Public bug reported:
Hi,
I'm still struggling with 18.04 and the move from ifupdown to netplan.
I am running a local virtual linux bridge as a network for several
virtual machines and containers, which is to be serviced with dhcp and
dns by dnsmasq.
Conforming to latest designs from Ubuntu the bridge is now started by
netplan and configured in /etc/netplan/60-vlan0.yaml straightforward.
Since there is no ifupdown-scripts anymore, I've configured the default
dnsmasq daemon in /etc/dnsmasq.d/vlan0 to offer dhcp for that bridge.
This works only when started manually.
When booting ubuntu the normal way, the bridge is correctly generated,
and dnsmasq is running, but it does *not* offer DNS for the bridge and
does not occupy its port 53. But just a manual systemctl restart
dnsmasq.service make it run as expected, then everything is fine.
So my guess is that my configuration is correct, but dnsmasq simply
started to early, i.e. before the bridge is created, and thus does not
see the bridge when starting up.
There's something wrong in the dependencies of the startup
configuration.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: dnsmasq 2.79-1
ProcVersionSignature: Ubuntu 4.15.0-23.25-generic 4.15.18
Uname: Linux 4.15.0-23-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CurrentDesktop: LXDE
Date: Fri Jun 15 10:59:43 2018
InstallationDate: Installed on 2018-04-30 (45 days ago)
InstallationMedia: Lubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
PackageArchitecture: all
SourcePackage: dnsmasq
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: dnsmasq (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic
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https://bugs.launchpad.net/bugs/1777094
Title:
dnsmasq startet too early, not getting all ports
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