[SOLVED] Help: Ubuntu Split DNS Config

[mconder]

I have tried and tried to get this working. The closest I get is incoming mail gets queued up on the server and never goes to the mailboxes.

This is currently what I get from nslookup...

root@ubuntu-srv:/var/cache/bind# nslookup ubuntu-srv.appconnex.com
Server: 192.168.1.50
Address: 192.168.1.50#53

*** Can't find ubuntu-srv.appconnex.com: No answer

Here's my named.conf.local file...

// We are the master server for ubuntu-srv.appconnex.com
zone "ubuntu-srv.appconnex.com" {
type master;
file "db.ubuntu-srv.appconnex.com";
};
//
Here's my db.ubuntu-srv.appconnex.com file...

;
; Addresses and other host information.
;
@ IN SOA ubuntu-srv.appconnex.com. hostmaster.ubuntu-srv.appconnex.com. (
10118 ; Serial
43200 ; Refresh
3600 ; Retry
3600000 ; Expire
2592000 ) ; Minimum
; Define the nameservers and the mail servers
IN NS 192.168.1.50 ; local ip
ubuntu-srv IN A 192.168.1.50 ; local ip
IN MX 10 ubuntu-srv.appconnex.com. ;MXrecord

Here's my resolv.conf file...

nameserver 192.168.1.50

Please help...what am I doing wrong here?

Thanks!

[mconder]

By the way...the domain I am trying to get email to in Zimbra is appconnex.com. External DNS appears to be working sense incoming mail comes to the queue.

[uxbod]

// We are the master server for ubuntu-srv.appconnex.com
zone "ubuntu-srv.appconnex.com" {
type master;
file "db.ubuntu-srv.appconnex.com";
};
//

You have defined your zone incorrectly as it should be

zone "appconnex.com" {
type master;
file "db.appconnex.com";
};

Your server ubuntu-srv resides within that domain so you do not describe your zone as the server name

[mconder]

ok...lookup now works on the domain, but what about the host?

root@ubuntu-srv:/home/mike# nslookup
> appconnex.com
Server: 192.168.1.50
Address: 192.168.1.50#53

Name: appconnex.com
Address: 192.168.1.50
> ubuntu-srv
Server: 192.168.1.50
Address: 192.168.1.50#53

** server can't find ubuntu-srv: NXDOMAIN
> ^[[A
Server: 192.168.1.50
Address: 192.168.1.50#53
: NXDOMAIN
> server can't find
> ubuntu-srv.appconnex.com
Server: 192.168.1.50
Address: 192.168.1.50#53

** server can't find ubuntu-srv.appconnex.com: NXDOMAIN

[uxbod]

Please post your zonefile and the section from named.conf.

[mconder]

/var/cache/bind/db.appconnex.com

;
; Addresses and other host information.
;
@ IN SOA ubuntu-srv.appconnex.com. hostmaster.ubuntu-srv.appconnex.com. (
10118 ; Serial
43200 ; Refresh
3600 ; Retry
3600000 ; Expire
2592000 ) ; Minimum
; Define the nameservers and the mail servers
IN NS 192.168.1.50 ; local ip
IN A 192.168.1.50 ; local ip
IN MX 10 ubuntu-srv.appconnex.com. ;MXrecord

/etc/bind/named.conf.local

// We are the master server for appconnex.com
zone "appconnex.com" {
type master;
file "db.appconnex.com";
};
//
// Do any local configuration here
//

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

[uxbod]

You need a 'A' record for your server so

ubuntu-srv IN A 192.168.1.50

and remember to update the serial number.

[mconder]

Like this?



;
; Addresses and other host information.
;
@ IN SOA ubuntu-srv.appconnex.com. hostmaster.ubuntu-srv.appconnex.com. (
10118 ; Serial
43200 ; Refresh
3600 ; Retry
3600000 ; Expire
2592000 ) ; Minimum
; Define the nameservers and the mail servers
IN NS 192.168.1.50 ; local ip
ubuntu-srv IN A 192.168.1.50 ; local ip
IN MX 10 ubuntu-srv.appconnex.com. ;MXrecord

[mconder]

This issue us resolved.

[mconder]

Actually, I am back to not solved...

root@mail:/home/mike# nslookup
> appconnex.com
Server: 192.168.1.50
Address: 192.168.1.50#53

*** Can't find appconnex.com: No answer
> mail.appconnex.com
Server: 192.168.1.50
Address: 192.168.1.50#53

Name: mail.appconnex.com
Address: 192.168.1.50
>

It's still not resolving my domain appconnex.com.

Here's is the current config:

/etc/bind/named.conf.local

zone "appconnex.com" {
type master;
file "appconnex.com.db";
};

/var/cache/bind/appconnex.com.db

@ IN SOA mail.appconnex.com. hostmaster.mail.appconnex.com. (
10118 ; Serial
43200 ; Refresh
3600 ; Retry
3600000 ; Expire
2592000 ) ; Minimum
;
; Define the nameservers and the mail servers
IN NS 192.168.1.50
mail IN A 192.168.1.50
IN MX 10 mail.appconnex.com.

root@mail:/var/cache/bind# cat /etc/hosts
127.0.0.1 localhost.localdomain localhost
192.168.1.50 mail.appconnex.com mail

# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts

root@mail:/var/cache/bind# cat /etc/resolv.conf
nameserver 192.168.1.50