On 09/19/2012 11:36 AM, Ralf Hildebrandt wrote:
> I'm trying to debug a DNS issue:
> 
> # host www.pimda.eu
> www.pimda.eu has address 88.208.252.197
> Host www.pimda.eu not found: 3(NXDOMAIN)
> Host www.pimda.eu not found: 3(NXDOMAIN)
> 
> Where does the NXDOMAIN come from?
> 
> # host -t a www.pimda.eu
> www.pimda.eu has address 88.208.252.197
> 
> # host -t aaaa www.pimda.eu
> Host www.pimda.eu not found: 3(NXDOMAIN)
> 
> # host -t mx www.pimda.eu
> Host www.pimda.eu not found: 3(NXDOMAIN)
> 
> According to the docs, host "By default, it looks for A, AAAA, and MX
> records". But why am I getting three results? Usually I'm only getting
> ONE!
> 

% WHOIS pidma
Domain: pidma
Status: AVAILABLE

According to EURid (.eu domain registry) this domain is free to
registration. Looks like one of DNS servers (authoritative) which is
responding to you, has this domain's DNS zone configured.

Ordinary when domain begin to exist after registration it's DNS zone is
delegated to DNS servers pointed by entity who registered domain
(registrant). If you will ask EURid's authoritative DNS servers:

root@aethyr:~# dig NS pidma.eu @l.nic.eu

; <<>> DiG 9.8.1-P1 <<>> NS pidma.eu @l.nic.eu
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 14893
;; flags: qr aa rd; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;pidma.eu.                      IN      NS

;; AUTHORITY SECTION:
eu.                     600     IN      SOA     a.nic.eu. tech.eurid.eu. 
1005569489 3600 1800 3600000 600

;; Query time: 95 msec
;; SERVER: 195.66.241.178#53(195.66.241.178)
;; WHEN: Wed Sep 19 11:50:30 2012
;; MSG SIZE  rcvd: 79

They'll tell you they know nothing about such delegation or domain.

To conclude: this domain was isn't registered yet but was probably
preconfigured on some authoritative DNS server(s).

-- 
Regards,
Milo

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