[TriLUG] Reverse DNS

[Aaron Joyner]

Joseph is precisely correct. They may delegate to you via CNAME, but you'll
still need their involvement.

Try this command for a look into how it works (with your IP instead of the
RFC 1918 address below):

$ dig +trace -x 10.0.0.10

Aaron S. Joyner

PS - Typing this on my phone at breakfast.  Please forgive me if I got the
syntax wrong.  :-)
On Apr 17, 2013 6:51 AM, "Joseph S. Tate" <dragonstrider at gmail.com> wrote:

> Reverse DNS entries have to be entered by the owners of the IP block.
>  Contact your ISP for PTR records.
>
>
> On Wed, Apr 17, 2013 at 6:34 AM, Brian McCullough <bdmc at bdmcc-us.com>
> wrote:
>
> > I should have asked for help earlier, but "better late than never."
> >
> >
> > I am helping a friend with his domain, and he has just had to change
> > ISPs, so all the IPs have changed.
> >
> > We seem to have good NS records, good A and MX records, because I can
> > use "host" to look up all of his public machines.
> >
> > I have created a reverse file with PTR records for all of the allocated
> > IPs in the range, and I can use host to get a good response for those,
> > or at least I think it's a good response.  At least it resolves to
> > something.
> >
> > However, certain mail hosts, and even web tools, say that there are no
> > reverse DNS records to be found.
> >
> >
> > What might I have done wrong, and how might I fix it?
> >
> > I will be happy to share examples.
> >
> >
> > Thanks,
> > Brian
> >
> > --
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>
>
>
> --
> Joseph Tate
> --
> This message was sent to: Aaron S. Joyner <aaron at joyner.ws>
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