[Dnsmasq-discuss] How to use bogus-nxdomain in conjunction with addn-hosts
Alexander Huemer
eiloarae8Phe at xx.vu
Mon Jul 22 17:37:16 BST 2019
Hi
I have added a hosts(5)-style file to dnsmasq with 'addn-hosts='.
All entries point to the same IP address.
This works as expected, querying this dnsmasq instance for any of the
entries results in a response with said IP address.
Actually I'd like queries for any of these hosts to result in an
NXDOMAIN response.
According to my understanding the bogus-nxdomain option serves exactly
this purpose, though setting bogus-nxdomain=<my special IP address>
doesn't work. I still get the IP address instead of NXDOMAIN.
I suspected that maybe bogus-nxdomain does not work in concjunction with
'addn-hosts'-supplied data but wasn't sure.
To validate that I am actually using the feature correctly I have added
another bogus-nxdomain entry with an IP address of a well-known host on
the internet and got an NXDOMAIN response from dnsmasq, as expected so I
guess bogus-nxdomain and addn-hosts don't work in conjunction with each
other.
Questions:
(1) Is this known/expected behavior?
(2) Can I somehow achieve what I desire?
I guess a workaround for my issue is to work with two instances of
dnsmasq. One serves the content of the addn-hosts file to the other over
DNS, the second instance then does bogus-nxdomain on those. Even though
I guess this would work (I haven't tried yet) I'd like to avoid that
approach if anybody has a good idea what else i could do.
-Alex
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