DHCP and resolv.conf

Hans Fugal hans at fugal.net
Mon Jul 9 20:55:15 MDT 2007


Look at resolvconf.

On Fri,  6 Jul 2007 at 17:18 -0600, Charles Curley wrote:
> I have a firewall, on which I just installed a text mode only ubuntu
> 7.04. I have two problems related to DHCP. Both interfaces use DHCP.
> 
> * Each time a lease renews, dhclient sets /etc/resolv.conf to the
>   server information in that lease's information. I would like to
>   ignore the information for the external interface, and only use that
>   from the internal. I think I have a partial workaround with the
>   prepend domain-name-servers and supersede domain-name statements,
>   but that leaves me either with two entries for each local server, or
>   the local servers and the ISP's servers.
> 
> * When the firewall boots, dhclient uses both routers to configure the
>   routing table. This means I get two default gateways, with the wrong
>   route first. How do I tell dhclient to ignore the internal
>   interface's gateway (which will be the firewall's internal
>   interface)?
> 
> -- 
> 
> Charles Curley                  /"\    ASCII Ribbon Campaign
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> 
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> 
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-- 
Hans Fugal ; http://hans.fugal.net
 
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right keys at the right time and the instrument plays itself.
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