[CentOS] Disappearing Network Manager config scripts

On 04/30/2014 12:56 PM, Les Mikesell wrote:
> Choice is great, surprises not so much. And I find it surprising that 
> NM sometimes runs, sometimes doesn't, depending on seemingly unrelated 
> things. 

Those would be bugs, and bugs need fixing.  But they can't be fixed if 
they're not reported.

> And I still don't understand how to control what it would do for, say, 
> a dynamically inserted USB device. Is it possible to make it take 
> 'address only' from DCHP in that context? 

NetworkManager doesn't work in terms of interfaces, but in terms of 
connections.  I'll have to try it with a USB Wi Fi before I can answer 
completely, but when you create a connection you get this option, and I 
would think (and I'm going to try it, since I do have a USB Wi Fi NIC at 
home, just not sure if it's supported by ELrepo or not) upon insertion a 
dialog to create a connection will come up, and you select the option 
from the pulldown in the IPv4 tab.  The udev framework allows 
connections to 'belong' to different NICs, as far as I can tell, and is 
what makes the connection persistent across reboots in that sense. But I 
reserve the right to be wrong.