Set DNS Servers For All Wifi Networks

[Karl Auer]

On Wed, 2014-09-10 at 14:42 -0500, Sajan Parikh wrote:
> Is there a way for me to default all new connections to DHCP Address 
> Only, and set some sort of permanent DNS servers?  I thought about 
> throwing them into /etc/resolv.conf, but I assume that gets overwritten 
> everytime I switch connections.

It's a while since I looked at this, but IIRC if you are using Network
manager /etc/resolv.conf is actually a link
to /etc/run/resolvconf/resolv.conf, a version of resolv.conf that is
managed by Network manager. If you break that link, by deleting and
recreating /etc/resolv.conf, then your changes to/etc/resolv.conf should
"stick". If you do this, I suggest writing a script that makes or breaks
the link, so that you can easily go back to the normal defaults if you
wish.

Alternatively, look at /etc/NetworkManager/dispatcher.d. There are
scripts in there that are run in response to various events, and you can
add your own. Read "man NetworkManager" for more information.

If your resolv.conf contains 127.0.0.1, then you are running dnsmasq (a
little local nameserver) and life may be a little more complex. See the
"NOTES" section in "man dnsmasq".

Regards, K.

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Karl Auer (kauer at biplane.com.au)
http://www.biplane.com.au/kauer
http://twitter.com/kauer389

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