@ChristianEhrhardt: I'm not sure how to determine whether systemd-resolver is forwarding back to dnsmasq, hopefully it's clear from the output:
mdroth@sif:~$ cat /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.
mdroth@sif:~$ systemd-resolve --status
Global
DNS Servers: 127.0.0.1
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 5 (virbr0-nic)
Current Scopes: none
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
Link 4 (virbr0)
Current Scopes: none
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
Link 3 (wlp4s0)
Current Scopes: DNS LLMNR/IPv4 LLMNR/IPv6
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
DNS Servers: 192.168.2.254 fd6d:6e53:4042::1
DNS Domain: lan
Link 2 (enp0s31f6)
Current Scopes: none
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
@ChristianEhrhardt: I'm not sure how to determine whether systemd-resolver is forwarding back to dnsmasq, hopefully it's clear from the output:
mdroth@sif:~$ cat /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 127.0.0.1
mdroth@sif:~$ ps aux | grep dnsmasq dnsmasq. pid -u dnsmasq -r /run/dnsmasq/ resolv. conf -7 /etc/dnsmasq. d,.dpkg- dist,.dpkg- old,.dpkg- new --local-service --trust- anchor= .,19036, 8,2,49AAC11D7B6 F6446702E54A160 7371607A1A41855 200FD2CE1CDDE32 F24E8FB5 file=/var/ lib/libvirt/ dnsmasq/ default. conf --leasefile-ro --dhcp- script= /usr/lib/ libvirt/ libvirt_ leaseshelper file=/var/ lib/libvirt/ dnsmasq/ default. conf --leasefile-ro --dhcp- script= /usr/lib/ libvirt/ libvirt_ leaseshelper
dnsmasq 1122 1.6 0.0 55276 2864 ? S Sep18 10:11 /usr/sbin/dnsmasq -x /run/dnsmasq/
libvirt+ 1794 0.0 0.0 52380 396 ? S Sep18 0:00 /usr/sbin/dnsmasq --conf-
root 1795 0.0 0.0 52352 396 ? S Sep18 0:00 /usr/sbin/dnsmasq --conf-
mdroth 7792 0.0 0.0 14244 1028 pts/6 S+ 06:43 0:00 grep --color=auto dnsmasq
mdroth@sif:~$ cat /run/dnsmasq/ resolv. conf
nameserver 127.0.0.53
mdroth@sif:~$ systemd-resolve --status
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
Global
DNS Servers: 127.0.0.1
DNSSEC NTA: 10.in-addr.arpa
Link 5 (virbr0-nic)
Current Scopes: none
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
Link 4 (virbr0)
Current Scopes: none
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
Link 3 (wlp4s0)
fd6d:6e53: 4042::1
Current Scopes: DNS LLMNR/IPv4 LLMNR/IPv6
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
DNS Servers: 192.168.2.254
DNS Domain: lan
Link 2 (enp0s31f6)
Current Scopes: none
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no