DNS problems

May 18, 2010 at 04:21:25
Specs: Windows XP
I changed the DNS settings of one of my websites a few weeks back and ever since then one day I'll be able to get the website on the new server and then the next it's back to the old version on the other server.

I've flushed the DNS and it works for the time being, but goes back the next time. the router has been switched off over night to help it re-create.

Is this a problem with my IPS, my PC or other? Is there anything I can do more? Of course other users may have this problem if they are using the same IPS me...??

Thanks Ian

Sanlucar rentals


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#1
May 18, 2010 at 06:49:29
did you notify your isp of this change?
what ip address are both servers pointing to for dns?

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#2
May 18, 2010 at 10:01:46
Are the IP addresses for the old and for the new web server private or public addresses?

The original poster should always write the last response !!!
Let us know, if the problem is solved !!!


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#3
May 19, 2010 at 07:45:58
The old DNS is German from a german hosting company. The new DNS if from my host of many years in Canada.

My ip addreses are Spanish based in line with my ISP. I've tested on siteuptime and it's fine. Today the site is fine on my pc, but tomorrow will revert back, this has been going on for 2 weeks now.

Sanlucar rentals


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Related Solutions

#4
May 19, 2010 at 07:59:42
If you don't answer the specific questions we can't help you. You are speaking in generalizations. As such, you convey no usable information.

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#5
May 19, 2010 at 13:32:55
did you notify your isp of this change?
No, normally an ISP will update theuir DNS records within about 72 hours, so you may have problems during that period. An isp is not interested in each user contacting it when ever theu change host.

what ip address are both servers pointing to for dns?
This is the correct DNS:
NS1.VARIALHOSTING.COM
NS2.VARIALHOSTING.COM
NS3.VARIALHOSTING.COM
NS4.VARIALHOSTING.COM

the old is probably something like:
ns1.awardspace.com
ns2.awardspace.com
ns3.awardspace.com
ns4.awardspace.com

When I ping at the cmd promt i currently get
82.197.131.52
When i visit teh website I also get the old server data.

The Ip address for the correct server is:
72.55.178.69

Sanlucar rentals


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#6
May 19, 2010 at 13:47:51
For your info the domain is:
sanlucardebarramedagolf.com

Sanlucar rentals


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#7
May 19, 2010 at 14:14:34
As you can see, the DNS A record points to the ip address 82.197.131.52, which seems to be your mail server.

dig @ns1.awardspace.com sanlucardebarramedagolf.com any

; <<>> DiG 9.5.0-P2 <<>> @ns1.awardspace.com sanlucardebarramedagolf.com any
; (1 server found)
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34169
;; flags: qr aa rd; QUERY: 1, ANSWER: 7, AUTHORITY: 0, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;sanlucardebarramedagolf.com. IN ANY

;; ANSWER SECTION:
sanlucardebarramedagolf.com. 3600 IN NS ns3.awardspace.com.
sanlucardebarramedagolf.com. 3600 IN SOA ns1.awardspace.com. hostmaster.awardspace.com. 2007041501 10800 3600 1209600 7200
sanlucardebarramedagolf.com. 3600 IN NS ns2.awardspace.com.
sanlucardebarramedagolf.com. 3600 IN A 82.197.131.52
sanlucardebarramedagolf.com. 3600 IN NS ns4.awardspace.com.
sanlucardebarramedagolf.com. 3600 IN MX 10 mail.sanlucardebarramedagolf.com.
sanlucardebarramedagolf.com. 3600 IN NS ns1.awardspace.com.

;; ADDITIONAL SECTION:
mail.sanlucardebarramedagolf.com. 3600 IN A 82.197.131.52

;; Query time: 257 msec
;; SERVER: 82.197.130.233#53(82.197.130.233)
;; WHEN: Wed May 19 23:10:40 2010
;; MSG SIZE rcvd: 246

The original poster should always write the last response !!!
Let us know, if the problem is solved !!!


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#8
May 20, 2010 at 00:29:14
Ok, so you are seeing the same info as me. SO how and why the hell is it not picking up the valid DNS:

This is the correct DNS:
NS1.VARIALHOSTING.COM
etc.....?

Today I'm now getting the correct website, but later who knows...?

Ian

Sanlucar rentals


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#9
May 20, 2010 at 01:21:18
Weird...this one has me scratching my head too...

I think the VARIALHOSTING host is misconfigured, it doens't list itself as the SOA (source of authority):

# dig @NS1.VARIALHOSTING.COM sanlucardebarramedagolf.com
; QUESTION SECTION:
;sanlucardebarramedagolf.com.   IN      A

;; ANSWER SECTION:
sanlucardebarramedagolf.com. 14400 IN   A       72.55.178.69

;; AUTHORITY SECTION:
sanlucardebarramedagolf.com. 86400 IN   NS      ns4.awardspace.com.
sanlucardebarramedagolf.com. 86400 IN   NS      ns1.awardspace.com.
sanlucardebarramedagolf.com. 86400 IN   NS      ns2.awardspace.com.
sanlucardebarramedagolf.com. 86400 IN   NS      ns3.awardspace.com.

So...NS1.VARIALHOSTING.COM returns an Address record, then says the Authorative is awardspace.com, which has the old address...

Me thinks:
-You clear DNS cache
-NS1.VARIALHOSTING.COM returns correct A, A and SOA are cached locally
-4 hours later, cache expires, A removed
-Client now re-requets A from the cached SOA (which is awardspace)
-Awardspace returns the old address
-SOA is cached as Awardspace, so old address will continue to be returned until the SOA cache is removed & then we start over again...

...weird though. If NS1.VARIALHOSTING.COM isn't the SOA, it shouldn't return an address record (because it's not the authority, or at least doesn't think it is...)

I'd double check the DNS setup on VARIALHOSTING.com & verify you've transfered the zone/soa to VARIALHOSTING.COM & it's the master server.

Also, delete the A / SOA records from the old host (awardspace.com)


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#10
May 20, 2010 at 02:33:41
I've sent your comment to my host for their opinion. Yes it is strange, can you confirm your ISP, just so we are not working from the same ISP which may be the problem.

I'm on orange.es network in Spain.

Thanks Ian

Sanlucar rentals


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#11
May 20, 2010 at 05:33:02
I am on versatel.de germany.
So it's quite different.

The original poster should always write the last response !!!
Let us know, if the problem is solved !!!


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#12
May 20, 2010 at 07:54:47
Thanks Paul for all your help. I'll keep you updated once they reply. I was thinking of changing the dns to the old name of my current host, as all my other sites have this and have no problems, but wouldn't mind getting to the bottom of this one first.

Ian

Sanlucar rentals


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#13
May 20, 2010 at 08:10:34
I've just done an online test, could this be the fault:

expire
3600000
41d 16h
time after which the zone is discarded when the secodary server is unable to contact primary name server to check new zone (seconds)

This is for:
SOA record (ns1.varialhosting.com)

This is when i run a test for my domain name

Sanlucar rentals


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#14
May 20, 2010 at 10:18:23
Have you checked the DNS configuration and whether SOA is set correctly to ns1.varialhosting.com.
Because even if you do a dig @NS1.VARIALHOSTING.COM sanlucardebarramedagolf.com any
you get back:
sanlucardebarramedagolf.com. 86400 IN SOA ns1.awardspace.com. 2010042702 86400 7200 3600000 86400

So check the zone file.

The original poster should always write the last response !!!
Let us know, if the problem is solved !!!


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#15
May 20, 2010 at 11:06:08
Hi paul

I'm not sure what zone file you mean to check???? Where would i find this? My dns is set correct on Godaddy, see
directwebsitehosting.com/images/1.jpg

Also can you do me a favour and edit you last msg to remove .org.uk as it is an email. Thanks Ian

Sanlucar rentals


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#16
May 20, 2010 at 12:46:47
Why don't you just use GoDaddy's name server?? It would simplify the config...

Yes, the GoDaddy setup looks right, but the varialhosting config is not.

But either way, using GoDaddy's name servers would be much easier:
-Set the nameservers back to the GoDaddy defaults. Should be something like: ns<number>.domaincontrol.com.

Once the nameservers are back to Godaddy:
-Go to 'Total DNS Control'
-Edit the @ address, and anything else that lists an IP in there
-Specify your new server IP

You should also disable DNS on varialhosting & the old server. But doing the above should move SOA back to GoDaddy & it will act as your NS - should fix it.

Here's some screenshots, the godaddy admin interface is a mess -
http://www.compender.com/2007/12/fi...


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#17
May 22, 2010 at 09:20:41
Hi Paul

I've decided to change the dns to another setting for the same server, which works for all my other websites with the same host. So I'll let you know if all is a-ok in the next 72 hours.

Thanks for all your help.

ian

Sanlucar rentals


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#18
June 13, 2010 at 02:54:51
All sorted now Paul.

Yesterday I had a look on my reseller package and it had a edit dns data. Low and behold the data was there and now I've changed it, so all is (shlould) be fine.

thanks for your time.

Cheers Ian

Sanlucar rentals


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