Re: MX and A Records - ISP - SBS2K3

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From: Tony Su (anonymous_at_discussions.microsoft.com)
Date: 04/01/04 

Date: Thu, 1 Apr 2004 15:06:18 -0800

You can select "mail" instead of "www" but to a machine it
doesn't make a difference... Only human beings care, and
if only one record is created, I selected "www" because
human beings might use it to access a website.

Yes, you can also create two records, a "www" and
a "mail" for the same IP address (generally preferable to
ccreating a CNAME/Alias to eliminate a roundtrip lookup)
aand point your MX record at one of them (in that case, I
would point to "mail")

Tony Su

>-----Original Message-----
>'www' is a host name in the DNS zone ajaxconsulting.com,
and I'd be more
>likely to use 'mail' unless I actually was hosting www on
the sbs.
>
>MX records always point to host names (well, actually, A
records, but let's
>keep it simple) and are seperate entries to the A records.
>
>"Steve Ikard" <anonymous@discussions.microsoft.com> wrote
in message
>news:16e4a01c4178a$60ff0d30$a101280a@phx.gbl...
>> Thanks for the quick reply, Tony!
>> I just need to know what the "www" is in the A record.
Is
>> that literally "www" or do I
put "www.ajaxconsulting.com"
>> there?
>> And is the MX line a separate MX record or is it the
>> second line of the A record?
>>
>> Steve
>>
>> >-----Original Message-----
>> >3 tier? First time I've heard that terminology,
although
>> I
>> >think I understand what is meant...
>> >
>> >Let's make this simple...
>> >
>> >Create just one A record. That's enough if you're only
>> >using one IP address for web and email.
>> >
>> >A www aaa.bbb.ccc.ddd
>> >MX www.ajaxconsulting.com 10
>> >
>> >Now you have an A record such that anyone looking for
>> your
>> >OWA and maybe companyweb webpage will
>> >type "www.ajaxconsulting.com" will connect to
>> >aaa.bbb.ccc.ddd
>> >
>> >And, if anyone's mailserver tries to send mail to you,
it
>> >will do a DNS lookup and understand that your www
record
>> >is also where your mailserver is.
>> >
>> >Tony Su
>> >
>> >
>> >
>> >
>> >>-----Original Message-----
>> >>Per all the documentation I have read on Small
Business
>> >>Server 2003 (Premium) installation, I must get my ISP
to
>> >>create a "MX" and an "A" record. I am going round and
>> >>round with the ISP. I have a registered Internet
Domain
>> >>Name for my company (lets call it AJAX Consulting):
>> >>www.ajaxconsulting.com. For the "A" record, Brelsford
>> in
>> >>his book states that I should use the name I entered
>> when
>> >>I was defining the Web Server Certificate "Web Server
>> >>Name". In my case that would
>> >>be "server.ajaxconsulting.com" and give the ISP the IP
>> >>address of my "external" (Internet side) NIC. As for
>> >>the "MX" record, my ISP claims that it should be the
>> FQDN
>> >>of my Exchange server. Again, per Brelsford's book,
>> that
>> >>would be what I entered when asked for the "E-Mail
>> Domain
>> >>Name". That was "ajaxconsulting.com". But my ISP
>> >insists
>> >>that it should be a "three-tier" name
>> >>like "mailserver1.ajaxconsulting.com". But when I
look
>> >up
>> >>the Exchange FQDN via the Service Manager, it says it
>> >>is "ajaxconsulting.com". I can't find a three-tier
name
>> >>for my Exchange server. What don't I understand
>> >correctly
>> >>and what should I provide my ISP with a new SBS2K3
>> >>installation? Thanks!
>> >>
>> >>Steve Ikard
>> >>
>> >>.
>> >>
>> >.
>> >
>
>
>.
>

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