Hey everyone, I've noticed that when I do a dig command, I don't get any authoritative records back. For example a dig to cnn.com just yields:
At first I thought it was because my caching server already had it, but I tried a multitude of sites, and none return any authoritative records. How is this?
Even with the +authority switch it doesn't return anything. Is it possible the ISP can block this ? That was my first thought, or is there something else at play?
Last edited by Scott; 11-29-2013 at 05:39 PM..
Reason: Code tags
I recall seeing all sorts of records using nslookup, especially with debug 2. You have to do query type SOA for start of authority. (You get details on your default or specified DNS server, too, first.)
Other nslookup versions use '-qt' for '-query'.
So how does one know they contact a recursive server? and how would you purposefully contact one instead of a non-recursive dns server?
Is it luck of the draw? because you did exactly the same command as I did, but got the dns results back with the authority..something i've tried multiple times, but just end up getting the basic return
Since a few weeks i use Ubuntu 16 on my laptop:
# uname -a
Linux xxxx 4.8.0-52-generic #55~16.04.1-Ubuntu SMP Fri Apr 28 14:36:29 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
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