[CentOS] Disappearing Network Manager config scripts

[Les Mikesell]

On Wed, Apr 30, 2014 at 10:01 AM, Keith Keller
<kkeller at wombat.san-francisco.ca.us> wrote:
>
> No settings might be better.  If I take my laptop from one site to
> another, keeping my previous resolv.conf intact, and NM doesn't remove
> it, then my laptop will try to query the previous site's DNS.  They may
> not like that; depending on how paranoid they are, they may even take
> measures to block my traffic.  Even if not, I may see some really
> bizarre DNS behavior which could be difficult to troubleshoot, whereas
> having no DNS at all will be very obvious very quickly.

So you only have one network interface active at a time?    Our
servers typically have at least 6 NICs and it is pretty common to have
at least 4 active on different subnets.  And bringing up a new
interface does _not_ mean I always want to use the DNS servers or
default route DHCP might offer.

-- 
  Les Mikesell
    lesmikesell at gmail.com