[Dnsmasq-discuss] Problem with 127.0.1.1 versus 127.0.0.1

[Chris Green]

I use dnsmasq on a number of, mostly Ubuntu, home systems. One system
at 192.168.1.2 acts as the DNS server for my LAN, then there are
several 'client' systems that just use dnsmasq as a caching DNS server
for their own lookups.

I *suspect* I have a problem with looking up names via the local
dnsmasq because it is listening only on 127.0.1.1 and the request is   
on 127.0.0.1#53.

for example a 'host'command on my laptop returns:-

    chris$ host jacquibennett.com
    ;; communications error to 127.0.0.1#53: timed out
    jacquibennett.com has address 153.92.6.161
    jacquibennett.com has IPv6 address 2a02:4780:a:1080:0:174b:7855:7
    jacquibennett.com mail is handled by 5 mx1.hostinger.com.
    jacquibennett.com mail is handled by 10 mx2.hostinger.com.

But dnsmasq is running on the laptop:-

dnsmasq     7443       1  0 09:27 ?        00:00:01 /usr/sbin/dnsmasq -x /run/dnsmasq/dnsmasq.pid -u dnsmasq -7 /etc/dnsmasq.d,.dpkg-dist,.dpkg-old,.dpkg-new --local-service --trust-anchor=.,20326,8,2,e06d44b80b8f1d39a95c0b0d7c65d08458e880409bbc683457104237c7f8ec8d


The dnsmasq configuration file on the laptop (and other client
systems) is almost non-existent, it's just:-

    resolv-file=/run/NetworkManager/no-stub-resolv.conf

... /run/NetworkManager/no-stub-resolv.conf is:-

    # Generated by NetworkManager
    search zbmc.eu
    nameserver 192.168.1.2


... and in /etc/dnsmasq.d I just have a blacklist file with lots of
address=<something> entries, but that's all.  The /etc/default/dnsmasq
file just has:-

    ENABLED=1
    CONFIG_DIR=/etc/dnsmasq.d,.dpkg-dist,.dpkg-old,.dpkg-new


So why do I get that timeout error from the 'host' coommand? It's as
if dnsmasq on the local machine isn't listening on 127.0.0.1.  Does it
only listen on 127.0.1.1 by default?

-- 
Chris Green