Re: [gentoo-user] Override DHCP-provided DNS

[Dale <rdalek1967@gmail.com>]

Juan Diego Tascón wrote:
> On Wed, Jun 15, 2011 at 9:27 AM, YoYo Siska<yoyo@gl.ksp.sk>  wrote:
>    
>> On Wed, Jun 15, 2011 at 04:07:43PM +0200, Florian Philipp wrote:
>>      
>>> Hello list!
>>>
>>> for some wireless access points, I want to get an IP via DHCP but not
>>> use the provided DNS-server (I use an openvpn setup with its own DNS
>>> server, domain name, etc.).
>>>
>>> In /usr/share/doc/openrc-0.8.2-r1/net.example it reads:
>>> # Setting name/domain server causes /etc/resolv.conf to be overwritten
>>> # Note that if DHCP is used, and you want this to take precedence then
>>> # please put -R in your dhcpcd options
>>>
>>> But dhcpcd does not seem to have a -R option. It does have a --static
>>> option, though. While this is good enough for simply setting the DNS
>>> server, it does not seem to allow specifying domain names or
>>> search-domains (at least it is not shown in the man-page).
>>>
>>> Please tell me what the proper way is and whether the mention of "-R" is
>>> a documentation bug.
>>>
>>> Thanks in advance,
>>> Florian Philipp
>>>        
>> from the man page, this seems to do  what you want
>> (never tried, i use dhclient and its /etc/dhcp/dhclient.conf):
>>
>>      -C, --nohook script
>>              Don't run this hook script.  Matches full name, or prefixed with 2 numbers optionally ending with .sh.
>>
>>              So to stop dhcpcd from touching your DNS or MTU settings you would do:-
>>                    dhcpcd -C resolv.conf -C mtu eth0
>>
>>
>>   yoyo
>>
>>
>>      
> I use the google dns servers so I created a /etc/resolv.conf file and
> set the i attribute on it:
>
> chattr +i /etc/resolv.conf
>
> that way it can't be removed or overwritten and you won't have that
> problem no matter what dhcp client you are using
>
>
>    

Does this still work?

config_eth0=( "dhcp" )
dhcp_eth0="nodns"
dns_servers_eth0="8.8.8.8 8.8.4.4"

This worked before the openrc update but I guess it still does.  Someone 
speak up if it doesn't.

Hope that helps.

Dale

:-)  :-)