* Re: [gentoo-user] Wireless DHCP takes over resolv.conf
@ 2016-07-12 22:58 99% ` Marat BN
0 siblings, 0 replies; 1+ results
From: Marat BN @ 2016-07-12 22:58 UTC (permalink / raw
To: gentoo-user
The solution I use when dealing with the problem of network software
overwriting '/etc/resolf.conf' is to make that file immutable with
'chattr +i'.
Not quite an answer to your question on nameserver prioritization, but
could be useful to prevent your nameservers from being changed.
-- Marat
On 07/09/2016 07:53 AM, Mick wrote:
> Hi All,
>
> I just noticed my resolv.conf is topped up with the nameservers of the
> wireless LAN I happen to be associated at the time and my wired ethernet
> nameserver(s) are pushed further down. This happens despite the fact that I
> have configured my wired ethernet to have a lesser priority than the wired NIC.
>
> For example:
>
> less /etc/resolv.conf
> # Generated by dhcpcd from wlan0.dhcp, enp11s0.dhcp
> # /etc/resolv.conf.head can replace this line
> domain openwifi
> nameserver 192.168.22.22
> nameserver 192.168.22.23
> nameserver 10.10.10.254
> # /etc/resolv.conf.tail can replace this line
>
> The first 3 non-commented entries were produced by wlan0, demoting my wired
> ethernet nameserver.
>
> ip route show
> default via 10.10.10.254 dev enp11s0 metric 10
> default via 10.160.95.1 dev wlan0 metric 20
> 10.10.10.0/24 dev enp11s0 proto kernel scope link src 10.10.10.7 metric 10
> 10.160.95.0/29 dev wlan0 proto kernel scope link src 10.160.95.2 metric 20
> 127.0.0.0/8 dev lo scope host
>
> If I am associated, but not authenticated with the wireless LAN, any URLs I
> try to visit will be queried with the 192.168.22.2* nameserver, before it
> times out and 10.10.10.254 takes over.
>
> Waiting for URLs to resolve becomes tedious after a while. Is there a way to
> prioritise nameservers so that the NIC metric is respected, whenever the
> resolv.conf content is updated?
>
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2016-07-09 14:53 [gentoo-user] Wireless DHCP takes over resolv.conf Mick
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