ericfl at dialtoneinternet
Jul 13, 2000, 5:58 AM
Post #9 of 19
On Wed, 12 Jul 2000, you wrote:
[In reply to]
> At 03:19 PM 7/12/00 -0700, you wrote:
> >Can you give me a good place to start looking in DNS for a solution. The
> >box running qmail is also the DNS box. I am in charge of both of them,
> >although rather green in both too. Anyway I am looking for a good place
> >to start. I am on the bind list and have mailed out my named.conf /
> >127.0.0 files and everyone says it's good to go. I have applied the
> >patch, re-did the make setup check, and config-fast. I still have CNAME
> >failures happening. I really want to get this resolved, but I am quickly
> >becoming stumped. Please help.
> Could it be the fact that my ip 126.96.36.199 resolves to
> jdsl35.phnx.uswest.net and when I did the config-fast andigilog.com it is
> confused. But I want to receive mail for andigilog.com. What am I doing
> wrong? I haven't yet, but I will have the DNS server for andigilog.com
> (presently earthlink) change the MX to point to
> jdsl35.phnx.uswest.net. Where and how can I resolve this?
> Steven M. Klass
> Systems Administrator
> Andigilog Inc.
> 7404 W. Detroit Street, Suite 100
> Chandler, AZ 85226
> Ph: 602-940-6200 ext. 18
> Fax: 602-940-4255
> sklass [at] andigilog
DNS seems to stump more people than anything else, yet it's
First, forget cnames. They'll just get you in trouble. Think in terms of
machine name and mail exchanger (MX) records.
What's the name of the machine your mta is on. No matter what the original name
of that machine, you can declare it as mail.domain and assign it any address you
want (assuming the address belongs to you). If you are the authoritative DNS
host for andigilog.com, you can put records for andigilog.com in the zone file
and they'll be valid.
(If you don't like mail, use any name you like)
Along with declaring the address record for mail, you can use the MX record to
point to the location of the mta. Of course, the MX record pointing to a
specific domain can be used in any DNS zone file, not so for the A record.
IF you try to claim authority for a DNS zone and someone else really is, you
have created a "lame delegation"
If you are trying to receive mail for andigilog.com and there is no MX record
in the AUTHORATATIVE DNS zone file pointing to you, forget it. You will have
trouble receiving any mail for andigilog.com, if at all.
Sorry if it seems like I'm ranting.... I do a lot of DNS and I see so much wrong
information and nonunderstaning that it drives me up a tree.
If you have a DNS question, direct it to me personally. I'll give you the best
answer I'm capable of.
Eric Fletcher - Data Center Support
Dialtone Internet - Extremely Fast Web Systems
(954) 581-0097 - Voice (954) 581-7629 - Fax
ericfl [at] dialtoneinternet - Email