<div dir="ltr"><div class="gmail_extra"><div><div class="gmail_signature"><br></div></div><div class="gmail_quote">On Fri, Jan 20, 2017 at 10:57 AM, Ron Wingfield <span dir="ltr"><<a href="mailto:Ron.Wingfield@archaxis.net" target="_blank">Ron.Wingfield@archaxis.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF">
<p><font face="Calibri">I am having difficulty configuring reverse
DNS. This has been a problem for over a year between my
server(s) and my ISP, AT&T. Specifically, I cannot eMail
to any recipient that requires rDNS verification, e.g.,
SBCglobal.net, Comcast.net, or AOL. Very frustrating.<br>
<br>
Two examples of dig:<br>
<br>
# dig -t mx <a href="http://alpha.archaxis.net" target="_blank">alpha.archaxis.net</a><br>
ANSWER: 0, AUTHORITY: 1, <br>
<br>
Why does this first example, digging the FQDN of
<a href="http://alpha.archaxis.net" target="_blank">alpha.archaxis.net</a> reports one authority but no answers?<br>
<br>
# dig -t mx <a href="http://archaxis.net" target="_blank">archaxis.net</a><br>
ANSWER: 2, AUTHORITY: 0, <br>
<br>
. . .yet this second example. digging the FQDN of <a href="http://archaxis.net" target="_blank">archaxis.net</a>
reports no authority but 2 answers?<br>
<br>
(The) ;; ANSWER SECTION: (of both examples) reports: <br>
<a href="http://archaxis.net" target="_blank">archaxis.net</a>. 10800 IN MX 30
<a href="http://bravo.archaxis.net" target="_blank">bravo.archaxis.net</a>.<br>
<a href="http://archaxis.net" target="_blank">archaxis.net</a>. 10800 IN MX 20
<a href="http://alpha.archaxis.net" target="_blank">alpha.archaxis.net</a>.<br>
<br>
In both cases, the reported server is an AT&T server ;;
SERVER: 68.94.157.9#53<br>
. . .why shouldn’t this “point” to my server, 162.202.233.81 and
not AT&T’s?<br></font></p></div></blockquote><div>Just to clear up the confusion on this point:</div><div>dig is telling you that "<span style="font-family:calibri">SERVER: 68.94.157.9#53" is the DNS resolver that your computer used to answer the DNS question. That server is not part of the answer to the question. </span></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div bgcolor="#FFFFFF"><p><font face="Calibri">
<br>
I have coded my BIND 9 in-addr.arpa zone file as follows:<br>
<br>
</font><font face="Calibri">$ORIGIN 233.202.162.in-addr.arpa.</font><br>
<font face="Calibri">$TTL 3h</font><br>
<font face="Calibri">@ IN SOA <a href="http://ns1.archaxis.net" target="_blank">ns1.archaxis.net</a>.
<a href="http://me.archaxis.net" target="_blank">me.archaxis.net</a>. (</font><br>
<font face="Calibri"> <a href="tel:(201)%20701-2002" value="+12017012002" target="_blank">2017012002</a> ;
Serial</font><br>
<font face="Calibri"> <wbr> 1h ;
Refresh</font><br>
<font face="Calibri"> <wbr> 1h ;
Retry</font><br>
<font face="Calibri"> <wbr> 1h ;
Expire</font><br>
<font face="Calibri"> <wbr> 1h ) ;
Negative cashing TTL</font><br>
<br>
<font face="Calibri"> 3600 IN NS
<a href="http://ns1.archaxis.net" target="_blank">ns1.archaxis.net</a>.</font><br>
<font face="Calibri"> 3600 IN NS
<a href="http://ns2.archaxis.net" target="_blank">ns2.archaxis.net</a>.</font><br>
<br>
<font face="Calibri">80 3600 IN PTR
<a href="http://network.archaxis.net" target="_blank">network.archaxis.net</a>.</font><br>
<font face="Calibri">81 3600 IN PTR
<a href="http://alpha.archaxis.net" target="_blank">alpha.archaxis.net</a>.</font><br>
<font face="Calibri">82 3600 IN PTR
<a href="http://bravo.archaxis.net" target="_blank">bravo.archaxis.net</a>.</font><br>
<font face="Calibri">87 3600 IN PTR
<a href="http://broadcast.archaxis.net" target="_blank">broadcast.archaxis.net</a>.</font><br>
<br>
<font face="Calibri">What is wrong? Is this my problem, or with
AT&T?<br></font></p></div></blockquote><div><br></div><div>-- </div><div>Bob Harold</div><div> </div></div><br></div></div>