Print Page - Stuck @ Professional - Reverse DNS for mail server.

Title: Stuck @ Professional - Reverse DNS for mail server.
Post by: jentegt on December 11, 2011, 06:38:51 AM

Hi Guy's,
I keep getting "Failed to get AAAA from MX or your DOMAIN" when I do the test =(.

I'm using Bind as my DNS server.

my added zone:

Code Select

zone "2.4.7.a.0.8.8.2.8.a.6.0.1.0.0.2.ip6.arpa" {
        type master;
        file "/etc/bind/2.4.0.0.0.0.0.0.0.0.0.0.0.0.0.0.7.7.0.a.0.8.8.2.8.a.6.0.1.0.0.2.ip6.arpa";

The zone file:

Code Select

$TTL 1;

@       IN      SOA     ns.jente.vlan77.be. root.jente.vlan77.be. (
        2011121101      ;serial
        300             ;refresh
        300             ;retry
        300             ;expire
        300)            ;negative cache TTL

@        IN     NS      ns.jente.vlan77.be.

;42      PTR    ns.jente.vlan77.be.
;62      PTR    ns.jente.vlan77.be.

1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.2.7.a.0.8.8.2.8.a.6.0.1.0.0.2.ip6.arpa.       IN       PTR     jente.vlan77.be.

My other 'normal' zone file:

Code Select

$TTL 1
@ IN SOA ns.jente.vlan77.be. root.jente.vlan77.be. (
        2011121101 ; Serial
        300
        300
        300
        1)
;
@               NS      ns
ns              A       193.191.187.42
ns              AAAA    2001:6a8:2880:a742::1
@               NS      ns.vlan77.be.

;vlan77.be.     A       193.191.187.62
@               A       193.191.187.42
                AAAA    2001:6a8:2880:a077::42

test            A       193.191.187.62
test            AAAA    2001:6a8:2880:a077::42

@                       MX 10   mx.jente.vlan77.be.
mx.jente.vlan77.be.     A       193.191.187.42
mx.jente.vlan77.be.     AAAA    2001:6a8:2880:a742::1

*               CNAME   jente.vlan77.be.

What am I doing wrong :/ ?

Title: Re: Stuck @ Professional - Reverse DNS for mail server.
Post by: cholzhauer on December 11, 2011, 06:47:12 AM

Everything looks OK on my end...how long have you waited?

I get responses when I query for AAAA records for your NS and MX, although neither of them have working reverse lookups

Title: Re: Stuck @ Professional - Reverse DNS for mail server.
Post by: jentegt on December 11, 2011, 07:11:11 AM

well, I've waited like 'Not long' :p.
How long do I need to wait, approximately?

EDIT:

Got it, changed the last line in my zone file to:

Code Select

1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0 IN PTR jente.vlan77.be.

Title: Re: Stuck @ Professional - Reverse DNS for mail server.
Post by: snarked on December 11, 2011, 12:20:20 PM

You're mixing FQDNs with labels within the zone for both your forward and reverse zones. The BCP RFCs state this is discouraged and often leads to errors. Clean up the mess you created and you might find that part of your problem goes away.

You also have a problem with your mail server name:

mx.jente.vlan77.be. (AAAA)=> 2001:6a8:2880:a742::1 (PTR)=> jente.vlan77.be.

You didn't get back what you started with. That's why you fail.

Also:
1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.2.7.a.0.8.8.2.8.a.6.0.1.0.0.2.ip6.arpa.
1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.4.7.a.0.8.8.2.8.a.6.0.1.0.0.2.ip6.arpa.

If you weren't insisting on FQDNs, you would not have made this mistake.

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General IPv6 Topics => IPv6 Basics & Questions & General Chatter => Topic started by: jentegt on December 11, 2011, 06:38:51 AM