 | | | Need help with reverse DNS | Need help with reverse DNS 2004-01-25 - By IT Clown
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i think why you dont have a SOA is because it seems you
dont have a zone for "mollynet.com ". In the zone file you
will have to say that molly.net is SOA and your NS will be
the ip that ZoneEdit.com gave you to handle your name
resolutions.
Or am i missing the point?
On Sat, 24 Jan 2004 20:26:20 -0700
"Frank Reichenbacher " <frank@(protected) > wrote:
> I run a small private email list on qmail/ezmlm-idx off
> my RH 7.0
> machine on a DSL connection from my home. It 's been
> running well for two
> or three years now and earning its keep. Lately though, I
> noticed that
> the aol.com address are bouncing. The bounce message
> indicates that
> aol.com has blacklisted my server because of complaints
> about
> unsolicited bulk email. Well, strictly speaking this is
> impossible. I
> examine the logs and messages to postmaster frequntly,
> and I can see
> that my server is not being used by me or anyone else for
> mass
> unsolicited emails.
>
> I called aol.com and got the ball rolling to unblock me
> and establish a
> feedback loop, but in the meantime, I think I had better
> establish a
> reverse DNS zone for the server, just in case that had a
> part in the
> complaints. My problem is that I 've got to be very
> careful about this
> since I cannot afford any down time if I screw it up.
>
> Before getting into it, though, I must admit that DNS has
> been a very
> hard subject for me to understand. It 's also been quite a
> while since I
> set all this up and I 'm getting a little hazy about the
> whole process.
>
> I have DNS handled by ZoneEdit.com:
> Domain: mollynet.com, 66.93.153.62
> My ISP is Speakeasy.net.
>
> named.conf
> ;
> ; a caching only nameserver config
> ;
> directory /var/named
> cache . named.ca
> primary 0.0.127.in-addr.arpa named.local
>
> dig-x 66.93.153.62
> ; < < > > DiG 8.3 < < > > -x
> ;; res options: init recurs defnam dnsrch
> ;; got answer:
> ;; - > >HEADER < <- opcode: QUERY, status: NXDOMAIN, id: 4
> ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0,
> ADDITIONAL: 0
> ;; QUERY SECTION:
> ;; 1.1.168.192.in-addr.arpa, type = ANY, class = IN
>
> ;; ANSWER SECTION:
> 62.153.93.66.in-addr.arpa. 1H IN PTR
> dsl093-153-062.phx1.dsl.speakeasy.net
>
> nslookup -type=SOA mollynet.com
>
> Server: dsl231-041-022.sea1.dsl.speakeasy.net
> Address: 216.231.41.22
>
> Non-authoritative answer:
> mollynet.com
> origin = ns3.zoneedit.com
> mail addr = dnsadmin.zoneedit.com
> serial = 980910580
> refresh = 14400 (4H)
> retry = 7200 (2H)
> expire = 864000 (1w3d)
> minimum ttl = 7200 (2H)
>
> Okay now, this pointer record is my problem, right?
> 62.153.93.66.in-addr.arpa. 1H IN PTR
> dsl093-153-062.phx1.dsl.speakeasy.net
>
> If I tell Speakeasy.net to change that to:
> 62.153.93.66.in-addr.arpa. 1H IN PTR mollynet.com
>
> it will solve my problem. Right? Isn 't that what is meant
> by reverse
> DNS?
>
> If I do this, can I still have ZoneEdit.com handle DNS
> for me? Or do I
> then need to switch DNS to Speakeasy.net? This is
> important to me,
> because ZoneEdit is free, while Speakeasy.net is not.
>
> Here 's another part of the problem.
>
> nslookup -type=SOA 66.93.153.62
>
> *** No start of authority (SOA) records available for
> 66.93.153.62
>
> Where does the SOA for my IP address come from? I do not
> understand how
> there isn 't SOA.
>
> Any suggestions will be appreciated.
>
> Frank
>
>
>
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