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Special Forums IP Networking DNS and Authoritative Servers Post 302877191 by Lost in Cyberia on Thursday 28th of November 2013 08:28:29 PM
Old 11-28-2013
DNS and Authoritative Servers

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:

Code:
;; QUESTION SECTION:
;cnn.com.            IN    A

;; ANSWER SECTION:
cnn.com.        300    IN    A    157.166.226.25
cnn.com.        300    IN    A    157.166.226.26


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
 

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ldns-walk(1)						      General Commands Manual						      ldns-walk(1)

NAME
ldns-walk - Retrieve the contents of a DNSSEC signed zone SYNOPSIS
ldns-walk [ OPTION ] ZONE DESCRIPTION
ldns-walk is used to retrieve the contents of a DNSSEC signed zone. It does this through NSEC-walking (following the chain of NSEC records) and 'guessing' the next non-existent owner name for each NSEC. Note that it might get stuck on some wildcard records when used through a caching forwarder. This problem can be circumvented by querying the authoritative nameserver directly (with the @ argument). Of course the nameserver that is used must be DNSSEC-aware. OPTIONS
-f Do a 'full' zone walk; by default, ldns-walk will only show the names, and types present at those names. If this option is given, all resource records will be printed. -s name Start the walk with this owner name. Useful when continuing the walk for a large zone. @ nameserver Send the queries to this nameserver. BUGS
The full zone walk function is not complete yet, it does not correctly print delegation records AUTHOR
Written by Jelte Jansen as an example for ldns usage. REPORTING BUGS
Report bugs to <ldns-team@nlnetlabs.nl>. COPYRIGHT
Copyright (C) 2005 NLnet Labs. This is free software. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PUR- POSE. 21 Nov 2005 ldns-walk(1)
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