dig doesn't resolve host instead showing IP address

mojorisin · 11-01-2012, 02:38 PM

Hello,

I'm running DiG 9.7.6-P1 and I was trying to analyze the DNS lookup via dig. When I enter the following command

Code:

$ dig +trace +additional -t A www.heise.de

I'm receiving something like this

Code:

de.			172800	IN	NS	a.nic.de.
de.			172800	IN	NS	f.nic.de.
de.			172800	IN	NS	s.de.net.
de.			172800	IN	NS	z.nic.de.
de.			172800	IN	NS	n.de.net.
de.			172800	IN	NS	l.de.net.
;; Received 344 bytes from 192.36.148.17#53(192.36.148.17) in 379 ms

My second linux machine is giving me the following output:

Code:

 de.			172800	IN	NS	a.nic.de.
 de.			172800	IN	NS	n.de.net.
 de.			172800	IN	NS	f.nic.de.
 de.			172800	IN	NS	z.nic.de.
 de.			172800	IN	NS	l.de.net.
 de.			172800	IN	NS	s.de.net.
 ;; Received 344 bytes from 192.58.128.30#53(j.root-servers.net) in 32 ms

As you can see, the last line is different. I'm trying to get my first machine also showing the host name of the responding DNS-Server instead of the IP-address. Any ideas where the problem is?

bathory · 11-02-2012, 08:48 AM

Hi,

I guess this is due to different dig versions. I see the same behavior (resolving the respong dns IP) for bind-9.7.3, but not for the more recent bind-9.9.2 and 9.8.4.
Tried to find in the CHANGES file when that happened, but didn't succeed.

Regards