Re: PTR record setup
- From: "Gregg Hill" <bogus@xxxxxxxxxxx>
- Date: Mon, 31 Mar 2008 19:18:45 -0700
I agree that it should not be done. I just did not understand why it **could
not** be done.
I'm off to read the link from Lanwench!
Gregg Hill
"Dave Nickason [SBS MVP]" <gwdibble@xxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:OxV4SD2kIHA.4684@xxxxxxxxxxxxxxxxxxxxxxx
You can set DNS for the domain name because you own the domain name. The
PTR record applies to the IP address, and they're the ones who own that.
The reason it can't be done (creating your own record) is that there's no
way for you to do it - if you look in the DNS control panel at whoever
hosts your DNS, you'll see that this is not an option you can set.
I would speculate that letting domain registrants control PTR records
would be an invitation for disaster - for example, people would create
them for dynamic IPs, and they'd be wrong when the IP changed. Even
having a fixed IP does not guarantee that you'll have the same fixed IP
indefinitely.
"Gregg Hill" <bogus@xxxxxxxxxxx> wrote in message
news:uVVWOv1kIHA.2276@xxxxxxxxxxxxxxxxxxxxxxx
Begs what question?
I guess what I meant is, "What is to stop a person from setting up a PTR
record on their DNS host's servers or their own public-facing DNS
server?"
Not that I would do it, but why CAN'T it be done?
I do not understand **why** it can only be done by the ISP. Is there
something in the lookup mechanism that makes it only work if the ISP did
it?
Gregg Hill
"Lanwench [MVP - Exchange]"
<lanwench@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote in
message news:OXoAZZ1kIHA.1280@xxxxxxxxxxxxxxxxxxxxxxx
Gregg Hill <bogus@xxxxxxxxxxx> wrote:
Hello!
While discussing PTR records for mail servers in a Vamsoft ORF
newsgroup, the question came up about who can set up a PTR and where.
I had always been told that only the owner of the IP block could set
up the PTR record, i.e., the ISP has to do it.
That'scorrect. Or, they can delegate it to you, but the odds of them
doing that are slim to none.
This question came up:
"I wonder what happens if the ISP customer's authoritative Name
Servers publish a PTR record for their ISP-assigned IP address--
OK. Where would the customer be doing this?
both
in the cases that the ISP does and doesn't have a PTR in their own
Name Servers. Is there some mechanism that keeps the customer's PTRs
from being looked-up by the Internet?"
So according to everything I have read (mostly posts in here), the
ISP has to do it.
Yes, as per above.
The question is, why can't anyone do it on their
own DNS server, or on their DNS host such as GoDaddy, etc?
This somewhat begs the question :-)
Thank you!
Gregg Hill
.
- Prev by Date: Re: DHCP Not working properly
- Next by Date: Re: Trend Micro CSM Issue
- Previous by thread: RE: RWW not accessible over web
- Next by thread: Re: PTR record setup
- Index(es):
Relevant Pages
|
