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Thread: Split DNS setup problems.

  1. #1
    Join Date
    Nov 2011
    Rep Power

    Default Split DNS setup problems.

    I'm following the guide (Split DNS - Zimbra :: Wiki) and got to the part where I need to edit the /etc/named.conf file. I've edited the named.conf file to look like this:

    Options {
    directory "/var/named";
    dump-file "/var/named/data/cache_dump.db";
    statistics-file "/var/named/data/named_stats.txt";
    forwarders { 64.0.x.x; };
    include "/etc/rndc.key";
    zone "" {
    type master;
    file "";

    Here's my file:

    ; Addresses and other host information.
    @ IN SOA (
    10118 ; Serial
    43200 ; Refresh
    3600 ; Retry
    3600000 ; Expire
    2592000 ; Minimum
    ); Define the nameservers and the mail servers
    IN NS 10.10.x.x
    mail IN A 10.10.x.x
    IN MX 10

    Changed the /etc/resolv.conf to reflect my Zimbra server as the primary DNS and also set the search path to Zimbra server. When I run /etc/init.d/named restart I get:

    Stopping named: [ OK ]
    Starting named:
    Error in named configuration: no TTL specified; using SOA MINTTL instead NS record '10.10.x.x' appears to be an address
    zone NS '' has no address records (A or AAAA)
    zone not loaded due to errors.
    _default/ bad zone

    I'm a newbie to this so please point me in the right direction. Thank you.

  2. #2
    Join Date
    Oct 2009
    Rep Power


    The 3 files you need to modify are shown below. I run Ubuntu.
    I read that whatever your linux flavor is, it's the same files.
    these files are very sensitive so don't type by hand unless you trust yourself. If you follow the guide and look at my sample files you should be ok. file:
    ;BIND data file for
    $TTL 604800
    @ IN SOA (
    090628 ; Serial
    604800 ; Refresh
    86400 ; Retry
    2419200 ; Expire
    604800 ) ; Negative Cache TTL
    @ IN NS mail
    IN MX 10 mail
    IN A
    mail IN A

    named.conf.local file:
    // Do any local configuration here
    zone "" {
    type master;
    file "/etc/bind/";

    // Consider adding the 1918 zones here, if they are not used in your
    // organization
    //include "/etc/bind/zones.rfc1918";

    named.conf.options file:
    options {
    directory "/var/cache/bind";
    query-source address * port 53;

    // If there is a firewall between you and nameservers you want
    // to talk to, you may need to fix the firewall to allow multiple
    // ports to talk. See US-CERT Vulnerability Note VU#800113 - Multiple DNS implementations vulnerable to cache poisoning

    // If your ISP provided one or more IP addresses for stable
    // nameservers, you probably want to use them as forwarders.
    // Uncomment the following block, and insert the addresses replacing
    // the all-0's placeholder.

    forwarders {
    xxx.166.8.54; yyy.118.1.28;

    auth-nxdomain no; # conform to RFC1035
    listen-on-v6 { any; };

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