Re: [cobalt-users] RAQ4i DNS - Interesting Reverse Lookup

["Stephan Whelan" <stephan.whelan@xxxxxxxxxxxxxx>]

----- Original Message -----
From: "Gerald Waugh" <gerald@xxxxxxxxx>
To: <cobalt-users@xxxxxxxxxxxxxxx>
Cc: "Stephan Whelan" <stephan.whelan@xxxxxxxxxxxxxx>
Sent: Wednesday, February 14, 2001 6:52 AM
Subject: Re: [cobalt-users] RAQ4i DNS - Interesting Reverse Lookup


> > > I've had a RAQ4i 512 looking after one of my major sites
www.deeperblue.net
> > > for a while now and it has been assigned two IP's of 212.67.200.130
and
> > > 212.67.200.131.
> > >
> > > Now whilst all domain names are resolving to the right websites I have
a
> > > concern when I do a Trace Route or a Reverse Lookup using any of the
two IP
> > > addresses.
> > >
> > > Instead of showing up as ns.deeperblue.net and ns2.deeperblue.net
(which are
> > > the assigned names for the two IP addresses) it comes up as
> > > ns.mda-communications.co.uk and ns2.mda-communications.co.uk which are
> > > supposed to be two very different IP addresses and not related to my
> > > business at all.
> > >
> The parent IP block of address (212.67.200.0 - 212.67.200.255) belong to:
>
> inetnum:     212.67.200.0 - 212.67.200.255
> netname:     WEBFUSION
> descr:       Webfusion Internet Solutions Limited
> descr:       Nottingham
> country:     GB
> admin-c:     JB3558-RIPE
> tech-c:      JAD11-RIPE
> rev-srv:     ns.webfusion.co.uk
> rev-srv:     ns2.webfusion.co.uk
> status:      ASSIGNED PA
> notify:      ripe@xxxxxxxxxxxxxxx
> mnt-by:      JAD11-RIPE-MNT
> changed:     james@xxxxxxxxxxxxxxx 19990607
> source:      RIPE
>
> Unless they delegate the IP addresses to you under the rules of RFC2317
they
> will always resolve to the owner.
> And, I think the smallest sub-net that can be delegated if /30 which is 4
IP
> addresses;
> 0 is the network address
> 1 is available
> 2 is available
> 3 is the broadcast address.
>
> I did some more checking and your reverse is working, so someone must have
done
> the work OK.
>
>  Query for 130.200.67.212.in-addr.arpa type=255 class=1
>   130.200.67.212.in-addr.arpa PTR (Pointer) ns.deeperblue.net
>   200.67.212.in-addr.arpa NS (Nameserver) ns.webfusion.co.uk
>   200.67.212.in-addr.arpa NS (Nameserver) ns2.webfusion.co.uk
>   ns.webfusion.co.uk A (Address) 212.67.202.1
>   ns2.webfusion.co.uk A (Address) 212.67.203.240
>
> Also go to http://www.his.com/cgi-bin/nslookup and enter your IP
> You will get:
> Name:    ns.deeperblue.net
> Address:  212.67.200.130
> Try it!
>
>
> Gerald
>


Gerald,

Thanks for your (and everyone else who replied to me!) help on this.

Your right, I worked with my Managed Hosting provider and resolved the issue
quickly.

Thanks again.

Stephan Whelan
Director

deeperblue.net limited