Re: dhcp problem
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Celejar wrote:
> On Thu, 29 Mar 2007 20:54:34 +0600
> "S. M. Ibrahim (Lavlu)" <smibrahim@gmail.com> wrote:
>
>> My isp is providing me the ip using DHCP. everything fine. But they are
>> sending 3 nameserver. And first DNS server is not responding. SO it take
>> time to switch to the secound dns. So, it's making problem (slow down).
>> I want to keep fix (will not updated or replace by dhcp) the
>> /etc/resolv.conf with only 2 nameserver (that are working).
>> Any idea, how to do this ?
>
>>From 'man dhclient':
>
>> The supersede statement
>>
>> supersede [ option declaration ] ;
>>
>> If for some option the client should always use a locally-configured
>> value or values rather than whatever is supplied by the server, these
>> values can be defined in the supersede statement.
>
> So if you're using dhclient you could try something like:
>
> supersede domain-name-servers a.b.c d.e.f
>
> Also from the manpage:
>
>> The request statement
>>
>> request [ option ] [, ... option ];
>>
>> The request statement causes the client to request that any server
>> responding to the client send the client its values for the specified
>> options. Only the option names should be specified in the request
>> statement - not option parameters. By default, the DHCP server
>> requests the subnet-mask, broadcast-address, time-offset, routers,
>> domain-name, domain-name-servers and host-name options.
>
> So you could write a request line and omit 'domain-name-servers'.
>
> I have not tried any of this.
>
> HTH,
> Celejar
>
>
I had a similar problem. The file /etc/dhcp3/dhclient.conf is the file
that controls resolv.conf (at least on this system). You can specify
which DNS is used first by using
prepend domain-name-servers xxx.xxx.xxx.xxx;
replacing of course the x's with the ip address of the DNS. This line
is already present using 127.0.0.1 but is commented out.
I have tried it, and it works.
Joe
- --
Registerd Linux user #443289 at http://counter.li.org/
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