Reverse DNS problems
ngaccess at hotpop.com
ngaccess at hotpop.com
Fri Mar 19 16:32:33 UTC 2004
First:
Domain servers in listed order:
HYDROGEN.SUEMILLS.COM 206.135.171.2
HOROGW.SUEMILLS.COM 64.218.226.140
Goto networksolutions and login to your dns management and delete the
host HOROGW.SUEMILLS.COM (or whatever they require you to do) and you
need to add a second server for redundancy. (FWIW, your ISP is correct in
saying they can't do it)
Next:
2.171.135.206.in-addr.arpa.
alias = 2.0-26.171.135.206.in-addr.arpa.
2.0-26.171.135.206.in-addr.arpa.
host = hydrogen.suemills.com.
This should simply be:
2.171.135.206.in-addr.arpa.
host = hydrogen.suemills.com.
Then:
3.171.135.206.in-addr.arpa.
alias = 3.0-26.171.135.206.in-addr.arpa.
3.0-26.171.135.206.in-addr.arpa.
host = radon.suemills.com.
This is your mx record which there again should simply be:
3.171.135.206.in-addr.arpa.
host = radon.suemills.com.
No 'alias' records ...
On 17 Mar 2004 at 16:38, John Emery wrote:
To: comp-protocols-dns-bind at isc.org
From: John Emery <nospam_john_nospam at suemills.com>
Subject: Reverse DNS problems
Date sent: Wed, 17 Mar 2004 16:38:38 -0800
Organization: Epoch Internet
> I'm trying to figure out why I can't modify the host lookup for our
> primary mail server. I have a revserse lookup file. Any machine
> pointing to our primary DNS server can do a reverse lookup on the mail
> server:
>
> # dig -x 206.135.171.3
>
> ; <<>> DiG 9.2.2 <<>> -x 206.135.171.3
> ;; global options: printcmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 61947
> ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1
>
> ;; QUESTION SECTION:
> ;3.171.135.206.in-addr.arpa. IN PTR
>
> ;; ANSWER SECTION:
> 3.171.135.206.in-addr.arpa. 10800 IN PTR radon.suemills.com.
>
> ;; AUTHORITY SECTION:
> 171.135.206.in-addr.arpa. 10800 IN NS hydrogen.suemills.com.
>
> ;; ADDITIONAL SECTION:
> hydrogen.suemills.com. 86400 IN A 206.135.171.2
>
> ;; Query time: 2 msec
> ;; SERVER: 206.135.171.2#53(206.135.171.2)
> ;; WHEN: Wed Mar 17 16:27:43 2004
> ;; MSG SIZE rcvd: 139
>
> #
>
> You'll notice that the Answer section gives "radon.suemills.com"
>
> But, if I use an outside DNS server:
>
> # dig @205.214.45.6 -x 206.135.171.3
>
> ; <<>> DiG 9.2.2 <<>> @205.214.45.6 -x 206.135.171.3
> ;; global options: printcmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 3955
> ;; flags: qr rd; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2
>
> ;; QUESTION SECTION:
> ;3.171.135.206.in-addr.arpa. IN PTR
>
> ;; ANSWER SECTION:
> 3.171.135.206.in-addr.arpa. 14400 IN CNAME
> 3.0-26.171.135.206.in-addr.arpa.
>
> ;; AUTHORITY SECTION:
> 0-26.171.135.206.in-addr.arpa. 14400 IN NS horogw.suemills.com.
> 0-26.171.135.206.in-addr.arpa. 14400 IN NS hydrogen.suemills.com.
>
> ;; ADDITIONAL SECTION:
> horogw.suemills.com. 67869 IN A 64.218.226.140
> hydrogen.suemills.com. 67869 IN A 206.135.171.2
>
> ;; Query time: 76 msec
> ;; SERVER: 205.214.45.6#53(205.214.45.6)
> ;; WHEN: Wed Mar 17 16:29:06 2004
> ;; MSG SIZE rcvd: 153
>
> #
>
> The Answer section gives "3.0-26.171.135.206.in-addr.arpa." as the host
> name.
>
> I'm having trouble sendin email out from this machine, to some domains,
> as they require a valid reverse host lookup.
>
> I called our ISP, and they say, the reverse authority has been deligated
> to our primary DNS servers. If I need anything changed, in the reverse
> zone, that is of course, my responsibility. AND, if I need any reverse
> lookup, authoritative DNS servers removed, or updated then I need to
> contact network solutions to do this. My ISP won't help past this point.
>
> If you notice, the "Additional Section" in the output of the second dig
> command there are 2 NS servers listed; horogw, and hydrogen.suemills.com.
>
> Well, horogw is no longer a valid host, nor is the IP one of ours.
> Since I can't think of anything else, seems to me that having this
> invalid host in the list could be causing the problem.
>
> So, how do I get this host removed from the list? How do add a new host
> name and IP to replace it as a backup? Could this be causing my reverse
> lookup problems?
>
> Thanks in advance for reading and, hopefully responding to this posting.
>
> John Emery
>
>
>
More information about the bind-users
mailing list