[Dnsmasq-discuss] MX forwarding

[Gene Czarcinski]

On 08/23/2012 10:26 AM, Gene Czarcinski wrote:
> For a query from test2 of "host xxx", the response were:
>
> query[A]: config xxx.tst is NXDOMAIN-IPv6
> query[A]: config xxx is NODATA-IPv4
> query[AAAA]: config xxx is NODATA-IPv6
> query[MX]: forwarded xxx to 192.168.122.1    <<------------
I have been looking at the code.  I really do not want to spend the time 
to figure out everything about how dnsmasq works and, thus, I may be 
misunderstanding something.

This whole deal came up because I realized that, by default, 
/usr/bin/host will query for A, AAAA, and MX records.

First of all, let me expand on questions.  If "domain-needed" is 
specified in the conf file or on the command line, then I believe that 
NO (repeat NO), query requests should be forwarded for any query types 
... not just A or AAAA.

Does anyone have a reason that the above should not be the case (that is 
some plain-name queries should be forwarded even if domain-needed is 
specified?

OK, in the little looking at the code, I believe that some changes are 
needed in forward.c around line 212 or at least somewhere in the 
search_servers routine.

In my testing, I have come up with yet another corner-case: if you use 
"host ." then, sure enough all the queries are forwarded.  I cannot see 
why this should be done.

All of these "problems" are really corner-cases ... I can see myself, if 
I was writing the code, think why worry about that, that type of query 
will never be issued.  Yeah, right.

Any comments are appreciated.

Gene