am trying to understand better how you give an interface a more
>>> descriptive name and get it all working without a reboot, if
>>> possible.
>>>
>>> We have 1G and 10G interfaces, and I’m trying to use names like
>>> 1G-internal, 1G-external, 10G-private, etc.  When I boot up, it’s
>>> all fine, but if I add one I’m not sure if there is a way to avoid
>>> the reboot? For example, I added the 10G interface names this
>>> week.
>>>
>>> Specifically, is there a way to change the network interface name
>>> you see in ifconfig and nmcli connection without rebooting CentOS
>>> 7?
>>>
>>> I changed the name in network-scripts. I tried to restart
>>> NetworkManager.
>>>
>>> I brought down the interface and tried to rename the file and bring
>>> it up again, but it still retains the previous run-time setting
>>> associated with the same UUID in the file.
>>>
>>> Also I find that on all but one of the server on which I did this,
>>> I can restart NetworkManager, but network.service is failing to
>>> restart. Do I want both active? And if yes,  is this indicative of
>>> a problem related to changing the interfaces that goes away (only)
>>> by rebooting? For some reason, after doing this on several systems,
>>> on only one I can restart network.service, but it also still shows
>>> the old interface name.
>>>
>>> thanks, Mark
>>>
>>> MARK H RICHER, MS CS NPS-NCR Digital Forensics Lab IT Manager
>>> Computer Science Department Naval Postgraduate School - National
>>> Capital Region (NCR) 900 N Glebe Rd, Rm 5-182, Arlington, VA 22203
>>> 571.858.3254 (o) 571.303.9498 (m)
>>> mhricher at nps.edu<mailto:mhricher at nps.edu>
>>>
>>>
>>>
>>> _______________________________________________ CentOS mailing
>>> list CentOS at centos.org
>>> http://lists.centos.org/mailman/listinfo/centos
>>>
>>
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>
>


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Digimer
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