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  • Reverse DNS error

    Hello.
    I have two name servers on two separate networks. Primary NS is at 10.0.0.81 and Secondary is at 192.168.0.129

    Test for NS1 through DNS Stuff:

    How I am searching:
    Asking c.root-servers.net for 81.0.0.10.in-addr.arpa PTR record:
    c.root-servers.net says to go to dill.arin.net. (zone: 10.in-addr.arpa.)
    Asking dill.arin.net. for 81.0.0.10.in-addr.arpa PTR record:
    dill.arin.net [192.35.51.32] says to go to NS2.PBI.NET. (zone: 0.10.in-addr.arpa.)
    Asking NS2.PBI.NET. for 81.0.0.10.in-addr.arpa PTR record: Got CNAME referral to 81.80.0.0.10.in-addr.arpa. at server ns1.mydomain.net. (zone 80.0.0.10.in-addr.arpa.) [from 206.13.29.11]
    Asking c.root-servers.net for 81.80.0.0.10.in-addr.arpa. PTR record:
    c.root-servers.net [192.33.4.12] says to go to indigo.ARIN.NET. (zone: 10.in-addr.arpa.)
    Asking indigo.ARIN.NET. for 81.80.0.0.10.in-addr.arpa. PTR record:
    indigo.arin.net [192.31.80.32] says to go to NS2.PBI.NET. (zone: 0.10.in-addr.arpa.)
    Asking NS2.PBI.NET. for 81.80.0.0.10.in-addr.arpa. PTR record:
    ns2.pbi.net [206.13.29.11] says to go to ns2.mydomain.net. (zone: 80.0.0.10.in-addr.arpa.)
    Asking ns2.mydomain.net. for 81.80.0.0.10.in-addr.arpa. PTR record: Reports that no PTR records exist [from 192.168.0.129].

    Answer:
    No PTR records exist for 10.0.0.81. [Neg TTL=3600 seconds]

    Details:
    ns2.mydomain.net. (an authoritative nameserver for 0.0.10.in-addr.arpa., which is in charge of the reverse DNS for 10.0.0.81)
    says that there are no PTR records for 10.0.0.81.

    ================================================== ========

    Terst for NS2 through DNS Stuff:

    How I am searching:
    Asking b.root-servers.net for 129.0.168.192.in-addr.arpa PTR record:
    b.root-servers.net says to go to epazote.arin.net. (zone: 192.in-addr.arpa.)
    Asking epazote.arin.net. for 129.0.168.192.in-addr.arpa PTR record:
    epazote.arin.net [192.41.162.32] says to go to ns1.pbi.net. (zone: 168.192.in-addr.arpa.)
    Asking ns1.pbi.net. for 129.0.168.192.in-addr.arpa PTR record: Got CNAME referral to 129.128.0.168.192.in-addr.arpa. at server ns1.mydomain.net. (zone 128.0.168.192.in-addr.arpa.) [from 206.13.28.11]
    Asking d.root-servers.net for 129.128.0.168.192.in-addr.arpa. PTR record:
    d.root-servers.net [128.8.10.90] says to go to henna.ARIN.NET. (zone: 192.in-addr.arpa.)
    Asking henna.ARIN.NET. for 129.128.0.168.192.in-addr.arpa. PTR record:
    henna.arin.net [192.26.92.32] says to go to ns1.pbi.net. (zone: 168.192.in-addr.arpa.)
    Asking ns1.pbi.net. for 129.128.0.168.192.in-addr.arpa. PTR record:
    ns1.pbi.net [206.13.28.11] says to go to ns2.mydomain.net. (zone: 128.0.168.192.in-addr.arpa.)
    Asking ns2.mydomain.net. for 129.128.0.168.192.in-addr.arpa. PTR record: Reports that no PTR records exist [from 192.168.0.129].

    Answer:
    No PTR records exist for 192.168.0.129. [Neg TTL=3600 seconds]

    Details:
    ns2.mydomain.net. (an authoritative nameserver for 0.168.192.in-addr.arpa., which is in charge of the reverse DNS for 192.168.0.129)
    says that there are no PTR records for 192.168.0.129.

    But I _do_ have PTRs in the reverse zones?

    Help!

    What am I missing? Yet again !

    Thanks.

  • #2
    Re: Reverse DNS error

    And this is connected to SBS how?
    TIA

    Steven Teiger [SBS-MVP(2003-2009)]
    http://www.wintra.co.il/
    sigpic
    Iím honoured to have been selected for the SMB 150 list for 2013. This is the third time in succession (no logo available for 2011) that I have been honoured with this award.

    We donít stop playing because we grow old, we grow old because we stop playing.

    Comment


    • #3
      Re: Reverse DNS error

      On each end, I have a DSL modem with 5 static IPs each. Both servers are always on, and I'm not using DHCP or VPN. I have PTRs for each server on it's own network in it's own .arpa zone. But if I understand the test results correctly, I think they are expecting NS2 to know the reverse IP for NS1. _IF_ I am correct, how can I add a reverse record for 10.0.0.1 in the 0.168.192.in-addr.arpa file (an vice-versa)? Am I reading/understanding this correctly? If I run a test on DNS Stuff, the servers respond correctly. Only that sometimes my mail gets rejected because I don't have reverse DNS (?!) records for my mail server.

      But no, there's no router. Just a DSL modem with the static IPs.

      Thanks.

      Comment

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