OpenDNS shows a website as not existing but it does!

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danrimer

A friend of mine owns www.sarumpr.com. 

She recently had trouble where her domain expired. OpenDNS still shows the domain as not valid, but if I change my DNS server to google's (8.8.8.8) then I can resolve it fine.

I have tried the "CacheCheck" function on your site and that shows the correct IP address! (With the exception of the Polish server showing "no a-record").

Can you explain what is happening? I don't want to use a different provider (such as google) since i like the security that OpenDNS gives me.

 

 

thanks

 

 

dan

 

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    rotblitz

    No, I do not have an explanation. I'm just an OpenDNS user. What does these commands return?

    nslookup  www.sarumpr.com.

    nslookup  -type=txt  which.opendns.com.

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    danrimer

    thanks for the reply...

     

    nslookup www.sarumpr.com:

    Server: dc01.sunrize.local
    Address: 192.168.100.230

    Non-authoritative answer:
    Name: www.sarumpr.com
    Address: 67.215.65.132


    nslookup -type=txt which.opendns.com
    Server: dc01.sunrize.local
    Address: 192.168.100.230

    Non-authoritative answer:
    which.opendns.com text =

    "5.lon"

     

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    rotblitz

    Indeed, this OpenDNS London/UK location shows www.sarumpr.com as not existent. This 67.215.65.132 is hit-nxdomain.opendns.com.

    The reason is an error at the domain's DNS hosting provider system. The zone sarumpr.com has four nameservers:
     ns4.ncompass-dns.co.uk
     ns2.ncompass-dns.co.uk
     ns1.ncompass-dns.co.uk
     ns3.ncompass-dns.co.uk

    Both, ns2.ncompass-dns.co.uk and ns4.ncompass-dns.co.uk do not respond to any DNS queries. :(
    Only ns1.ncompass-dns.co.uk and  ns3.ncompass-dns.co.uk respond.

    So, this problem is not really related to OpenDNS. It is mandatory that all nameservers respond to queries for the zones they are in charge for.

    If the domain owner can maintain the nameserver entries (glue records) for her domain, she may remove the non-responsive nameservers from the list as a first measure. Then she is to contact the DNS hosting provider to get this repaired, so that she can add the two nameservers again.

    Another problem with her DNS configuration is that the @ record doesn't have an IP address assigned, i.e. is not an A record. Therefore mail to her domain's e-mail addresses may not function or may be impacted although there's an MX record.

    There may be more problems, but I leave this with the domain owner.

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    rotblitz

    Ah, I forgot. There's a temporary workaround which works only for people doing this on their computer. You can add the following entry to the hosts file:

    89.238.179.3  sarumpr.com  www.sarumpr.com

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    Brian Hartvigsen

    Rotblitz is correct.  Part of the issue is simply that 2 of the 4 DNS servers that we should be able to contact do not appear to respond to DNS queries.  See this report from intodns.com.

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    danrimer

    thanks all for your help.

    all seems to have updated now and I've had the site admin update the items that rotblitz pointed out to me.

     

    anyway, problem solved! thanks again!

     

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