[GRLUG] /etc/resolv.conf

Bob Kline bob.kline at gmail.com
Mon Aug 9 23:20:02 EDT 2010


On Mon, Aug 9, 2010 at 10:53 PM, Godwin <godwin at grandrapids-lug.org> wrote:

> On Mon, Aug 9, 2010 at 9:33 PM, Bob Kline <bob.kline at gmail.com> wrote:
>
>> It's looking like it might come down to that.
>>
>> Which ones are relevant?
>>
>>    -- Bob
>>
>>
>> On Mon, Aug 9, 2010 at 9:24 PM, Michael Mol <mikemol at gmail.com> wrote:
>>
>>> I recommend you read the relevant manpages.
>>>
>>> On Mon, Aug 9, 2010 at 9:22 PM, Bob Kline <bob.kline at gmail.com> wrote:
>>> > Could be.  The configuration is not
>>> > anything I did.  Some of it seems to
>>> > date from when I set up the system.
>>> > Something found my ISP, via the
>>> > Ethernet connection, and presumably
>>> > set things accordingly.
>>> > As I said, I commented out a few things
>>> > in the dhcpcd and wicd areas, so maybe
>>> > that will override the changes....
>>> >     -- Bob
>>> >
>>> >
>>> > On Mon, Aug 9, 2010 at 8:53 PM, Michael Mol <mikemol at gmail.com> wrote:
>>> >>
>>> >> That depends on if you have your dhcp client configured to control it.
>>> >>
>>> >> I'm not familiar with wicd.
>>> >>
>>> >> On Mon, Aug 9, 2010 at 8:48 PM, Eric Hartwell <eric at erichartwell.net>
>>> >> wrote:
>>> >> > What device is giving out DHCP addresses? That device writes to
>>> >> > resolv.conf
>>> >> > when your computer requests and IP.
>>> >> >
>>> >> >
>>> >> > - eah
>>> >> > On Aug 9, 2010, at 8:26 PM, Bob Kline <bob.kline at gmail.com> wrote:
>>> >> >
>>> >> > I changed my nameserver entries
>>> >> > in /etc/resolv.conf to use Google's.
>>> >> > Much faster.
>>> >> > But something keeps changing it
>>> >> > back to Comcast's entries. Often.
>>> >> > I can see that there are resolv.conf
>>> >> > entries in several places,  including
>>> >> > /var/lib/dhcpcd and /var/lib/wicd.
>>> >> > Not what I want.
>>> >> > Can someone provide a short word
>>> >> > salad about how the resolv.conf entry
>>> >> > in /etc/ is managed, and suggest how
>>> >> > I go about overriding the changes?
>>> >> > I can always tell when my changes are
>>> >> > overwritten, because things slow down.
>>> >> >    -- Bob
>>> >> >
>>>
>>>
> ...both Network Manager and WICD <should> allow you to specify your own
> DNS.   Network Manager calls it "Automatic (DHCP) address only".  Per this
> screenshot <http://wicd.net/screenshot.php>, WICD calls it "Use Static
> DNS".  I just tried it with Network Manager and /etc/resolv.conf does
> reflect the change (after disabling/reenabling networking).
>
> As JT said, though, that's something that your router should allow you to
> set.  I run "m0n0wall" as my router and can specify which upstream DNS's it
> will use and in what order.  My PCs just get the router's IP as their DNS.
>
> G-
>
> Thank's.  I'm not proud of it, but a little
trial and error got me where I want to be.
Hopefully without unintended consequences.

     -- Bob

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