Patrick Mahan wrote:
Andrew Falanga presented these words - circa 9/6/08 6:28 PM->
Hi,
Well, my clients at church are still having issues and after working
with George, a respondant to my original questions, I think that
most, if not all, of my problems are related to DNS and how we've got
it improperly configured.
First, a crude drawing of how our mail server exists in the world:
192.168.2.x/24 72.24.23.252 "lot's of networks"
Private Network <--> CableOne <--> Internet
Now, our mail server's IP is 192.168.2.23. On the router, he (the
person at whose house the mail server is) has IP forwarding setup so
that mail get's sent to our FreeBSD machine. Using dig, here's the
responses:
(from my FBSD machine at home, not the server)
[/usr/home/andy]
-> dig +short -t MX whitneybaptist.org
10 mail.whitneybaptist.org.
[/usr/home/andy]
-> dig +short -t A whitneybaptist.org
72.24.34.252
[/usr/home/andy]
-> dig +short -x 72.24.34.252
34-252.72-24-cpe.cableone.net.
(from the church FBSD machine)
[/home/afalanga]
-> hostname
whitbap
[/home/afalanga]
-> ifconfig fxp0
fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
options=8<VLAN_MTU>
inet 192.168.2.23 netmask 0xffffff00 broadcast 255.255.255.255
ether 00:d0:b7:74:87:48
media: Ethernet autoselect (100baseTX <full-duplex>)
status: active
[/home/afalanga]
-> cat /etc/resolv.conf
search McCutchanLAN
nameserver 192.168.2.1
It doesn't take a rocket scientist, or a computer scientist, to
figure out we've got DNS issues. I'm thinking that I should setup a
domain within the 192.168.2.0/24 network on this box. I've done this
before, at work. The question I've got is I've never actually
integrated a domain like this to a domain on the Internet. I'm
thinking that we'll setup something like: internal.whitneybaptist.org
with hosts in that sub-domain.
First, what are you trying to accomplish with the internal DNS? Make
it easier to
resolve machines in the 192.168.2.0 network? Allow lookups external
of the
192.168.2.0 network? What machine is 'mail.whitneybaptist.com'? Is
it on the
192.168.2.0 network? Is it reachable from the Internet?
Who is the owner of whitneybaptist.org DNS zone? I show the following
NS servers:
[EMAIL PROTECTED]/src/MPS/DocDownload 140 > dig +short -t NS
whitneybaptist.org
ns1.domaindirect.com.
ns2.domaindirect.com.
ns3.domaindirect.com.
Which is administered by tucows.com (Tucows, Inc) a seller of DNS
services.
So, what would my DNS tables need to look like to make this happen.
Also, to any knowledgable souls here, what RFCs address these issues?
You can read the RFC's if you want, but you would be better served to
purchase
"DNS and BIND, Fourth Edition, by Paul Albitz & Cricket Liu" to learn
how to
administer DNS.
Patrick
It's been quite some time since I last looked at that book. It was at
edition 3 then, and owned by the company I worked for so I didn't get to
keep it. I'll have to look into it.
Andy
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