Thanks.. I found the link creation under systemd tmpfiles.d as well and created my own
The use case is when you for security reasons always want to use the same DNS server
manually defined by the user/system.
From: Miguel Bernal Marin [mailto:email@example.com]
Sent: den 28 augusti 2016 17:31
To: Moberg, Patrik; connman(a)lists.01.org
Subject: Re: /etc/resolv.conf disable overwrite
Is there anyway to tell Connman not to overwrite /etc/resolv.conf in
Connman uses systemd tmpfiles to overwrite /etc/resolv.conf, you can edit
/usr/lib/tmpfiles.d/connman_resolvconf.conf to avoid /etc/resolv.conf be overwriten
(remove +, on L+)
As others said connman needs to update resolv.conf, use this with cation.
Clear Linux uses this patch
but this is a particular case.
Miguel Bernal Marin Open Source Technology Center