Re: F21 System Wide Change: Default Local DNS Resolver

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On Wed, 2014-04-30 at 12:16 -0430, Robert Marcano wrote:
> On 04/30/2014 01:17 AM, P J P wrote:
> >> On Wednesday, 30 April 2014 3:18 AM, Al Dunsmuir wrote:
> >> On my home LAN, I run my own DNSSEC-enabled server using F20 & bind 9.
> >> This  local server also is my DHCP and Samba server. As usual, dynamic
> >> clients  receive  the  LAN  local  domain  ID  and  DNS  server  ID
> >> automatically.
> >>
> >> How  does  this  proposed  change  affect my clients, or especially my
> >> server  (which  uses  NetworkManager  (not  Network),  and a static IP
> >> address?
> >
> >    This should work just fine. If you upgrade your F20 machine to say F22, it would have the default resolver running on 127.0.0.1:53 with its entry in '/etc/resolv.conf'. One change you would need to do is to make it listen on 0.0.0.0:53 or the on static IP address of your server. Your clients won't know that they are talking to a different DNS resolver.
> >
> > If your clients are upgraded to F22, NetworkManager there would make the local resolver talk to the one on your server, because it'll receive that name server configuration via DHCP.
> 
> I think the parent post is refering to the local domain name, I have 
> read this thread and people talk about not touching ever the resolv.conf 
> file. What about domain and search lines? If NetworkManager will always 
> use 127.0.0.1, it should still modify resolv.conf with the domain name 
> received from DHCP

Why would you care for the domain name as provided by dhcp ?

By default you wouldn't want that as you roam with a fedora laptop on
completely untrusted dhcp networks that can push whatever crap as a
search path.

Simo.

-- 
Simo Sorce * Red Hat, Inc * New York

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