Search Again:

Re: PTR Records

From: Men & Mice Support
Date: Wednesday, April 5, 2000
Time: 2:05:57 am

At 4:42 PM +0800 4/5/00, Ron Holmes wrote:
>Hi,
>
>having used the domain wizard to set up my domain, I have checked to
>see if it worked (using DNS Expert of course) and got the following
>errors. .
>
>The name server "ns1.medicalshop.com.au." is vulnerable to spoofing attacks
>The cache of the server "ns1.medicalshop.com.au." can be poisoned
>with false data. This is a threat to the security of your domain.
>
>There is no PTR record for the host "ns1.medicalshop.com.au."
>There is no PTR record available for the host
>"ns1.medicalshop.com.au." which has the IP address 202.139.85.84.

Is this a QuickDNS server? If so, what version?

If it is the current version, have you configured it to forward
queries to another server? (You can check this in the Server
Preferences dialog, in the first panel.)

>I thought the PTR records were there having looked at the dns
>records using DNS expert:
>Query: medicalshop.com.au. Query type: Any record
>Recursive query: Yes Authoritative answer: Yes
>Query time: 1060 ms. Server name: n/a

Your query doesn't show any PTR records, because you asked for
records named medicalshop.com.au. PTR records have names like
86.85.139.202.in-addr.arpa.

Also, registering a domain file doesn't automatically give you
authority over the reverse zone. Reverse zones aren't tied to
domains, nor vice versa.

Here's the delegation of your reverse zone, starting from the root servers:

from f.root-servers.net:
202.in-addr.arpa. NS svc00.apnic.net.
202.in-addr.arpa. NS ns.apnic.net.
202.in-addr.arpa. NS ns.telstra.net.
202.in-addr.arpa. NS ns.ripe.net.

from ns.apnic.net:
85.139.202.in-addr.arpa. NS dns1.optus.net.au.
85.139.202.in-addr.arpa. NS dns0.optus.net.au.

from dns0.optus.net.au:
The host or domain "86.85.139.202.in-addr.arpa." does not exist

So the class C subnet is delegated to optus.net.au, not to your
servers. You'll need to discuss this with your provider to resolve it.
____________________________________________________________________
Chris Buxton cbuxton@menandmice.com
Men & Mice http://www.menandmice.com
Makers of: QuickDNS Pro



Messages In This Thread:



Return to Digital Point Solutions' Home Page