Overwriting /etc/resolv.conf

On 14 Apr 2005 20:51:07 CST, JGH wrote:
> I have a dsl connection throug my local phone company. Every so often, the
> changes I make to /etc/resolv.conf are over written. I use dhcpc to get the
> connection. Can I make it stop?

Should be able tol

> Will it mess up my connection if I do?

No idea what you are doing in resolv.conf.

There are 190+ linuxes.
Please read http://www.catb.org/~esr/faqs/smart-questions.html
Always provide distribution, release, and if Mandrake, community,
official, cooker, when posting questions.
It could help you get better answers.

I know on Mandrake linux I can
add PEERDNS=no to /etc/sysconfig/network-scripts/ifcfg-X
where X is the interface config file or add it to /etc/sysconfig/network
to suppress resolv.conf update.

I have a dsl connection throug my local phone company. Every so often, the
changes I make to /etc/resolv.conf are over written. I use dhcpc to get the
connection. Can I make it stop? Will it mess up my connection if I do?

JGH <(E-Mail Removed)> wrote:
>I have a dsl connection throug my local phone company. Every so often, the
>changes I make to /etc/resolv.conf are over written. I use dhcpc to get the
>connection. Can I make it stop? Will it mess up my connection if I do?

"man dhcpcd" give you this information:

-R Prevents dhcpcd from replacing existing
/etc/resolv.conf file.

-Y Prevents dhcpcd from replacing existing
/etc/yp.conf file. Domainname is not
updated unless -D is specified.

-N Prevents dhcpcd from replacing existing
/etc/ntp.conf file.

The man pages are wonderful things... but only *if* you read them!

--
Floyd L. Davidson <http://web.newsguy.com/floyd_davidson>
Ukpeagvik (Barrow, Alaska) (E-Mail Removed)

Floyd L. Davidson wrote:
> "man dhcpcd" give you this information:
>
> -R Prevents dhcpcd from replacing existing
> /etc/resolv.conf file.
>
> -Y Prevents dhcpcd from replacing existing
> /etc/yp.conf file. Domainname is not
> updated unless -D is specified.
>
> -N Prevents dhcpcd from replacing existing
> /etc/ntp.conf file.
>
> The man pages are wonderful things... but only *if* you read them!
>

and what if you don't have dhcpcd?

i had this problem as well. what worked for me is adding some lines to
my dhclient.conf file. mine is in:
/etc/dhcp3/dhclient.conf

look for the 'supersede' or 'prepend' options. and add your dns servers
there. that way when your resolv.conf files gets (over)written, at least
it will be written with what you want.



--
Windows (OS) is like a gun - unless it's loaded, it's harmless.

On Thu, 14 Apr 2005 20:51:07 -0600, JGH wrote:

> I have a dsl connection throug my local phone company. Every so often, the
> changes I make to /etc/resolv.conf are over written. I use dhcpc to get the
> connection. Can I make it stop? Will it mess up my connection if I do?

set the immutable bit:
chattr +i /etc/resolv.conf

--
Tayo'y Mga Pinoy

"JGH" <(E-Mail Removed)> wrote in message
news:Xns9638D7291D3D0mjohnheimcom@216.170.153.136. ..
> I have a dsl connection throug my local phone company. Every so often, the
> changes I make to /etc/resolv.conf are over written. I use dhcpc to get
the
> connection. Can I make it stop? Will it mess up my connection if I do?
>

Out of curiosity so I understand, why does it matter
if your /etc/resolv.conf is overwritten if your
computer is a dhcp client?

"Tom" <(E-Mail Removed)> writes:


>"JGH" <(E-Mail Removed)> wrote in message
>news:Xns9638D7291D3D0mjohnheimcom@216.170.153.136 ...
>> I have a dsl connection throug my local phone company. Every so often, the
>> changes I make to /etc/resolv.conf are over written. I use dhcpc to get
>the
>> connection. Can I make it stop? Will it mess up my connection if I do?
>>

>Out of curiosity so I understand, why does it matter
>if your /etc/resolv.conf is overwritten if your
>computer is a dhcp client?

I do not kno his reasons, but I find some ISPs dns servers are really
crappy, and want to use one with better response. Of course some isps block
dns requests going out in which case you have no choice.

I think it depends on your linux disto.

If you use Suse you can probably use Yast to manually add servers that
will be put there as defaults when it is updated.

I think!

Coenraad Loubser wrote:
> I think it depends on your linux disto.
>
> If you use Suse you can probably use Yast to manually add servers that
> will be put there as defaults when it is updated.
>
> I think!

Or search /etc/sysconfig

On Thu, 14 Apr 2005 20:51:07 -0600, JGH wrote:

> I have a dsl connection throug my local phone company. Every so often, the
> changes I make to /etc/resolv.conf are over written. I use dhcpc to get the
> connection. Can I make it stop? Will it mess up my connection if I do?

The right solution is to get a router and use that as your gateway.
Routers are cheap and they give you an extra layer of defense. You can
connect to the router using a static IP.