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Thread: DNS Error - none of the MX records resolve to this host

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    Join Date
    Jun 2011
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    Default DNS Error - none of the MX records resolve to this host

    Hey guys, so I'm having a bit of an issue ironing out this last DNS problem, I have been following the SplitDNS guide word for word but, when trying to install Zimbra it gives the DNS mismatch error and when I try to startup DNSmasq it shows the address already in use.

    # /etc/init.d/dnsmasq restart

    Starting dnsmasq:
    dnsmasq: failed to create listening socket: Address already in use
    [FAILED]
    I am using CentOS 5.7 x32 at the moment doing some testing. ZCS 7.1.4

    Test domain -lulzy.ath.cx

    Dnsmasq config

    Code:
    conf-dir=/etc/dnsmasq.d
    server=8.8.8.8
    server=208.67.222.222
    domain=lulzy.ath.cx
    mx-host=lulzy.ath.cx,mail.lulzy.ath.cx,5
    listen-address=127.0.0.1
    Here is my hosts file

    # cat /etc/hosts
    # Do not remove the following line, or various programs
    # that require network functionality will fail.
    127.0.0.1 localhost.localdomain localhost
    ::1 localhost6.localdomain6 localhost6
    192.168.0.111 mail.lulzy.ath.cx mail
    My resolv.conf

    # cat /etc/resolv.conf
    ; generated by /sbin/dhclient-script
    search lulzy.ath.cx
    nameserver 127.0.0.1
    My named.conf

    // Default named.conf generated by install of bind-9.2.4-2
    options {
    directory "/var/named";
    dump-file "/var/named/data/cache_dump.db";
    statistics-file "/var/named/data/named_stats.txt";
    forwarders { 8.8.8.8 ; };
    };
    include "/etc/rndc.key";
    // We are the master server for server.example.com
    zone "mail.lulzy.ath.cx" {
    type master;
    file "/var/named/db.mail.lulzy.ath.cx";
    };
    My zone file

    ;
    ; Addresses and other host information.
    ;
    @ IN SOA mail.lulzy.ath.cx. hostmaster.mail.lulzy.ath.cx. (
    10118 ; Serial
    43200 ; Refresh
    3600 ; Retry
    3600000 ; Expire
    2592000 ) ; Minimum
    ; Define the nameservers and the mail servers
    IN NS 192.168.0.111
    mail.lulzy.ath.cx. IN MX 10 mail.lulzy.ath.cx.
    mail.lulzy.ath.cx. IN A 192.168.0.111
    Ignore the formatting errors, its 5:30am, I'm too tired to fix it right now =(

    Where am I going wrong?
    Last edited by Eclipse; 02-08-2012 at 04:35 AM.

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