CentOS - Mar 2016 - CentOS 7, systemd, nmcli, wifi, oh, my...

I've been googling, but haven't come up with a satisfactory answer to
the
question of how I permanently turn off wifi on a workstation or server
(which are *all* hardwired).

I see I can turn wifi off... but I don't know that it's permanent.

        mark

On 3/21/2016 1:36 PM, m.roth at 5-cent.us wrote:
> I've been googling, but haven't come up with a satisfactory answer
to the
> question of how I permanently turn off wifi on a workstation or server
> (which are*all*  hardwired).
>
> I see I can turn wifi off... but I don't know that it's permanent.

wifi on a server?!?    never ever seen such a thing.

and any wifi on a desktop workstation that I've ever seen has been on a 
pci-e card.

-- 
john r pierce, recycling bits in santa cruz

John R Pierce wrote:
> On 3/21/2016 1:36 PM, m.roth at 5-cent.us wrote:
>> I've been googling, but haven't come up with a satisfactory
answer to
>> the question of how I permanently turn off wifi on a workstation or
>> server (which are*all*  hardwired).
>>
>> I see I can turn wifi off... but I don't know that it's
permanent.
>
> wifi on a server?!?    never ever seen such a thing.
>
> and any wifi on a desktop workstation that I've ever seen has been on a
> pci-e card.
No, not that *any* of them have it on, it's that NM is factory-set to try
to bring it up. Which is obviously annoying. Having to turn off
avahi-daemon is another of my annoyances.

        mark

On 03/21/2016 01:36 PM, m.roth at 5-cent.us wrote:
> I've been googling, but haven't come up with a satisfactory answer
to the
> question of how I permanently turn off wifi on a workstation or server
> (which are*all*  hardwired).
I know you've brought this up before, though I can't find any instance 
where you've specifically included the wifi related log entries.

However, on a quick look, I don't see any noise in any logs from CentOS 
7 hosts.  All of the hosts I've checked use NetworkManager, and 
NetworkManager-wifi is installed.  Have you considered that the noise in 
your logs is there *because* you're removing NetworkManager components?  
Maybe set up a test host with a default configuration, make changes 
individually and slowly, and try to determine at what point the log 
noise starts.

On 03/21/2016 04:50 PM, John R Pierce wrote:
> wifi on a server?!?    never ever seen such a thing.
I actually have, for a remote, solar-powered setup where there was no 
fiber or other infrastructure to the system.  Server was a sensor 
platform.  But networking is networking, regardless of the particular 
layer 1 in use.
>
> and any wifi on a desktop workstation that I've ever seen has been on 
> a pci-e card.
>
I'm running a few workstation setups with USB WiFi NICs.  These are 
again due to some odd infrastructure restrictions where running cable 
(UTP/ScTP or fiber) was impractical or cost-prohibitive.  Or in one case 
where cable simply could not be run at any price due to not being able 
to disturb properly encapsulated asbestos.

Am 23.03.2016 um 16:03 schrieb Lamar Owen <lowen at
pari.edu>:
> On 03/21/2016 04:50 PM, John R Pierce wrote:
>> wifi on a server?!?    never ever seen such a thing.
> 
> I actually have, for a remote, solar-powered setup where there was no fiber
or other infrastructure to the system.  Server was a sensor platform.  But
networking is networking, regardless of the particular layer 1 in use.
> 
>> 
>> and any wifi on a desktop workstation that I've ever seen has been
on a pci-e card.
>> 
> 
> I'm running a few workstation setups with USB WiFi NICs.  
> These are again due to some odd infrastructure restrictions where running
cable (UTP/ScTP or fiber) was impractical or cost-prohibitive.  Or in one case
where cable simply could not be run at any price due to not being able to
disturb properly encapsulated asbestos.

may i ask what kind of NICs, just curious ...?

--
LF