[Dnsmasq-discuss] Non-FQD request works from older systems but not from newer ones

[Chris Green]

I have a small home network with dnsmasq running on a Raspberry Pi, it
was all working nicely with several systems running xubuntu using the
Pi DNS successfully.

I have just added a new laptop running xubuntu 17.04 and on that
system unqualified local domain name requests fail.

I.e. on an xubuntu 16.04 system:-

***@backup:~$ host esprimo
esprimo.zbmc.eu has address 192.168.1.3
***@backup:~$ host esprimo.zbmc.eu
esprimo.zbmc.eu has address 192.168.1.3
***@backup:~$ host pi
pi.zbmc.eu has address 192.168.1.2
***@backup:~$

... but on the new 17.04 system:-

chris$ host esprimo
Host esprimo not found: 2(SERVFAIL)
chris$ host esprimo.zbmc.eu
esprimo.zbmc.eu has address 192.168.1.3
chris$ host pi
Host pi not found: 2(SERVFAIL)
chris$


The only significant difference (DNS wise) that I can see between the
systems is that the 16.04 systems run the 'run by NetworkManager'
local dnsmasq whereas the new 17.04 system has its local DNS handled
by some part of systemd. On the 17.04 system /etc/resolv.conf is:-

chris$ more /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by
resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
# 127.0.0.53 is the systemd-resolved stub resolver.
# run "systemd-resolve --status" to see details about the actual
nameservers.

nameserver 127.0.0.53
chris$

... and "systemd-resolve --status" returns:-

chris$ systemd-resolve --status
Global
DNSSEC NTA: 10.in-addr.arpa
16.172.in-addr.arpa
168.192.in-addr.arpa
17.172.in-addr.arpa
18.172.in-addr.arpa
19.172.in-addr.arpa
20.172.in-addr.arpa
21.172.in-addr.arpa
22.172.in-addr.arpa
23.172.in-addr.arpa
24.172.in-addr.arpa
25.172.in-addr.arpa
26.172.in-addr.arpa
27.172.in-addr.arpa
28.172.in-addr.arpa
29.172.in-addr.arpa
30.172.in-addr.arpa
31.172.in-addr.arpa
corp
d.f.ip6.arpa
home
internal
intranet
lan
local
private
test

Link 3 (wlp4s0)
Current Scopes: DNS LLMNR/IPv4 LLMNR/IPv6
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
DNS Servers: 192.168.1.2
8.8.8.8
DNS Domain: zbmc.eu

Link 2 (enp0s31f6)
Current Scopes: none
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no

Can anyone suggest what the problem might be? (... and a fix!)