Re: [cobalt-users] Need DNS Entry EXAMPLES

["Steve Werby" <steve-lists@xxxxxxxxxxxx>]

"John D. Gorena" <Support@xxxxxxxxxxxxxxxxxxx> wrote:
> I need someone to tell me how to create all my DNS entries so that I do
> not get errors.  I need forwards, mail, and reverse DNS entries.
>
> OK FOR EXAMPLE IF MY:
> Name servers are:
>    ns1.nbc.com  111.222.333.444
>    ns2.nbc.com  111.222.333.555
> My domain is www.abc.com
> IP is 111.222.333.444
> net mask is 255.255.255.0
> I also want my POP and SMTP to be "abc.com"
>
> What would all the DNS lines look like for such a vertual site?  server?
>
>
> Currently, I have the following for "abc.com"
> www.abc.com   forward   111.222.333.444
> abc.com   forward   111.222.333.444
> abc.com   mail highest   abc.com
> 111.222.333.444/255.255.255.0  Reverse abc.com

That is all you need for the scenario you described.  I'd advise NS records
for each of the name servers listed as authoritative for the domain in the
root name servers as well though.  And when you say "I have" do you mean in
your Cobalt GUI or that you've verified that authoritative name servers
report the above?  This is particularly important because if you have done
the reverse DNS in the GUI, but have not been delegated authority to manage
rdns then that doesn't accomplish anything.

> I have the above formats but I keep getting an error and slow e-mail
> sending.  The report from http://www.dnsreport.com shows:
> " ERROR: One or more of your mail server(s) have no reverse DNS (PTR)
> entries (if you see "Timeout" below, it may mean that your DNS servers
> did not respond fast enough). RFC1912 2.1 says you should have a reverse
> DNS for all your mail servers. It is strongly urged that you have them,
> as many mailservers will not accept mail from mailservers with no
> reverse DNS entry. The problem MX records are:
> 444.333.222.111.in-addr.arpa [No reverse DNS entry (rcode: 3 ancount:
> 0)]"

If you want further assistance from me on-list please post the real domain
name and IP address.  It's all public information anyway and it'll help me
help you address this issue, which I assume is your goal.

--
Steve Werby
President, Befriend Internet Services LLC
http://www.befriend.com/