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Thread: ubuntu 12.4 bind9 dns reverse look up not working

  1. #1
    Join Date
    Apr 2013
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    ubuntu 12.4 bind9 dns reverse look up not working

    When I test my reverse zone from local machine by host ip, it says it is ok. 1.2.3.4.in-addr.arpa domain name pointer host.domain.co. however when i use tools like mxtoolbox or dnsstuff i get these errors
    SMTP Reverse DNS Mismatch .
    this is my config in name.config
    zone "domain.co" {
    type master;
    file "/etc/bind/db.domain.co";
    };

    zone "3.2.1.in-addr.arpa" {
    type master;
    file "/etc/bind/zones/rev.3.2.1.in-addr.arpa";
    };

    this is the main zone

    domain.co. IN SOA lnxhost.domain.co. root.domain.co. (
    2008080906 ; serial
    8H ; refresh
    4H ; retry
    4W ; expire
    1D ; minimum
    )

    domain.co. IN NS lnxhost.domain.co.
    domain.co. IN MX 10 lnxhost.domain.co.

    $ORIGIN domain.co.
    localhost IN A 127.0.0.1

    ; Set the hostnames in alphabetical order
    lnxhost IN A 1.2.3.4
    domain.co. IN TXT "v=spf1 a -all"

    this is the reverse entry

    ; IP Address-to-Host DNS Pointers for the 192.168.0 subnet
    @ IN SOA lnxhost.domain.co. root.domain.co. (
    2008080906 ; serial
    8H ; refresh
    4H ; retry
    4W ; expire
    1D ; minimum
    )

    3.2.1.in-addr.arpa. IN NS lnxhost.domain.co.

    233 IN PTR lnxhost.domain.co.

    syslogs have these

    Apr 1 13:19:01 lnxagelity named[1009]: zone 0.in-addr.arpa/IN: loaded serial 1
    Apr 1 13:19:01 lnxagelity named[1009]: zone 127.in-addr.arpa/IN: loaded serial 1
    Apr 1 13:19:01 lnxagelity named[1009]: /etc/bind/zones/rev.51.135.206.in-addr.arpa:2: no TTL specified; using SOA MINTTL instead
    Apr 1 13:19:01 lnxagelity named[1009]: zone 1.2.3.in-addr.arpa/IN: loaded serial 2008080906
    Apr 1 13:19:01 lnxagelity named[1009]: zone 255.in-addr.arpa/IN: loaded serial 1
    Apr 1 13:19:01 lnxagelity named[1009]: zone domain.co/IN: loaded serial 2008080906
    Apr 1 13:19:01 lnxagelity named[1009]: zone localhost/IN: loaded serial 2
    Apr 1 13:19:01 lnxagelity named[1009]: managed-keys-zone ./IN: loaded serial 5
    Apr 1 13:19:01 lnxagelity named[1009]: running

    Why tools like mxtoolbox. dnsstuff, fail to do the reverse look up?

    Any help would be appreciated. Just for the record, I have been researching this for about a week. Thanks
    Last edited by freddylaserna; April 1st, 2013 at 08:12 PM.

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