[Fwd: MX Records Change]

[Eric Leslie]

Bob:
Basically, the way that it was *supposed* to work, in my mind anyway, was
this way. The connection changes over, and media.metzgers.com disappears and
is replaced by corp.metzgers.com. They are the same machine (our ISDN
router) which uses NAT to translate the request for ports to the mail
server. Then, when mail is undeliverable to media.metzgers.com, it
automatically makes the connection to corp.metzgers.com.

I guess what I am trying to do is minimize down time since I couldn't
forcast when the dns change would occur, since I don't control my dns
servers.

Eric

-----Original Message-----
From: cochranb at corp.metzgers.com [mailto:cochranb at corp.metzgers.com]On
Behalf Of Robert L. Cochran Jr.
Sent: Sunday, January 07, 2001 11:57 PM
To: bind-users at isc.org; eric.leslie at metzgers.com
Subject: [Fwd: MX Records Change]


Eric,

I just tried pinging media.metzgers.com. (206.165.56.209) and got a good
response to that, no packet loss. Then I tried pinging
corp.metzgers.com.(208.10.17.62) and got 100% packet loss. Which IP
address represents your new one? So to correct myself a little, I think
all you need to do is to correct the dns record for media.metzgers.com.
to contain the new IP address. It could well be the complete answer is
to change that one IP address and drop all further references to
corp.metzgers.com. in your MX records because you probably do not have a
host called corp.metzgers.com.

Again, I am inexperienced with DNS, so others can correct me.

--
Have a nice day!
Bob Cochran
mailto:cochranb at lingpgmr.com or mailto:cochranb at clark.net



"Robert L. Cochran Jr." wrote:
>
> Eric,
>
> I'm puzzled. Why didn't you just change the nameserver IP address for
> media.metzgers.com to 208.10.17.62 and leave everything else alone? I
> think that is all you really had to do, just get in contact with your
> nameserver admin and have that person change the IP address for
> media.metgers.com and you are done.
>
> I'm inexperienced with DNS so wiser souls can correct me if need be.
>
> The host names
>
> media.metzgers.com
> corp.metzgers.com
>
> give the impression that 2 different host *machines*, one named
> media.metzgers.com and the other named corp.metzgers.com, are being used
> as mail servers in your shop. You probably have a machine set up with
> the name media.metzgers.com but do you have one set up as
> corp.metzgers.com and configured as a mail server? I am guessing no
> since your concern is really just to change IP addresses (since your old
> one is gone), not to configure an additional mail server for your
> company.
>
> --
> Have a nice day!
> Bob Cochran
> mailto:cochranb at lingpgmr.com or mailto:cochranb at clark.net
>
> Eric Leslie wrote:
> >
> > Hello All:
> > The company that I work for was informed that our ISDN connection will
be
> > shut down, so we had to find a new provider. We host our own mail
server,
> > and have the MX records to reflect this. Once I found out the new static
IP
> > for the new connection, I requested a change to our MX records to
reflect
> > the new connection. Below, find the MX settings:
> >
> > Non-authoritative answer:
> > metzgers.com    preference = 10, mail exchanger = media.metzgers.com
> > metzgers.com    preference = 0, mail exchanger = corp.metzgers.com
> >
> > Authoritative answers can be found from:
> > metzgers.com    nameserver = NS1.DYNAMICWEB.NET
> > metzgers.com    nameserver = NS2.DYNAMICWEB.NET
> > media.metzgers.com      internet address = 206.165.56.209
> > corp.metzgers.com       internet address = 208.10.17.62
> > NS1.DYNAMICWEB.NET      internet address = 205.178.159.134
> > NS2.DYNAMICWEB.NET      internet address = 205.178.138.137
> >
> > Since I wasn't able to change the connection settings right away, I
figured
> > that I would leave both IPs active in the MX record. My thinking was
that
> > once the old connection was unavailable (media.metzgers.com), I thought
that
> > it would go to the new connection and static IP (corp.metzgers.com).
Anyway,
> > I have gotten the new connection set up, but no outside mail comes in.
Once
> > I go back to the old connection, the outside mail comes in. Was my
thinking
> > of the MX settings wrong? Or what should my MX record reflect to work in
> > this manner, if possible? Obviously, once I am comfortable with the new
ISDN
> > connection, I will have the old IP reference removed from the MX record.
> >
> > Thanks for any assistance you can provide.
> >
> > Regards,
> >
> > Eric Leslie
> > InfoSys/New Media
> > Metzgers Printing & Prepress
> > --------------------------------
> > E-mail: eric.leslie at metzgers.com
> > Website: www.metzgers.com
> > Phone: (419) 861-8611
> > Fax: (419) 861-3299
> > --------------------------------