MX for mailhub and reverse pointer file
Kevin Darcy
kcd at daimlerchrysler.com
Fri Feb 10 03:11:11 UTC 2006
Harry Putnam wrote:
>Setup: Gentoo linux (kernel 2.6.15-r3)
> bind-9.3.2
> sendmail-8.13.4
>Using bind/named as simple authoritative home lan server
>
>I want to get a correct MX set for my local lan mailserver but using
>the Bind and DNS 4th ed I don't find examples that are really
>complete. All the index hits on MX still leave me wondering what if
>anything needs to go into the reverse pointer file for the zone.
>
>Currently I have this pair of zone files and below the log from
>starting named with those in place.
>
>zone.local.net0
>------- 8< snip --------
>$TTL 1D
>@ IN SOA reader.local.net0. hostmaster (
> 200405191 ; serial
> 8H ; refresh
> 4H ; retry
> 4W ; expire
> 1D ) ; minimum
>;[HP 02/09/06 19:25 ] define the authoritative name server
> IN NS reader
>; [HP 02/09/06 19:25 ] defind domain mail server with MX record &
>; matching A record
>; [HP 01/30/06 09:56 The 10 indicates priority [lower is higher]]
> IN MX 10 reader
>reader IN A 192.168.0.4
>
>; define domain functions with CNAMEs
>smtp IN CNAME reader
>www IN CNAME reader
>tic IN CNAME reader
>
>;;; From Bill Larson
>;;; 1. "@" as the origin for a zone
>;;; 2. Non-fully qualified names will be fully qualified with
>;;; the $ORIGIN
>;;; 3. When the left hand name isn't specified, it carries
>;;; over from the previous record
>
>localhost IN A 127.0.0.1
>;; local machines in alphabetical order
>ansil IN A 192.168.0.21
>bjp IN A 192.168.0.16
>fw IN A 192.168.0.20
>harvey IN A 192.168.0.22
>mob2 IN A 192.168.0.3
>wap IN A 192.168.0.50
>------- 8< snip --------
>
>revp.192.168.0 Do I need something in here regarding the MX besides a
> pointer to its A record?
>
No.
>
>Aside: Does the TTL need to be in the reverse file? Named complains
> about the SOA record not being at the top.
>
That complaint pertains to the 0.0.127.in-addr.arpa zone, not this one.
>
>------- 8< snip --------
>$TTL 1D
>@ IN SOA reader.local.net0. reader.reader.local.net0. (
> 200405190 ; serial
> 28800 ; refresh (8 hours)
> 14400 ; retry (4 hours)
> 2419200 ; expire (4 weeks)
> 86400 ; minimum (1 day)
> )
>; define the authoritative name server
> IN NS reader.local.net0.
>;;;Do I need something here like:
>;;; IN MX reader.local.net0
>
Do you expect folks to be sending mail to user at 0.168.192.in-addr.arpa?
- Kevin
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