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

[Grand Duet <grand.duet@gmail.com>]

2014-07-27 19:33 GMT+03:00 James <wireless@tampabay.rr.com>:
> Grand Duet <grand.duet <at> gmail.com> writes:
>
>
>> >> 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 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
>
>
> I set my nameservers all manually in this file and they do
> not every change.

I also thought that /etc/resolv.conf do not change at every
reboot before run into this problem and tried to write down
my own /etc/resolv.conf

> I do not run systemd. I'm not sure of your issue(s) but,
> historically, resolv.conf should not be displaying this behavior.

Historically, may be, but currently the main net config file is
/etc/config.d/net, at least for openRC. /etc/resolv.conf is produced
at every boot from /etc/config.d/net by net-scripts.

>> > and also the output of the "rc-update show" command?
>>
>> # rc-update show
>
>>                      mtab | boot
>>                net.eth0 |      default
>>                     net.lo | boot
>>              netmount |      default
>
>
>> Everywhere above eth0 has been put instead of its udev "predictable" name.
>> Do you think that I need
>>     carrier_timeout_eth0=20
>> somewhere in /etc/conf.d/net ?
>
> I do not try and force the "eth' names onto an interface
> I have these in rc-status:
>
> mtab | boot
> net.enp5s0 |      default
> netmount |      default
>
> I just look at the dmesg output and use the new, default
> funky names. You can read up on these evolving interface
> names by googling.

You did not understood my remark above correctly:
in my system config files I do use these "fu*ky" names
but instead of exposing them to the whole Internet
I have changed a "fu*ky" name for eth0 back to eth0
for better clarity and security. :)

> Here is one link (often posted to this user group) to get you started:
>
>
> http://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames/
>
>
> hth,
> James
>
>