Re: Getting (a little more) started

On 07 April 2017 at 17:35 Dan Williams <dcbw redhat com> wrote:

On Fri, 2017-04-07 at 17:17 +0100, Colin Helliwell wrote:

On 07 April 2017 at 17:15 Colin Helliwell <colin.helliwell@ln-syste> wrote:

On 07 April 2017 at 17:06 Dan Williams <dcbw redhat com> wrote:

On Fri, 2017-04-07 at 16:12 +0100, Colin Helliwell wrote:

I've got NM installed n running on my embedded system. I can
conn up modem' and the ppp link on my GSM modem comes up nicely
ifconfig reports inet and P-t-P addresses, and I seem able to
ping/traceroute through it to the interweb, but I may have some

Being embedded and headless I don't have nice GUI widgets to
help me,
so I might need some more manual configuration or tidying of
I'm using systemd, and also have running /lib/systemd/systemd-
networkd, /lib/systemd/systemd-resolved, /usr/bin/dnsmasq,
I built NM with '--with-resolvconf=yes', and the [Yocto] image
has the resolveconf package included, but I'm unclear how these
relate to "/lib/systemd/systemd-resolved" and whether they have
common/conflicting configurations.

They will potentially conflict as there can only be one manager
/etc/resolv.conf, and both these things want to manage it.

NM 1.6+ has support for systemd-resolved and this will
automatically be
used if resolv.conf is managed by systemd-resolved and no other
mode is
configured in NetworkManager.conf.

So leave out the resolvconf package and leave it to NM & systemd-

And if so, is '--with-resolvconf=yes' aimed at resolvconf (i.e. set
it to no instead), or at systemd-resolved...?

Even if you set it to yes, you should still be able to set the
resolv.conf management mode via NM.conf. The options are "dns" and
"rc-manager"; in your case if you want to use systemd-resolved as the
main management mode you'd:


I think.

Thanks. I've tidied up a bit and removed resolveconf (the app) and dnsmasq. Still seems to work, with or 
without those settings, but I'm not sure what - if anything - I should be seeing in the various versions of 
Shouldn't the above settings cause /etc/resolv.conf [symlink'd here to /run/systemd/resolve/resolv.conf] to 
have the active nameserver(s) added?
There's a IP4.DNS[1] for in 'nmcli dev show', but I thought I'd read that some apps/libs rely on 
However, when I bring up the GSM modem connection, /etc/resolv.conf *is* then modified to have the Eth0 dns 

[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]