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Old 11-08-2011, 10:36 AM   #16
Pete-L
LQ Newbie
 
Registered: Nov 2011
Posts: 13

Original Poster
Rep: Reputation: Disabled

Yea ns1/2.mydomain.co.uk points at a DNS Loadbalancer which is configured for subdom.mydomain.co.uk to return an A Record of 5.5.5.5

Oddly, I get different results depending on the online dig tool used.

Using http://networking.ringofsaturn.com/Tools/dig.php the results are -

dig subdom.mydomain.co.uk Line 1 looks to be correct here!
Code:
subdom.mydomain.co.uk.	10	IN	A	5.5.5.5
subdom.mydomain.co.uk.	85912	IN	NS	ns1.mydomain.co.uk.
ns1.mydomain.co.uk.	21112	IN	A	1.1.1.1
dig +trace subdom.mydomain.co.uk
Code:
; <<>> DiG 9.6.-ESV-R5 <<>> +trace subdom.mydomain.co.uk
;; global options: +cmd
.			354953	IN	NS	g.root-servers.net.
.			354953	IN	NS	k.root-servers.net.
.			354953	IN	NS	a.root-servers.net.
.			354953	IN	NS	f.root-servers.net.
.			354953	IN	NS	b.root-servers.net.
.			354953	IN	NS	c.root-servers.net.
.			354953	IN	NS	h.root-servers.net.
.			354953	IN	NS	m.root-servers.net.
.			354953	IN	NS	l.root-servers.net.
.			354953	IN	NS	j.root-servers.net.
.			354953	IN	NS	i.root-servers.net.
.			354953	IN	NS	e.root-servers.net.
.			354953	IN	NS	d.root-servers.net.
;; Received 512 bytes from 71.252.219.43#53(71.252.219.43) in 221 ms

uk.			172800	IN	NS	ns1.nic.uk.
uk.			172800	IN	NS	ns2.nic.uk.
uk.			172800	IN	NS	ns3.nic.uk.
uk.			172800	IN	NS	ns4.nic.uk.
uk.			172800	IN	NS	ns5.nic.uk.
uk.			172800	IN	NS	ns6.nic.uk.
uk.			172800	IN	NS	ns7.nic.uk.
uk.			172800	IN	NS	nsa.nic.uk.
uk.			172800	IN	NS	nsb.nic.uk.
uk.			172800	IN	NS	nsc.nic.uk.
uk.			172800	IN	NS	nsd.nic.uk.
;; Received 501 bytes from 128.63.2.53#53(128.63.2.53) in 1353 ms

mydomain.co.uk.	172800	IN	NS	ns2.provider.com.
mydomain.co.uk.	172800	IN	NS	ns1.provider.com.
mydomain.co.uk.	172800	IN	NS	ns6.provider.com.
mydomain.co.uk.	172800	IN	NS	ns5.provider.com.
;; Received 123 bytes from 156.154.102.3#53(156.154.102.3) in 74 ms

subdom.mydomain.co.uk.	21600	IN	SOA	ns1.provider.com. hostmaster.provider.com. 2011110808 108402 54201 758814 167748
;; Received 102 bytes from 199.7.69.253#53(199.7.69.253) in 7 ms
dig www.subdom.mydomain.co.uk - no such subdomain created (I am just trying to get an A Record for subdom.mydomain.co.uk)

When using http://www.digwebinterface.com the results are -

dig subdom.mydomain.co.uk

Code:
;; AUTHORITY SECTION:
subdom.mydomain.co.uk.	9324	IN	SOA	ns1.provider.com. hostmaster.provider.com. 2011110808 108402 54201 758814 167748
dig +trace subdom.mydomain.co.uk
Code:
; <<>> DiG 9.3.6-P1-RedHat-9.3.6-16.P1.el5 <<>> +trace subdom.mydomain.co.uk. @194.74.65.69
;; global options:  printcmd
.			262317	IN	NS	m.root-servers.net.
.			262317	IN	NS	a.root-servers.net.
.			262317	IN	NS	b.root-servers.net.
.			262317	IN	NS	c.root-servers.net.
.			262317	IN	NS	d.root-servers.net.
.			262317	IN	NS	e.root-servers.net.
.			262317	IN	NS	f.root-servers.net.
.			262317	IN	NS	g.root-servers.net.
.			262317	IN	NS	h.root-servers.net.
.			262317	IN	NS	i.root-servers.net.
.			262317	IN	NS	j.root-servers.net.
.			262317	IN	NS	k.root-servers.net.
.			262317	IN	NS	l.root-servers.net.
;; Received 512 bytes from 194.74.65.69#53(194.74.65.69) in 112 ms

uk.			172800	IN	NS	ns1.nic.uk.
uk.			172800	IN	NS	ns3.nic.uk.
uk.			172800	IN	NS	ns2.nic.uk.
uk.			172800	IN	NS	ns5.nic.uk.
uk.			172800	IN	NS	nsc.nic.uk.
uk.			172800	IN	NS	nsa.nic.uk.
uk.			172800	IN	NS	ns6.nic.uk.
uk.			172800	IN	NS	ns7.nic.uk.
uk.			172800	IN	NS	nsd.nic.uk.
uk.			172800	IN	NS	ns4.nic.uk.
uk.			172800	IN	NS	nsb.nic.uk.
;; Received 501 bytes from 202.12.27.33#53(m.root-servers.net) in 55 ms

mydomain.co.uk.	172800	IN	NS	ns1.provider.com.
mydomain.co.uk.	172800	IN	NS	ns5.provider.com.
mydomain.co.uk.	172800	IN	NS	ns6.provider.com.
mydomain.co.uk.	172800	IN	NS	ns2.provider.com.
;; Received 123 bytes from 195.66.240.130#53(ns1.nic.uk) in 97 ms

subdom.mydomain.co.uk.	21600	IN	SOA	ns1.provider.com. hostmaster.provider.com. 2011110808 108402 54201 758814 167748
;; Received 102 bytes from 204.74.108.253#53(ns1.provider.com) in 26 ms
dig www.subdom.mydomain.co.uk - no such subdomain created (I am just trying to get an A Record for subdom.mydomain.co.uk)
 
Old 11-08-2011, 03:14 PM   #17
bathory
Guru
 
Registered: Jun 2004
Location: Piraeus
Distribution: Slackware
Posts: 10,769

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You don't have an A RR for subdom.mydomain.co.uk, or at least the nameservers of your provider know nothing about it.
Tell your ISP to add the missing A RR in mydomain.co.uk zone file.

Quote:
subdom.mydomain.co.uk. 21600 IN SOA ns1.provider.com. hostmaster.provider.com. 2011110808 108402 54201 758814 167748
;; Received 102 bytes from 199.7.69.253#53(199.7.69.253) in 7 ms
Also you use ns1.provider.com as the authoritative dns for your subdomain, You should change it to ns1.mydomain.co.uk
 
Old 11-21-2011, 06:56 AM   #18
Pete-L
LQ Newbie
 
Registered: Nov 2011
Posts: 13

Original Poster
Rep: Reputation: Disabled
Hello,

Just a quick update as the problem has been resolved. There was a configuration issue at the ns1.provider.com that was stopping the delegation to the subdomain, once this was resolved it all started working.

Many Thanks,
Pete
 
  


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