Zone Record Order

[Josh Hyles]

Hey Kevin, thanks a bunch for the info. I'm still going to have to
look up RR's as I dont know what that refers to. Please excuse my
ignorance, as I am not that experienced with BIND/DNS.

I am aware that the transfer is not a "file" transfer, but when he
said something about RRSet *reordering* I thought maybe there was a
mechanism in place to order the records for you and thus I thought
maybe since my master records werent as "pretty" as the slave, then
maybe something was wrong... but i get it now.

as for the 15 minute TTL, I have that because I am moving mail servers
and dont have enough servers in place to do fail over. I plan on
switching them back to 1 day once everything calms down over here.

Josh

On 10/6/06, Kevin Darcy <kcd at daimlerchrysler.com> wrote:
> An RRset is a group of RRs all having the same owner name, class and
> type. example.com/IN/MX, for example, defines a unique RRset.
> example.com/IN, on the other hand, defines only a *name*, and there
> could be multiple RRsets owned by that name (A, MX, NS, SOA, etc.)
>
> I hope you understand that a zone transfer is not a *file* transfer, so
> the fact that the file format -- including the record order -- may look
> different between the master and slave is completely irrelevant, as long
> as the *data* (including the TTL values of the records) is the same.
>
> Also, I question why your mail-related records (MX record and associated
> A record) have a 15-minute TTL at all. Do you have some sort of failover
> mechanism in place and want to be able to switch those records quickly
> to point to some other mail server(s)? The proper way to do that is have
> multiple MX records at different preference values. Then the failover is
> automatic and you wouldn't have to thrash your DNS and everyone else's
> DNS with a 15-minute TTL value. Just a suggestion.
>
>
>                                  - Kevin
>
> Josh Hyles wrote:
> > I am not sure what RRSet is, but the slave server does seem to
> > re-order the record, howerver, the master which i edit, does not
> > change at all. is that still ok?
> >
> > On 10/6/06, Josh Hyles <josh.maillists at gmail.com> wrote:
> >
> >> Good point...
> >>
> >> One other question.. do I need the "IN" option when doing these? I'm
> >> not sure what it is for, but I've been able to get things working for
> >> the last years with no problem without it.
> >>
> >> Josh
> >>
> >> On 10/6/06, Chris Buxton <cbuxton at menandmice.com> wrote:
> >>
> >>> There's nothing wrong with putting the two records at the end - other
> >>> than having the SOA record first, the order of records in a zone is
> >>> usually unimportant. (If you disable RRSet reordering, then order of
> >>> records in an RRSet becomes important.)
> >>>
> >>> Is there a reason not to simply specify a TTL in the two records?
> >>> Like this:
> >>>
> >>> @       900     MX      5  mail.cvlsoft.net.
> >>> mail    900     A       12.45.64.7
> >>>
> >>> Chris Buxton
> >>> Men & Mice
> >>> Take control of your network
> >>>
> >>> On Oct 6, 2006, at 11:21 AM, Josh Hyles wrote:
> >>>
> >>>
> >>>> Sent this out as the wrong subject line, sorry.
> >>>>
> >>>> On 10/6/06, Josh Hyles <josh.maillists at gmail.com> wrote:
> >>>>
> >>>>> Here is my record....
> >>>>>
> >>>>> $TTL 86400      ; 1 day
> >>>>> @                       IN  SOA ns1.goatinatree.com.
> >>>>> root.cvlsoft.net. (
> >>>>>                                 2006100605   ; serial number
> >>>>>                                 3600         ; refresh
> >>>>>                                 7200         ; retry
> >>>>>                                 604800       ; expire
> >>>>>                                 86400      ) ; default TTL
> >>>>>
> >>>>> ;
> >>>>> ;  Zone NS records
> >>>>> ;
> >>>>>
> >>>>> @                       NS      ns1.goatinatree.com.
> >>>>> @                       NS      ns2.goatinatree.com.
> >>>>>
> >>>>> ;
> >>>>> ;  Zone records
> >>>>> ;
> >>>>>
> >>>>> @                       TXT     "v=spf1 a mx ip4:12.45.64.8 ~all"
> >>>>> @                       A       63.247.73.122
> >>>>> ftp                     A       63.247.73.122
> >>>>> www                     A       63.247.73.122
> >>>>> sqlsrv                  A       216.180.229.66
> >>>>> websrv                  A       216.180.229.67
> >>>>> $TTL 900        ; 15 minutes
> >>>>> @                       MX      5       mail.cvlsoft.net.
> >>>>> mail                    A       12.45.64.7
> >>>>>
> >>>>> #####################################################
> >>>>>
> >>>>>
> >>>>> I am writing today because I'm trying to see if there is anything
> >>>>> wrong with putting the MX record at the bottom like I did in order to
> >>>>> only have 1 section for 15 minute TTL.
> >>>>>
> >>>>> Any help would be much appreciated
> >>>>>
> >>>>> Josh
> >>>>>
> >>>>>
> >>>>
> >>>>
> >>>
> >
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