Re: Which resolv.conf file?
On Wed 31 Jul 2019 at 08:50:34 (-0400), Greg Wooledge wrote:
> On Wed, Jul 31, 2019 at 09:21:32AM +0300, Reco wrote:
> > On Wed, Jul 31, 2019 at 09:16:03AM +0300, Andrei POPESCU wrote:
> > > On Mi, 31 iul 19, 09:06:36, Reco wrote:
> > > > Assuming it is, and you're using ifupdown, you need to change
> > > > "dns-nameserver" stanza in the interface definition.
> > >
> > > Careful, in /etc/network/interfaces it's 'dns-nameservers' (mind the
> > > trailing 's'), because you can list more servers ;)
> >
> > /usr/share/doc/resolvconf/README.gz disagrees with you:
> >
> > * For each inet static logical interface through which a nameserver
> > is accessible, add lines like the following to /etc/network/interfaces .
> >
> > dns-nameserver 11.22.33.44
> > dns-nameserver 55.66.77.88
> > dns-search foo.org bar.com
>
> Reco is correct.
>
> isc-dhcp-client uses "domain-name-servers" in its configuration file,
> whereas resolvconf uses "dns-nameserver". Most likely, Andrei momentarily
> confused the two.
It might be the documentation that's confused. Here's an extract from
man resolvconf
✄✄✄✄✄✄✄✄
ifup
The ifup program can be used to configure network interfaces
according to settings in /etc/network/interfaces. To make
ifup push nameserver information to resolvconf when it
configures an interface the administrator must add dns- option
lines to the relevant iface stanza in interfaces(5). The
following option names are accepted: dns-nameserver,
dns-search, and dns-sortlist. To add a nameserver IP address,
add an option line consisting of dns-nameserver and the
address. To add multiple nameserver addresses, include
multiple such dns-nameserver lines.
dns-nameserver 192.168.1.254
dns-nameserver 8.8.8.8
To add search domain names, add a line beginning with dns-search.
dns-search foo.org bar.com
The dns-nameservers option is also accepted and, unlike dns-nameserver, can be given mul‐
tiple arguments, separated by spaces.
The dns-domain option is deprecated in favor of dns-search.
The resulting stanza might look like the following example.
iface eth0 inet static
address 192.168.1.3
netmask 255.255.255.0
gateway 192.168.1.1
dns-nameserver 192.168.1.254
dns-nameserver 8.8.8.8
dns-search foo.org bar.com
✄✄✄✄✄✄✄✄
IOW you should be able to write
dns-nameserver 192.168.1.254
dns-nameserver 8.8.8.8
or
dns-nameservers 192.168.1.254 8.8.8.8
But I have no idea whether
dns-nameservers 8.8.8.8
and
dns-nameservers 192.168.1.254
dns-nameservers 8.8.8.8
are supported. Messy.
Cheers,
David.
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