[root (at mark) www ~]# host uhostme.com
uhostme.com has address 216.130.248.51
[root (at mark) www ~]# host uhostme.net
uhostme.net has address 216.130.248.50
[root (at mark) www ~]# host 216.130.248.51
Host 51.248.130.216.in-addr.arpa not found: 2(SERVFAIL)
[root (at mark) www ~]# host 216.130.248.50
Host 50.248.130.216.in-addr.arpa not found: 2(SERVFAIL)
[root@www ~]#
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http://www.dnsstuff.com/tools/ptr.ch?ip=216.130.248.50
Reverse DNS for 216.130.248.50
216.130.248.50 PTR record: uhostme.net. [TTL 1400s] [A=216.130.248.50]
http://www.dnsstuff.com/tools/ptr.ch?ip=216.130.248.51
Reverse DNS for 216.130.248.51
216.130.248.51 PTR record: www.uhostme.net. [TTL 1400s] [A=216.130.248.50]
*ERROR* A record does not point back to original IP.
216.130.248.51 PTR record: uhostme.com. [TTL 1400s] [A=216.130.248.51]
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I have had my provider update the Reverse PTR for 216.130.248.51, but it's
still trying to show there are TWO!
-----Original Message-----
From: Larry Smith [mailto:lesmith (at mark) ecsis.net]
Sent: Sunday, May 14, 2006 12:43 AM
To: coba-e (at mark) bluequartz.org
Subject: [coba-e:05167] Re: DNS Report Warning
Hmmm, sounds like your box is "confused" about which IP is which. From
inside
the box (logged in via ssh/telnet) enter "host www.uhostme.com and also
host www.uhostme.net, then do the same thing for the two IP addresses and
see
if the answers match correctly. Something in the network configuration has
it reading the wrong interface or reporting incorrectly. That sendmail line
works fine for my boxes here and they each "answer" with their own name.
--
Larry Smith
SysAd ECSIS.NET
sysad (at mark) ecsis.net