Comment 1 for bug 1874067

Hi,

It seems that the "lxc-dnsmasq.slice" is in faulty state:
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root@c3v:~# systemctl status lxc-dnsmasq.slice
● lxc-dnsmasq.slice
   Loaded: loaded
   Active: active since Tue 2020-04-21 09:47:43 EDT; 4min 20s ago
    Tasks: 0
   CGroup: /lxc.slice/lxc-dnsmasq.slice

Apr 21 09:52:01 c3v lxc-system-manage[22528]: Removing LXC IPtables rules.
Apr 21 09:52:01 c3v lxc-system-manage[22528]: LXC IPtables rules removed.
Apr 21 09:52:03 c3v lxc-system-manage[22595]: Creating LXC IPtables rules.
Apr 21 09:52:03 c3v lxc-system-manage[22595]: LXC IPtables rules created.
Apr 21 09:52:03 c3v lxc-system-manage[22620]: Starting LXC dnsmasq.
Apr 21 09:52:03 c3v lxc-system-manage[22620]: dnsmasq: failed to create listening socket for 10.0.3.1: Address already in use
Apr 21 09:52:03 c3v dnsmasq[22624]: failed to create listening socket for 10.0.3.1: Address already in use
Apr 21 09:52:03 c3v dnsmasq[22624]: FAILED to start up
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I have killed the processes as shown below and then restarted the service. And now it works fine.

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Apr 21 09:52:03 c3v lxc-system-manage[22631]: LXC IPtables rules removed.
root@c3v:~# netstat -alpn | grep 10.0.3.1
tcp 0 0 10.0.3.1:53 0.0.0.0:* LISTEN 5547/named
udp 0 0 10.0.3.1:53 0.0.0.0:* 5547/named
root@c3v:~# kill -9 5547
root@c3v:~# systemctl restart lxc-dnsmasq.slice
root@c3v:~# systemctl status lxc-dnsmasq.slice
● lxc-dnsmasq.slice
   Loaded: loaded
   Active: active since Tue 2020-04-21 09:52:36 EDT; 5s ago
    Tasks: 1
   CGroup: /lxc.slice/lxc-dnsmasq.slice
           └─lxc-dnsmasq.service
             └─24212 dnsmasq --user=lxc-dnsmasq --pid-file=/run/lxc/dnsmasq.pid --conf-file= --listen-address=10.0.3.1 --dhcp-range=10.0.3.2,10.0.3.253 --dhcp-option=6,10.0.3.1 --dhcp-

Apr 21 09:52:36 c3v lxc-system-manage[24197]: LXC IPtables rules created.
Apr 21 09:52:36 c3v lxc-system-manage[24208]: Starting LXC dnsmasq.
Apr 21 09:52:36 c3v dnsmasq[24212]: started, version 2.79 cachesize 150
Apr 21 09:52:36 c3v dnsmasq[24212]: compile time options: IPv6 GNU-getopt DBus i18n IDN DHCP DHCPv6 no-Lua TFTP conntrack ipset auth DNSSEC loop-detect inotify
Apr 21 09:52:36 c3v dnsmasq-dhcp[24212]: DHCP, IP range 10.0.3.2 -- 10.0.3.253, lease time 1h
Apr 21 09:52:36 c3v lxc-system-manage[24208]: dnsmasq started.
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