Re: [gentoo-user] resolv.conf is different after every reboot

[Matti Nykyri <matti.nykyri@iki.fi>]

> On Jul 27, 2014, at 13:33, Grand Duet <grand.duet@gmail.com> wrote:
> 
> 2014-07-27 12:29 GMT+03:00 Neil Bothwick <neil@digimed.co.uk>:
>>> On Sun, 27 Jul 2014 12:21:23 +0300, Grand Duet wrote:
>>> 
>>> In short: the contents of the file /etc/resolv.conf
>>> is unpredictably different from one reboot to another.
>>> It is either
>>>  # Generated by net-scripts for interface lo
>>>  domain mynetwork
>> 
>> That's what you get when lo comes up.
>> 
>>> or
>>>  # Generated by net-scripts for interface "eth0"
>>>  nameserver My.First.DNS-Server.IP
>>>  nameserver My.Second.DNS-Server.IP
>>>  nameserver 8.8.8.8
>> 
>> That's what replaces it when eth0 comes up.
>> It looks like eth0 is not being brought up fully
> 
> It sounds logical. But how can I fix it?
> 
> Can carrier_timeout_eth0= setting in /etc/conf.d/net file help?
> If so, how much seconds should I use?
> 
>> what do your logs say?
> 
> Could you, please, be more precise where to look for "logs".
> 
>> It might be worth putting logger commands in preup(),
>> postup() and failup() in conf.d/net.
> 
> Currently, I have no such functions in my /etc/conf.d/net file.
> Shall I copy them there from
>  /usr/share/doc/netifrc-0.2.2/net.example
> 
> Could you, please, be more specific on these "logger commands" too.
> 
>>> I tried to chmod this file to be unwrittable even for root
>>> but after a reboot it have been overwritten anyway.
>> 
>> You can't stop root overwriting a file, root laughs in the face of file
>> permissions.
>> 
>> BTW, I'm not sure if it's still relevant, but I don't think you ever
>> posted the contents of /etc/resolvconf.conf, if it exists.
> 
> I do not have such file. Of course, if you do not mean /etc/resolv.conf
> But I have posted its content above.
> 

Depending on your filesystem a temporary solution to your problem is to setup /etc/resolv.conf correctly and then:
chattr +i /etc/resolv.conf

After that the content of the file will not change.

-- 
-Matti