How to format DNS PTR record ?
We have been told by AOL that our email to it
is blocked because we do not have a reverse record defined. We defined it - but it seems incorrectly ? When we check with dnsstuff.com it says: "No PTR record defined". Can someone who is a DNS export please help with this ? -> Thank you so very much ! in file: /etc/named.conf ====================================== zone "pcom.com" { type master; file "pcom.com.hosts"; }; zone "8.48.51.64.in-addr.arpa"{ type master; file "/var/named/8.48.51.64.rev"; }; in file: pcom.com.hosts: ====================================== $TTL 38400 pcom.com. IN SOA ns1.pcom.com. hostmaster.pcom.com. ( 200205058 ; 10800 ; 3600 ; 604800 ; 86400 ) ; pcom.com. IN NS ns1.pcom.com. pcom.com. IN NS ns2.pcom.com. localhost.pcom.com. IN A 127.0.0.1 mail.pcom.com. IN A 64.51.48.8 pcom.com. IN MX 10 mail.pcom.com. ns1.pcom.com. IN A 64.51.48.8 in file: ====================================== $TTL 38400 8.48.51.64.in-addr.arpa. IN SOA ns1.pcom.com. hostmaster.pcom.com. ( 2004062901 10800 3600 604800 38400 ) 8.48.51.64.in-addr.arpa. IN NS ns1.pcom.com. 9.48.51.64.in-addr.arpa. IN NS ns2.pcom.com. 8.48.51.64.in-addr.arpa. IN PTR ns1.pcom.com. 8.48.51.64.in-addr.arpa. IN PTR lin.pcom.com. 8.48.51.64.in-addr.arpa. IN PTR mail.pcom.com. |
Are you pcom.com or just using it as an example?
PCOM shows a different ipaddress when looked up... it is not 64.51.x.x You will also need to request your ISP to set the PTR record for your subnet. |
yes, pcom is just an example of what we are using. The format of the records are exactly like that though...the numbers and names have been changed to protect the innocent... :-)
We co-locate our server and so you are saying that we have to approach our ISP even though we are running our own DNS server for the domains we host...but I did notice that the main IP addr has a reverse entry that points back to the ISP - of course they own the whole block... |
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