[Dnsmasq-discuss] local-service feature not working as expected

[T o n g]

On Sat, 31 Jan 2015 03:44:26 +0000, T o n g wrote:

>> I following the following to config dnsmasq as DHCP and DNS server
>> http://sfxpt.wordpress.com/2013/11/30/dnsmasq-installation-
>> configuration-5/
>> 
>> It works well till Ubuntu 13.10. However, with Ubuntu 14.10, the dns
>> query from localnetwork will always timeout...
> 
> Just for the archive, I've found the problem...
> 
> I.e., that `--listen-address=127.0.1.1` will willfully ignore any dns
> queries from local network. This is the exact reason causing the symptom
> that I reported above. More details at
> https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1414887/
comments/2

I fixed the above problem and now my dnsmasq is starting like this:

  dnsmasq  12608     1  0 09:45 ?        00:00:00 /usr/sbin/dnsmasq -x /
var/run/dnsmasq/dnsmasq.pid -u dnsmasq -7 /etc/dnsmasq.d,.dpkg-dist,.dpkg-
old,.dpkg-new --local-service

However, I think that `local-service` feature is not working as expected 
because when I was querying from local network, I still get timed out:

```
$ dig @192.168.2.122 google.ca 

; <<>> DiG 9.9.5-4.3-Ubuntu <<>> @192.168.2.122 google.ca
; (1 server found)
;; global options: +cmd
;; connection timed out; no servers could be reached
```

Only when I start dnsmasq manually without that `local-service`, did I 
get respond for localnetwork query:

```
service dnsmasq stop
 * Stopping DNS forwarder and DHCP server dnsmasq                 [ OK ] 

/usr/sbin/dnsmasq -x /var/run/dnsmasq/dnsmasq.pid -u dnsmasq -7 /etc/
dnsmasq.d,.dpkg-dist,.dpkg-old,.dpkg-new &
```

>From another machine:

```
$ dig @192.168.2.122 google.ca 
...
;; ANSWER SECTION:
google.ca.              300     IN      A       173.194.43.87
...
;; Query time: 62 msec
;; SERVER: 192.168.2.122#53(192.168.2.122)
;; WHEN: Sat Jan 31 10:12:00 EST 2015
;; MSG SIZE  rcvd: 248

$ ifconfig 
eth0      Link encap:Ethernet  HWaddr 00:...:ef  
          inet addr:192.168.2.64  Bcast:192.168.2.255  Mask:255.255.255.0
```

The only difference is with or without that `local-service`. But wouldn't 
`local-service` be meant for localnetwork query to be OK? 

       --local-service
          Accept DNS queries only from hosts whose address is on  a  local
          subnet, ie a subnet for which an interface exists on the server.

192.168.2.64 and 192.168.2.122 are sure on the same local subnet. 

Comments? 

Thanks